[3/5] media: i2c: Add TDA1997x HDMI receiver driver

Message ID 1510253136-14153-4-git-send-email-tharvey@gateworks.com
State Changes Requested
Headers show
Series
  • TDA1997x HDMI video receiver
Related show

Commit Message

Tim Harvey Nov. 9, 2017, 6:45 p.m.
Add support for the TDA1997x HDMI receivers.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
v3:
 - use V4L2_DV_BT_FRAME_WIDTH/HEIGHT macros
 - fixed missing break
 - use only hdmi_infoframe_log for infoframe logging
 - simplify tda1997x_s_stream error handling
 - add delayed work proc to handle hotplug enable/disable
 - fix set_edid (disable HPD before writing, enable after)
 - remove enabling edid by default
 - initialize timings
 - take quant range into account in colorspace conversion
 - remove vendor/product tracking (we provide this in log_status via infoframes)
 - add v4l_controls
 - add more detail to log_status
 - calculate vhref generator timings
 - timing detection fixes (rounding errors, hswidth errors)
 - rename configure_input/configure_conv functions

v2:
 - implement dv timings enum/cap
 - remove deprecated g_mbus_config op
 - fix dv_query_timings
 - add EDID get/set handling
 - remove max-pixel-rate support
 - add audio codec DAI support
 - change audio bindings
---
 drivers/media/i2c/Kconfig            |    9 +
 drivers/media/i2c/Makefile           |    1 +
 drivers/media/i2c/tda1997x.c         | 3485 ++++++++++++++++++++++++++++++++++
 include/dt-bindings/media/tda1997x.h |   78 +
 include/media/i2c/tda1997x.h         |   53 +
 5 files changed, 3626 insertions(+)
 create mode 100644 drivers/media/i2c/tda1997x.c
 create mode 100644 include/dt-bindings/media/tda1997x.h
 create mode 100644 include/media/i2c/tda1997x.h

Comments

Rob Herring Nov. 15, 2017, 3:52 p.m. | #1
On Thu, Nov 09, 2017 at 10:45:34AM -0800, Tim Harvey wrote:
> Add support for the TDA1997x HDMI receivers.
> 
> Cc: Hans Verkuil <hverkuil@xs4all.nl>
> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
> ---
> v3:
>  - use V4L2_DV_BT_FRAME_WIDTH/HEIGHT macros
>  - fixed missing break
>  - use only hdmi_infoframe_log for infoframe logging
>  - simplify tda1997x_s_stream error handling
>  - add delayed work proc to handle hotplug enable/disable
>  - fix set_edid (disable HPD before writing, enable after)
>  - remove enabling edid by default
>  - initialize timings
>  - take quant range into account in colorspace conversion
>  - remove vendor/product tracking (we provide this in log_status via infoframes)
>  - add v4l_controls
>  - add more detail to log_status
>  - calculate vhref generator timings
>  - timing detection fixes (rounding errors, hswidth errors)
>  - rename configure_input/configure_conv functions
> 
> v2:
>  - implement dv timings enum/cap
>  - remove deprecated g_mbus_config op
>  - fix dv_query_timings
>  - add EDID get/set handling
>  - remove max-pixel-rate support
>  - add audio codec DAI support
>  - change audio bindings
> ---
>  drivers/media/i2c/Kconfig            |    9 +
>  drivers/media/i2c/Makefile           |    1 +
>  drivers/media/i2c/tda1997x.c         | 3485 ++++++++++++++++++++++++++++++++++
>  include/dt-bindings/media/tda1997x.h |   78 +

This belongs with the binding documentation patch.

>  include/media/i2c/tda1997x.h         |   53 +
>  5 files changed, 3626 insertions(+)
>  create mode 100644 drivers/media/i2c/tda1997x.c
>  create mode 100644 include/dt-bindings/media/tda1997x.h
>  create mode 100644 include/media/i2c/tda1997x.h
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Tim Harvey Nov. 15, 2017, 6:31 p.m. | #2
On Wed, Nov 15, 2017 at 7:52 AM, Rob Herring <robh@kernel.org> wrote:
> On Thu, Nov 09, 2017 at 10:45:34AM -0800, Tim Harvey wrote:
>> Add support for the TDA1997x HDMI receivers.
>>
>> Cc: Hans Verkuil <hverkuil@xs4all.nl>
>> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
>> ---
>> v3:
>>  - use V4L2_DV_BT_FRAME_WIDTH/HEIGHT macros
>>  - fixed missing break
>>  - use only hdmi_infoframe_log for infoframe logging
>>  - simplify tda1997x_s_stream error handling
>>  - add delayed work proc to handle hotplug enable/disable
>>  - fix set_edid (disable HPD before writing, enable after)
>>  - remove enabling edid by default
>>  - initialize timings
>>  - take quant range into account in colorspace conversion
>>  - remove vendor/product tracking (we provide this in log_status via infoframes)
>>  - add v4l_controls
>>  - add more detail to log_status
>>  - calculate vhref generator timings
>>  - timing detection fixes (rounding errors, hswidth errors)
>>  - rename configure_input/configure_conv functions
>>
>> v2:
>>  - implement dv timings enum/cap
>>  - remove deprecated g_mbus_config op
>>  - fix dv_query_timings
>>  - add EDID get/set handling
>>  - remove max-pixel-rate support
>>  - add audio codec DAI support
>>  - change audio bindings
>> ---
>>  drivers/media/i2c/Kconfig            |    9 +
>>  drivers/media/i2c/Makefile           |    1 +
>>  drivers/media/i2c/tda1997x.c         | 3485 ++++++++++++++++++++++++++++++++++
>>  include/dt-bindings/media/tda1997x.h |   78 +
>
> This belongs with the binding documentation patch.
>

Rob,

Thanks - missed that. I will move it for v4.

Regarding your previous comment to the v2 series:
> The rest of the binding looks fine, but I have some reservations about
> this. I think this should be common probably. There's been a few
> bindings for display recently that deal with the interface format. Maybe
> some vendor property is needed here to map a standard interface format
> back to pin configuration.

I take it this is not an 'Ack' for the bindings?

Which did you feel should be made common? I admit I was surprised
there wasn't a common binding for audio bus format (i2s|spdif) but if
you were referring to the video data that would probably be much more
complicated.

I was hoping one of the media/driver maintainers would respond to your
comment with thoughts as I'm not familiar with a very wide variety of
receivers.

Best regards,

Tim
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Rob Herring Nov. 16, 2017, 4:30 a.m. | #3
On Wed, Nov 15, 2017 at 10:31:14AM -0800, Tim Harvey wrote:
> On Wed, Nov 15, 2017 at 7:52 AM, Rob Herring <robh@kernel.org> wrote:
> > On Thu, Nov 09, 2017 at 10:45:34AM -0800, Tim Harvey wrote:
> >> Add support for the TDA1997x HDMI receivers.
> >>
> >> Cc: Hans Verkuil <hverkuil@xs4all.nl>
> >> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
> >> ---
> >> v3:
> >>  - use V4L2_DV_BT_FRAME_WIDTH/HEIGHT macros
> >>  - fixed missing break
> >>  - use only hdmi_infoframe_log for infoframe logging
> >>  - simplify tda1997x_s_stream error handling
> >>  - add delayed work proc to handle hotplug enable/disable
> >>  - fix set_edid (disable HPD before writing, enable after)
> >>  - remove enabling edid by default
> >>  - initialize timings
> >>  - take quant range into account in colorspace conversion
> >>  - remove vendor/product tracking (we provide this in log_status via infoframes)
> >>  - add v4l_controls
> >>  - add more detail to log_status
> >>  - calculate vhref generator timings
> >>  - timing detection fixes (rounding errors, hswidth errors)
> >>  - rename configure_input/configure_conv functions
> >>
> >> v2:
> >>  - implement dv timings enum/cap
> >>  - remove deprecated g_mbus_config op
> >>  - fix dv_query_timings
> >>  - add EDID get/set handling
> >>  - remove max-pixel-rate support
> >>  - add audio codec DAI support
> >>  - change audio bindings
> >> ---
> >>  drivers/media/i2c/Kconfig            |    9 +
> >>  drivers/media/i2c/Makefile           |    1 +
> >>  drivers/media/i2c/tda1997x.c         | 3485 ++++++++++++++++++++++++++++++++++
> >>  include/dt-bindings/media/tda1997x.h |   78 +
> >
> > This belongs with the binding documentation patch.
> >
> 
> Rob,
> 
> Thanks - missed that. I will move it for v4.
> 
> Regarding your previous comment to the v2 series:
> > The rest of the binding looks fine, but I have some reservations about
> > this. I think this should be common probably. There's been a few
> > bindings for display recently that deal with the interface format. Maybe
> > some vendor property is needed here to map a standard interface format
> > back to pin configuration.
> 
> I take it this is not an 'Ack' for the bindings?
> 
> Which did you feel should be made common? I admit I was surprised
> there wasn't a common binding for audio bus format (i2s|spdif) but if
> you were referring to the video data that would probably be much more
> complicated.

The video data. Either you have to try to come up with some way to map 
color components to signals/pins (and even cycles) or you just enumerate 
the formats and keep adding to them when new ones appear. There's h/w 
that allows the former, but in the end you have to interoperate, so 
enumerating the formats is probably enough.

> I was hoping one of the media/driver maintainers would respond to your
> comment with thoughts as I'm not familiar with a very wide variety of
> receivers.

I am hoping, too.

Rob
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Patch

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 9415389..c2b0400 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -56,6 +56,15 @@  config VIDEO_TDA9840
 	  To compile this driver as a module, choose M here: the
 	  module will be called tda9840.
 
+config VIDEO_TDA1997X
+	tristate "NXP TDA1997x HDMI receiver"
+	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
+	---help---
+	  V4L2 subdevice driver for the NXP TDA1997x HDMI receivers.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tda1997x.
+
 config VIDEO_TEA6415C
 	tristate "Philips TEA6415C audio processor"
 	depends on I2C
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index c843c18..58f2b2e 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -12,6 +12,7 @@  obj-$(CONFIG_VIDEO_TVAUDIO) += tvaudio.o
 obj-$(CONFIG_VIDEO_TDA7432) += tda7432.o
 obj-$(CONFIG_VIDEO_SAA6588) += saa6588.o
 obj-$(CONFIG_VIDEO_TDA9840) += tda9840.o
+obj-$(CONFIG_VIDEO_TDA1997X) += tda1997x.o
 obj-$(CONFIG_VIDEO_TEA6415C) += tea6415c.o
 obj-$(CONFIG_VIDEO_TEA6420) += tea6420.o
 obj-$(CONFIG_VIDEO_SAA7110) += saa7110.o
diff --git a/drivers/media/i2c/tda1997x.c b/drivers/media/i2c/tda1997x.c
new file mode 100644
index 0000000..662c3a7
--- /dev/null
+++ b/drivers/media/i2c/tda1997x.c
@@ -0,0 +1,3485 @@ 
+/*
+ * Copyright (C) 2017 Gateworks Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/delay.h>
+#include <linux/hdmi.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_graph.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/types.h>
+#include <linux/v4l2-dv-timings.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-fwnode.h>
+#include <media/i2c/tda1997x.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <dt-bindings/media/tda1997x.h>
+
+/* debug level */
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "debug level (0-2)");
+
+/* Page 0x00 - General Control */
+#define REG_VERSION		0x0000
+#define REG_INPUT_SEL		0x0001
+#define REG_SVC_MODE		0x0002
+#define REG_HPD_MAN_CTRL	0x0003
+#define REG_RT_MAN_CTRL		0x0004
+#define REG_STANDBY_SOFT_RST	0x000A
+#define REG_HDMI_SOFT_RST	0x000B
+#define REG_HDMI_INFO_RST	0x000C
+#define REG_INT_FLG_CLR_TOP	0x000E
+#define REG_INT_FLG_CLR_SUS	0x000F
+#define REG_INT_FLG_CLR_DDC	0x0010
+#define REG_INT_FLG_CLR_RATE	0x0011
+#define REG_INT_FLG_CLR_MODE	0x0012
+#define REG_INT_FLG_CLR_INFO	0x0013
+#define REG_INT_FLG_CLR_AUDIO	0x0014
+#define REG_INT_FLG_CLR_HDCP	0x0015
+#define REG_INT_FLG_CLR_AFE	0x0016
+#define REG_INT_MASK_TOP	0x0017
+#define REG_INT_MASK_SUS	0x0018
+#define REG_INT_MASK_DDC	0x0019
+#define REG_INT_MASK_RATE	0x001A
+#define REG_INT_MASK_MODE	0x001B
+#define REG_INT_MASK_INFO	0x001C
+#define REG_INT_MASK_AUDIO	0x001D
+#define REG_INT_MASK_HDCP	0x001E
+#define REG_INT_MASK_AFE	0x001F
+#define REG_DETECT_5V		0x0020
+#define REG_SUS_STATUS		0x0021
+#define REG_V_PER		0x0022
+#define REG_H_PER		0x0025
+#define REG_HS_WIDTH		0x0027
+#define REG_FMT_H_TOT		0x0029
+#define REG_FMT_H_ACT		0x002b
+#define REG_FMT_H_FRONT		0x002d
+#define REG_FMT_H_SYNC		0x002f
+#define REG_FMT_H_BACK		0x0031
+#define REG_FMT_V_TOT		0x0033
+#define REG_FMT_V_ACT		0x0035
+#define REG_FMT_V_FRONT_F1	0x0037
+#define REG_FMT_V_FRONT_F2	0x0038
+#define REG_FMT_V_SYNC		0x0039
+#define REG_FMT_V_BACK_F1	0x003a
+#define REG_FMT_V_BACK_F2	0x003b
+#define REG_FMT_DE_ACT		0x003c
+#define REG_RATE_CTRL		0x0040
+#define REG_CLK_MIN_RATE	0x0043
+#define REG_CLK_MAX_RATE	0x0046
+#define REG_CLK_A_STATUS	0x0049
+#define REG_CLK_A_RATE		0x004A
+#define REG_DRIFT_CLK_A_REG	0x004D
+#define REG_CLK_B_STATUS	0x004E
+#define REG_CLK_B_RATE		0x004F
+#define REG_DRIFT_CLK_B_REG	0x0052
+#define REG_HDCP_CTRL		0x0060
+#define REG_HDCP_KDS		0x0061
+#define REG_HDCP_BCAPS		0x0063
+#define REG_HDCP_KEY_CTRL	0x0064
+#define REG_INFO_CTRL		0x0076
+#define REG_INFO_EXCEED		0x0077
+#define REG_PIX_REPEAT		0x007B
+#define REG_AUDIO_PATH		0x007C
+#define REG_AUDCFG		0x007D
+#define REG_AUDIO_OUT_ENABLE	0x007E
+#define REG_AUDIO_OUT_HIZ	0x007F
+#define REG_VDP_CTRL		0x0080
+#define REG_VDP_MATRIX		0x0081
+#define REG_VHREF_CTRL		0x00A0
+#define REG_PXCNT_PR		0x00A2
+#define REG_PXCNT_NPIX		0x00A4
+#define REG_LCNT_PR		0x00A6
+#define REG_LCNT_NLIN		0x00A8
+#define REG_HREF_S		0x00AA
+#define REG_HREF_E		0x00AC
+#define REG_HS_S		0x00AE
+#define REG_HS_E		0x00B0
+#define REG_VREF_F1_S		0x00B2
+#define REG_VREF_F1_WIDTH	0x00B4
+#define REG_VREF_F2_S		0x00B5
+#define REG_VREF_F2_WIDTH	0x00B7
+#define REG_VS_F1_LINE_S	0x00B8
+#define REG_VS_F1_LINE_WIDTH	0x00BA
+#define REG_VS_F2_LINE_S	0x00BB
+#define REG_VS_F2_LINE_WIDTH	0x00BD
+#define REG_VS_F1_PIX_S		0x00BE
+#define REG_VS_F1_PIX_E		0x00C0
+#define REG_VS_F2_PIX_S		0x00C2
+#define REG_VS_F2_PIX_E		0x00C4
+#define REG_FREF_F1_S		0x00C6
+#define REG_FREF_F2_S		0x00C8
+#define REG_FDW_S		0x00ca
+#define REG_FDW_E		0x00cc
+#define REG_BLK_GY		0x00da
+#define REG_BLK_BU		0x00dc
+#define REG_BLK_RV		0x00de
+#define REG_FILTERS_CTRL	0x00e0
+#define REG_DITHERING_CTRL	0x00E9
+#define REG_OF			0x00EA
+#define REG_PCLK		0x00EB
+#define REG_HS_HREF		0x00EC
+#define REG_VS_VREF		0x00ED
+#define REG_DE_FREF		0x00EE
+#define REG_VP35_32_CTRL	0x00EF
+#define REG_VP31_28_CTRL	0x00F0
+#define REG_VP27_24_CTRL	0x00F1
+#define REG_VP23_20_CTRL	0x00F2
+#define REG_VP19_16_CTRL	0x00F3
+#define REG_VP15_12_CTRL	0x00F4
+#define REG_VP11_08_CTRL	0x00F5
+#define REG_VP07_04_CTRL	0x00F6
+#define REG_VP03_00_CTRL	0x00F7
+#define REG_CURPAGE_00H		0xFF
+
+#define MASK_VPER		0x3fffff
+#define MASK_VHREF		0x3fff
+#define MASK_HPER		0x0fff
+#define MASK_HSWIDTH		0x03ff
+
+/* HPD Detection */
+#define DETECT_UTIL		BIT(7)	/* utility of HDMI level */
+#define DETECT_HPD		BIT(6)	/* HPD of HDMI level */
+#define DETECT_5V_SEL		BIT(2)	/* 5V present on selected input */
+#define DETECT_5V_B		BIT(1)	/* 5V present on input B */
+#define DETECT_5V_A		BIT(0)	/* 5V present on input A */
+
+/* Input Select */
+#define INPUT_SEL_RST_FMT	BIT(7)	/* 1=reset format measurement */
+#define INPUT_SEL_RST_VDP	BIT(2)	/* 1=reset video data path */
+#define INPUT_SEL_OUT_MODE	BIT(1)	/* 0=loop 1=bypass */
+#define INPUT_SEL_B		BIT(0)	/* 0=inputA 1=inputB */
+
+/* Service Mode */
+#define SVC_MODE_CLK2_MASK	0xc0
+#define SVC_MODE_CLK2_SHIFT	6
+#define SVC_MODE_CLK2_XTL	0L
+#define SVC_MODE_CLK2_XTLDIV2	1L
+#define SVC_MODE_CLK2_HDMIX2	3L
+#define SVC_MODE_CLK1_MASK	0x30
+#define SVC_MODE_CLK1_SHIFT	4
+#define SVC_MODE_CLK1_XTAL	0L
+#define SVC_MODE_CLK1_XTLDIV2	1L
+#define SVC_MODE_CLK1_HDMI	3L
+#define SVC_MODE_RAMP		BIT(3)	/* 0=colorbar 1=ramp */
+#define SVC_MODE_PAL		BIT(2)	/* 0=NTSC(480i/p) 1=PAL(576i/p) */
+#define SVC_MODE_INT_PROG	BIT(1)	/* 0=interlaced 1=progressive */
+#define SVC_MODE_SM_ON		BIT(0)	/* Enable color bars and tone gen */
+
+/* HDP Manual Control */
+#define HPD_MAN_CTRL_HPD_PULSE	BIT(7)	/* HPD Pulse low 110ms */
+#define HPD_MAN_CTRL_5VEN	BIT(2)	/* Output 5V */
+#define HPD_MAN_CTRL_HPD_B	BIT(1)	/* Assert HPD High for Input A */
+#define HPD_MAN_CTRL_HPD_A	BIT(0)	/* Assert HPD High for Input A */
+
+/* RT_MAN_CTRL */
+#define RT_MAN_CTRL_RT_AUTO	BIT(7)
+#define RT_MAN_CTRL_RT		BIT(6)
+#define RT_MAN_CTRL_RT_B	BIT(1)	/* enable TMDS pull-up on Input B */
+#define RT_MAN_CTRL_RT_A	BIT(0)	/* enable TMDS pull-up on Input A */
+
+/* VDP_CTRL */
+#define VDP_CTRL_COMPDEL_BP	BIT(5)	/* bypass compdel */
+#define VDP_CTRL_FORMATTER_BP	BIT(4)	/* bypass formatter */
+#define VDP_CTRL_PREFILTER_BP	BIT(1)	/* bypass prefilter */
+#define VDP_CTRL_MATRIX_BP	BIT(0)	/* bypass matrix conversion */
+
+/* REG_VHREF_CTRL */
+#define VHREF_INT_DET		BIT(7)	/* interlace detect: 1=alt 0=frame */
+#define VHREF_VSYNC_MASK	0x60
+#define VHREF_VSYNC_SHIFT	6
+#define VHREF_VSYNC_AUTO	0L
+#define VHREF_VSYNC_FDW		1L
+#define VHREF_VSYNC_EVEN	2L
+#define VHREF_VSYNC_ODD		3L
+#define VHREF_STD_DET_MASK	0x18
+#define VHREF_STD_DET_SHIFT	3
+#define VHREF_STD_DET_PAL	0L
+#define VHREF_STD_DET_NTSC	1L
+#define VHREF_STD_DET_AUTO	2L
+#define VHREF_STD_DET_OFF	3L
+#define VHREF_VREF_SRC_STD	BIT(2)	/* 1=from standard 0=manual */
+#define VHREF_HREF_SRC_STD	BIT(1)	/* 1=from standard 0=manual */
+#define VHREF_HSYNC_SEL_HS	BIT(0)	/* 1=HS 0=VS */
+
+/* AUDIO_OUT_ENABLE */
+#define AUDIO_OUT_ENABLE_ACLK	BIT(5)
+#define AUDIO_OUT_ENABLE_WS	BIT(4)
+#define AUDIO_OUT_ENABLE_AP3	BIT(3)
+#define AUDIO_OUT_ENABLE_AP2	BIT(2)
+#define AUDIO_OUT_ENABLE_AP1	BIT(1)
+#define AUDIO_OUT_ENABLE_AP0	BIT(0)
+
+/* Prefilter Control */
+#define FILTERS_CTRL_BU_MASK	0x0c
+#define FILTERS_CTRL_BU_SHIFT	2
+#define FILTERS_CTRL_RV_MASK	0x03
+#define FILTERS_CTRL_RV_SHIFT	0
+#define FILTERS_CTRL_OFF	0L	/* off */
+#define FILTERS_CTRL_2TAP	1L	/* 2 Taps */
+#define FILTERS_CTRL_7TAP	2L	/* 7 Taps */
+#define FILTERS_CTRL_2_7TAP	3L	/* 2/7 Taps */
+
+/* PCLK Configuration */
+#define PCLK_DELAY_MASK		0x70
+#define PCLK_DELAY_SHIFT	4	/* Pixel delay (-8..+7) */
+#define PCLK_INV_SHIFT		2
+#define PCLK_SEL_MASK		0x03	/* clock scaler */
+#define PCLK_SEL_SHIFT		0
+#define PCLK_SEL_X1		0L
+#define PCLK_SEL_X2		1L
+#define PCLK_SEL_DIV2		2L
+#define PCLK_SEL_DIV4		3L
+
+/* Pixel Repeater */
+#define PIX_REPEAT_MASK_UP_SEL	0x30
+#define PIX_REPEAT_MASK_REP	0x0f
+#define PIX_REPEAT_SHIFT	4
+#define PIX_REPEAT_CHROMA	1
+
+/* Page 0x01 - HDMI info and packets */
+#define REG_HDMI_FLAGS		0x0100
+#define REG_DEEP_COLOR_MODE	0x0101
+#define REG_AUDIO_FLAGS		0x0108
+#define REG_AUDIO_FREQ		0x0109
+#define REG_ACP_PACKET_TYPE	0x0141
+#define REG_ISRC1_PACKET_TYPE	0x0161
+#define REG_ISRC2_PACKET_TYPE	0x0181
+#define REG_GBD_PACKET_TYPE	0x01a1
+
+/* HDMI_FLAGS */
+#define HDMI_FLAGS_AUDIO	BIT(7)	/* Audio packet in last videoframe */
+#define HDMI_FLAGS_HDMI		BIT(6)	/* HDMI detected */
+#define HDMI_FLAGS_EESS		BIT(5)	/* EESS detected */
+#define HDMI_FLAGS_HDCP		BIT(4)	/* HDCP detected */
+#define HDMI_FLAGS_AVMUTE	BIT(3)	/* AVMUTE */
+#define HDMI_FLAGS_AUD_LAYOUT	BIT(2)	/* Layout status Audio sample packet */
+#define HDMI_FLAGS_AUD_FIFO_OF	BIT(1)	/* FIFO read/write pointers crossed */
+#define HDMI_FLAGS_AUD_FIFO_LOW	BIT(0)	/* FIFO read ptr within 2 of write */
+
+/* Page 0x12 - HDMI Extra control and debug */
+#define REG_CLK_CFG		0x1200
+#define REG_CLK_OUT_CFG		0x1201
+#define REG_CFG1		0x1202
+#define REG_CFG2		0x1203
+#define REG_WDL_CFG		0x1210
+#define REG_DELOCK_DELAY	0x1212
+#define REG_PON_OVR_EN		0x12A0
+#define REG_PON_CBIAS		0x12A1
+#define REG_PON_RESCAL		0x12A2
+#define REG_PON_RES		0x12A3
+#define REG_PON_CLK		0x12A4
+#define REG_PON_PLL		0x12A5
+#define REG_PON_EQ		0x12A6
+#define REG_PON_DES		0x12A7
+#define REG_PON_OUT		0x12A8
+#define REG_PON_MUX		0x12A9
+#define REG_MODE_REC_CFG1	0x12F8
+#define REG_MODE_REC_CFG2	0x12F9
+#define REG_MODE_REC_STS	0x12FA
+#define REG_AUDIO_LAYOUT	0x12D0
+
+#define PON_EN			1
+#define PON_DIS			0
+
+/* CLK CFG */
+#define CLK_CFG_INV_OUT_CLK	BIT(7)
+#define CLK_CFG_INV_BUS_CLK	BIT(6)
+#define CLK_CFG_SEL_ACLK_EN	BIT(1)
+#define CLK_CFG_SEL_ACLK	BIT(0)
+#define CLK_CFG_DIS		0
+
+/* Page 0x13 - HDMI Extra control and debug */
+#define REG_DEEP_COLOR_CTRL	0x1300
+#define REG_CGU_DBG_SEL		0x1305
+#define REG_HDCP_DDC_ADDR	0x1310
+#define REG_HDCP_KIDX		0x1316
+#define REG_DEEP_PLL7_BYP	0x1347
+#define REG_HDCP_DE_CTRL	0x1370
+#define REG_HDCP_EP_FILT_CTRL	0x1371
+#define REG_HDMI_CTRL		0x1377
+#define REG_HMTP_CTRL		0x137a
+#define REG_TIMER_D		0x13CF
+#define REG_SUS_SET_RGB0	0x13E1
+#define REG_SUS_SET_RGB1	0x13E2
+#define REG_SUS_SET_RGB2	0x13E3
+#define REG_SUS_SET_RGB3	0x13E4
+#define REG_SUS_SET_RGB4	0x13E5
+#define REG_MAN_SUS_HDMI_SEL	0x13E8
+#define REG_MAN_HDMI_SET	0x13E9
+#define REG_SUS_CLOCK_GOOD	0x13EF
+
+/* HDCP DE Control */
+#define HDCP_DE_MODE_MASK	0xc0	/* DE Measurement mode */
+#define HDCP_DE_MODE_SHIFT	6
+#define HDCP_DE_REGEN_EN	BIT(5)	/* enable regen mode */
+#define HDCP_DE_FILTER_MASK	0x18	/* DE filter sensitivity */
+#define HDCP_DE_FILTER_SHIFT	3
+#define HDCP_DE_COMP_MASK	0x07	/* DE Composition mode */
+#define HDCP_DE_COMP_MIXED	6L
+#define HDCP_DE_COMP_OR		5L
+#define HDCP_DE_COMP_AND	4L
+#define HDCP_DE_COMP_CH3	3L
+#define HDCP_DE_COMP_CH2	2L
+#define HDCP_DE_COMP_CH1	1L
+#define HDCP_DE_COMP_CH0	0L
+
+/* HDCP EP Filter Control */
+#define HDCP_EP_FIL_CTL_MASK	0x30
+#define HDCP_EP_FIL_CTL_SHIFT	4
+#define HDCP_EP_FIL_VS_MASK	0x0c
+#define HDCP_EP_FIL_VS_SHIFT	2
+#define HDCP_EP_FIL_HS_MASK	0x03
+#define HDCP_EP_FIL_HS_SHIFT	0
+
+/* HDMI_CTRL */
+#define HDMI_CTRL_MUTE_MASK	0x0c
+#define HDMI_CTRL_MUTE_SHIFT	2
+#define HDMI_CTRL_MUTE_AUTO	0L
+#define HDMI_CTRL_MUTE_OFF	1L
+#define HDMI_CTRL_MUTE_ON	2L
+#define HDMI_CTRL_HDCP_MASK	0x03
+#define HDMI_CTRL_HDCP_SHIFT	0
+#define HDMI_CTRL_HDCP_EESS	2L
+#define HDMI_CTRL_HDCP_OESS	1L
+#define HDMI_CTRL_HDCP_AUTO	0L
+
+/* CGU_DBG_SEL bits */
+#define CGU_DBG_CLK_SEL_MASK	0x18
+#define CGU_DBG_CLK_SEL_SHIFT	3
+#define CGU_DBG_XO_FRO_SEL	BIT(2)
+#define CGU_DBG_VDP_CLK_SEL	BIT(1)
+#define CGU_DBG_PIX_CLK_SEL	BIT(0)
+
+/* REG_MAN_SUS_HDMI_SEL / REG_MAN_HDMI_SET bits */
+#define MAN_DIS_OUT_BUF		BIT(7)
+#define MAN_DIS_ANA_PATH	BIT(6)
+#define MAN_DIS_HDCP		BIT(5)
+#define MAN_DIS_TMDS_ENC	BIT(4)
+#define MAN_DIS_TMDS_FLOW	BIT(3)
+#define MAN_RST_HDCP		BIT(2)
+#define MAN_RST_TMDS_ENC	BIT(1)
+#define MAN_RST_TMDS_FLOW	BIT(0)
+
+/* Page 0x14 - Audio Extra control and debug */
+#define REG_FIFO_LATENCY_VAL	0x1403
+#define REG_AUDIO_CLOCK		0x1411
+#define REG_TEST_NCTS_CTRL	0x1415
+#define REG_TEST_AUDIO_FREQ	0x1426
+#define REG_TEST_MODE		0x1437
+
+/* Audio Clock Configuration */
+#define AUDIO_CLOCK_PLL_PD	BIT(7)	/* powerdown PLL */
+#define AUDIO_CLOCK_SEL_MASK	0x7f
+#define AUDIO_CLOCK_SEL_16FS	0L	/* 16*fs */
+#define AUDIO_CLOCK_SEL_32FS	1L	/* 32*fs */
+#define AUDIO_CLOCK_SEL_64FS	2L	/* 64*fs */
+#define AUDIO_CLOCK_SEL_128FS	3L	/* 128*fs */
+#define AUDIO_CLOCK_SEL_256FS	4L	/* 256*fs */
+#define AUDIO_CLOCK_SEL_512FS	5L	/* 512*fs */
+
+/* Page 0x20: EDID and Hotplug Detect */
+#define REG_EDID_IN_BYTE0	0x2000 /* EDID base */
+#define REG_EDID_IN_VERSION	0x2080
+#define REG_EDID_ENABLE		0x2081
+#define REG_HPD_POWER		0x2084
+#define REG_HPD_AUTO_CTRL	0x2085
+#define REG_HPD_DURATION	0x2086
+#define REG_RX_HPD_HEAC		0x2087
+
+/* EDID_ENABLE */
+#define EDID_ENABLE_NACK_OFF	BIT(7)
+#define EDID_ENABLE_EDID_ONLY	BIT(6)
+#define EDID_ENABLE_B_EN	BIT(1)
+#define EDID_ENABLE_A_EN	BIT(0)
+
+/* HPD Power */
+#define HPD_POWER_BP_MASK	0x0c
+#define HPD_POWER_BP_SHIFT	2
+#define HPD_POWER_BP_LOW	0L
+#define HPD_POWER_BP_HIGH	1L
+#define HPD_POWER_EDID_ONLY	BIT(1)
+
+/* HPD Auto control */
+#define HPD_AUTO_READ_EDID	BIT(7)
+#define HPD_AUTO_HPD_F3TECH	BIT(5)
+#define HPD_AUTO_HP_OTHER	BIT(4)
+#define HPD_AUTO_HPD_UNSEL	BIT(3)
+#define HPD_AUTO_HPD_ALL_CH	BIT(2)
+#define HPD_AUTO_HPD_PRV_CH	BIT(1)
+#define HPD_AUTO_HPD_NEW_CH	BIT(0)
+
+/* Page 0x21 - EDID content */
+#define REG_EDID_IN_BYTE128	0x2100 /* CEA Extension block */
+#define REG_EDID_IN_SPA_SUB	0x2180
+#define REG_EDID_IN_SPA_AB_A	0x2181
+#define REG_EDID_IN_SPA_CD_A	0x2182
+#define REG_EDID_IN_CKSUM_A	0x2183
+#define REG_EDID_IN_SPA_AB_B	0x2184
+#define REG_EDID_IN_SPA_CD_B	0x2185
+#define REG_EDID_IN_CKSUM_B	0x2186
+
+/* Page 0x30 - NV Configuration */
+#define REG_RT_AUTO_CTRL	0x3000
+#define REG_EQ_MAN_CTRL0	0x3001
+#define REG_EQ_MAN_CTRL1	0x3002
+#define REG_OUTPUT_CFG		0x3003
+#define REG_MUTE_CTRL		0x3004
+#define REG_SLAVE_ADDR		0x3005
+#define REG_CMTP_REG6		0x3006
+#define REG_CMTP_REG7		0x3007
+#define REG_CMTP_REG8		0x3008
+#define REG_CMTP_REG9		0x3009
+#define REG_CMTP_REGA		0x300A
+#define REG_CMTP_REGB		0x300B
+#define REG_CMTP_REGC		0x300C
+#define REG_CMTP_REGD		0x300D
+#define REG_CMTP_REGE		0x300E
+#define REG_CMTP_REGF		0x300F
+#define REG_CMTP_REG10		0x3010
+#define REG_CMTP_REG11		0x3011
+
+/* Page 0x80 - CEC */
+#define REG_PWR_CONTROL		0x80F4
+#define REG_OSC_DIVIDER		0x80F5
+#define REG_EN_OSC_PERIOD_LSB	0x80F8
+#define REG_CONTROL		0x80FF
+
+/* global interrupt flags (INT_FLG_CRL_TOP) */
+#define INTERRUPT_AFE		BIT(7) /* AFE module */
+#define INTERRUPT_HDCP		BIT(6) /* HDCP module */
+#define INTERRUPT_AUDIO		BIT(5) /* Audio module */
+#define INTERRUPT_INFO		BIT(4) /* Infoframe module */
+#define INTERRUPT_MODE		BIT(3) /* HDMI mode module */
+#define INTERRUPT_RATE		BIT(2) /* rate module */
+#define INTERRUPT_DDC		BIT(1) /* DDC module */
+#define INTERRUPT_SUS		BIT(0) /* SUS module */
+
+/* INT_FLG_CLR_HDCP bits */
+#define MASK_HDCP_MTP		BIT(7) /* HDCP MTP busy */
+#define MASK_HDCP_DLMTP		BIT(4) /* HDCP end download MTP to SRAM */
+#define MASK_HDCP_DLRAM		BIT(3) /* HDCP end download keys from SRAM */
+#define MASK_HDCP_ENC		BIT(2) /* HDCP ENC */
+#define MASK_STATE_C5		BIT(1) /* HDCP State C5 reached */
+#define MASK_AKSV		BIT(0) /* AKSV received (start of auth) */
+
+/* INT_FLG_CLR_RATE bits */
+#define MASK_RATE_B_DRIFT	BIT(7) /* Rate measurement drifted */
+#define MASK_RATE_B_ST		BIT(6) /* Rate measurement stability change */
+#define MASK_RATE_B_ACT		BIT(5) /* Rate measurement activity change */
+#define MASK_RATE_B_PST		BIT(4) /* Rate measreument presence change */
+#define MASK_RATE_A_DRIFT	BIT(3) /* Rate measurement drifted */
+#define MASK_RATE_A_ST		BIT(2) /* Rate measurement stability change */
+#define MASK_RATE_A_ACT		BIT(1) /* Rate measurement presence change */
+#define MASK_RATE_A_PST		BIT(0) /* Rate measreument presence change */
+
+/* INT_FLG_CLR_SUS (Start Up Sequencer) bits */
+#define MASK_MPT		BIT(7) /* Config MTP end of process */
+#define MASK_FMT		BIT(5) /* Video format changed */
+#define MASK_RT_PULSE		BIT(4) /* End of termination resistance pulse */
+#define MASK_SUS_END		BIT(3) /* SUS last state reached */
+#define MASK_SUS_ACT		BIT(2) /* Activity of selected input changed */
+#define MASK_SUS_CH		BIT(1) /* Selected input changed */
+#define MASK_SUS_ST		BIT(0) /* SUS state changed */
+
+/* INT_FLG_CLR_DDC bits */
+#define MASK_EDID_MTP		BIT(7) /* EDID MTP end of process */
+#define MASK_DDC_ERR		BIT(6) /* master DDC error */
+#define MASK_DDC_CMD_DONE	BIT(5) /* master DDC cmd send correct */
+#define MASK_READ_DONE		BIT(4) /* End of down EDID read */
+#define MASK_RX_DDC_SW		BIT(3) /* Output DDC switching finished */
+#define MASK_HDCP_DDC_SW	BIT(2) /* HDCP DDC switching finished */
+#define MASK_HDP_PULSE_END	BIT(1) /* End of Hot Plug Detect pulse */
+#define MASK_DET_5V		BIT(0) /* Detection of +5V */
+
+/* INT_FLG_CLR_MODE bits */
+#define MASK_HDMI_FLG		BIT(7) /* HDMI mode/avmute/encrypt/FIFO fail */
+#define MASK_GAMUT		BIT(6) /* Gamut packet */
+#define MASK_ISRC2		BIT(5) /* ISRC2 packet */
+#define MASK_ISRC1		BIT(4) /* ISRC1 packet */
+#define MASK_ACP		BIT(3) /* Audio Content Protection packet */
+#define MASK_DC_NO_GCP		BIT(2) /* GCP not received in 5 frames */
+#define MASK_DC_PHASE		BIT(1) /* deepcolor pixel phase needs update */
+#define MASK_DC_MODE		BIT(0) /* deepcolor color depth changed */
+
+/* INT_FLG_CLR_INFO bits (Infoframe Change Status) */
+#define MASK_MPS_IF		BIT(6) /* MPEG Source Product */
+#define MASK_AUD_IF		BIT(5) /* Audio */
+#define MASK_SPD_IF		BIT(4) /* Source Product Descriptor */
+#define MASK_AVI_IF		BIT(3) /* Auxiliary Video IF */
+#define MASK_VS_IF_OTHER_BK2	BIT(2) /* Vendor Specific (bank2) */
+#define MASK_VS_IF_OTHER_BK1	BIT(1) /* Vendor Specific (bank1) */
+#define MASK_VS_IF_HDMI		BIT(0) /* Vendor Specific (w/ HDMI LLC code) */
+
+/* INT_FLG_CLR_AUDIO bits */
+#define MASK_AUDIO_FREQ_FLG	BIT(5) /* Audio freq change */
+#define MASK_AUDIO_FLG		BIT(4) /* DST, OBA, HBR, ASP change */
+#define MASK_MUTE_FLG		BIT(3) /* Audio Mute */
+#define MASK_CH_STATE		BIT(2) /* Channel status */
+#define MASK_UNMUTE_FIFO	BIT(1) /* Audio Unmute */
+#define MASK_ERROR_FIFO_PT	BIT(0) /* Audio FIFO pointer error */
+
+/* INT_FLG_CLR_AFE bits */
+#define MASK_AFE_WDL_UNLOCKED	BIT(7) /* Wordlocker was unlocked */
+#define MASK_AFE_GAIN_DONE	BIT(6) /* Gain calibration done */
+#define MASK_AFE_OFFSET_DONE	BIT(5) /* Offset calibration done */
+#define MASK_AFE_ACTIVITY_DET	BIT(4) /* Activity detected on data */
+#define MASK_AFE_PLL_LOCK	BIT(3) /* TMDS PLL is locked */
+#define MASK_AFE_TRMCAL_DONE	BIT(2) /* Termination calibration done */
+#define MASK_AFE_ASU_STATE	BIT(1) /* ASU state is reached */
+#define MASK_AFE_ASU_READY	BIT(0) /* AFE calibration done: TMDS ready */
+
+/* Audio Output */
+#define AUDCFG_CLK_INVERT	BIT(7)	/* invert A_CLK polarity */
+#define AUDCFG_TEST_TONE	BIT(6)	/* enable test tone generator */
+#define AUDCFG_BUS_SHIFT	5
+#define AUDCFG_BUS_I2S		0L
+#define AUDCFG_BUS_SPDIF	1L
+#define AUDCFG_I2SW_SHIFT	4
+#define AUDCFG_I2SW_16		0L
+#define AUDCFG_I2SW_32		1L
+#define AUDCFG_AUTO_MUTE_EN	BIT(3)	/* Enable Automatic audio mute */
+#define AUDCFG_HBR_SHIFT	2
+#define AUDCFG_HBR_STRAIGHT	0L	/* straight via AP0 */
+#define AUDCFG_HBR_DEMUX	1L	/* demuxed via AP0:AP3 */
+#define AUDCFG_TYPE_MASK	0x03
+#define AUDCFG_TYPE_SHIFT	0
+#define AUDCFG_TYPE_DST		3L	/* Direct Stream Transfer (DST) */
+#define AUDCFG_TYPE_OBA		2L	/* One Bit Audio (OBA) */
+#define AUDCFG_TYPE_HBR		1L	/* High Bit Rate (HBR) */
+#define AUDCFG_TYPE_PCM		0L	/* Audio samples */
+
+/* Video Formatter */
+#define OF_VP_ENABLE		BIT(7)	/* VP[35:0]/HS/VS/DE/CLK */
+#define OF_BLK			BIT(4)	/* blanking codes */
+#define OF_TRC			BIT(3)	/* timing codes (SAV/EAV) */
+#define OF_FMT_MASK		0x3
+#define OF_FMT_444		0L	/* RGB444/YUV444 */
+#define OF_FMT_422_SMPT		1L	/* YUV422 semi-planar */
+#define OF_FMT_422_CCIR		2L	/* YUV422 CCIR656 */
+
+/* HS/HREF output control */
+#define HS_HREF_DELAY_MASK	0xf0
+#define HS_HREF_DELAY_SHIFT	4	/* Pixel delay (-8..+7) */
+#define HS_HREF_PXQ_SHIFT	3	/* Timing codes from HREF */
+#define HS_HREF_INV_SHIFT	2	/* polarity (1=invert) */
+#define HS_HREF_SEL_MASK	0x03
+#define HS_HREF_SEL_SHIFT	0
+#define HS_HREF_SEL_HS_VHREF	0L	/* HS from VHREF */
+#define HS_HREF_SEL_HREF_VHREF	1L	/* HREF from VHREF */
+#define HS_HREF_SEL_HREF_HDMI	2L	/* HREF from HDMI */
+#define HS_HREF_SEL_NONE	3L	/* not generated */
+
+/* VS output control */
+#define VS_VREF_DELAY_MASK	0xf0
+#define VS_VREF_DELAY_SHIFT	4	/* Pixel delay (-8..+7) */
+#define VS_VREF_INV_SHIFT	2	/* polarity (1=invert) */
+#define VS_VREF_SEL_MASK	0x03
+#define VS_VREF_SEL_SHIFT	0
+#define VS_VREF_SEL_VS_VHREF	0L	/* VS from VHREF */
+#define VS_VREF_SEL_VREF_VHREF	1L	/* VREF from VHREF */
+#define VS_VREF_SEL_VREF_HDMI	2L	/* VREF from HDMI */
+#define VS_VREF_SEL_NONE	3L	/* not generated */
+
+/* DE/FREF output control */
+#define DE_FREF_DELAY_MASK	0xf0
+#define DE_FREF_DELAY_SHIFT	4	/* Pixel delay (-8..+7) */
+#define DE_FREF_DE_PXQ_SHIFT	3	/* Timing codes from DE */
+#define DE_FREF_INV_SHIFT	2	/* polarity (1=invert) */
+#define DE_FREF_SEL_MASK	0x03
+#define DE_FREF_SEL_SHIFT	0
+#define DE_FREF_SEL_DE_VHREF	0L	/* DE from VHREF (HREF and not(VREF) */
+#define DE_FREF_SEL_FREF_VHREF	1L	/* FREF from VHREF */
+#define DE_FREF_SEL_FREF_HDMI	2L	/* FREF from HDMI */
+#define DE_FREF_SEL_NONE	3L	/* not generated */
+
+/* HDMI_SOFT_RST bits */
+#define RESET_DC		BIT(7)	/* Reset deep color module */
+#define RESET_HDCP		BIT(6)	/* Reset HDCP module */
+#define RESET_KSV		BIT(5)	/* Reset KSV-FIFO */
+#define RESET_SCFG		BIT(4)	/* Reset HDCP and repeater function */
+#define RESET_HCFG		BIT(3)	/* Reset HDCP DDC part */
+#define RESET_PA		BIT(2)	/* Reset polarity adjust */
+#define RESET_EP		BIT(1)	/* Reset Error protection */
+#define RESET_TMDS		BIT(0)	/* Reset TMDS (calib, encoding, flow) */
+
+/* HDMI_INFO_RST bits */
+#define NACK_HDCP		BIT(7)	/* No ACK on HDCP request */
+#define RESET_FIFO		BIT(4)	/* Reset Audio FIFO control */
+#define RESET_GAMUT		BIT(3)	/* Clear Gamut packet */
+#define RESET_AI		BIT(2)	/* Clear ACP and ISRC packets */
+#define RESET_IF		BIT(1)	/* Clear all Audio infoframe packets */
+#define RESET_AUDIO		BIT(0)	/* Reset Audio FIFO control */
+
+/* HDCP_BCAPS bits */
+#define HDCP_HDMI		BIT(7)	/* HDCP suports HDMI (vs DVI only) */
+#define HDCP_REPEATER		BIT(6)	/* HDCP supports repeater function */
+#define HDCP_READY		BIT(5)	/* set by repeater function */
+#define HDCP_FAST		BIT(4)	/* Up to 400kHz */
+#define HDCP_11			BIT(1)	/* HDCP 1.1 supported */
+#define HDCP_FAST_REAUTH	BIT(0)	/* fast reauthentication supported */
+
+/* Audio output formatter */
+#define AUDIO_LAYOUT_SP_FLAG	BIT(2)	/* sp flag used by FIFO */
+#define AUDIO_LAYOUT_MANUAL	BIT(1)	/* manual layout (vs per pkt) */
+#define AUDIO_LAYOUT_LAYOUT1	BIT(0)  /* Layout1: AP0-3 vs Layout0:AP0 */
+
+/* masks for interrupt status registers */
+#define MASK_SUS_STATUS		0x1F
+#define LAST_STATE_REACHED	0x1B
+#define MASK_CLK_STABLE		0x04
+#define MASK_CLK_ACTIVE		0x02
+#define MASK_SUS_STATE		0x10
+#define MASK_SR_FIFO_FIFO_CTRL	0x30
+#define MASK_AUDIO_FLAG		0x10
+
+/* Rate measurement */
+#define RATE_REFTIM_ENABLE	0x01
+#define CLK_MIN_RATE		0x0057e4
+#define CLK_MAX_RATE		0x0395f8
+#define WDL_CFG_VAL		0x82
+#define DC_FILTER_VAL		0x31
+
+/* Infoframe */
+#define VS_HDMI_IF_UPDATE	0x0200
+#define VS_HDMI_IF		0x0201
+#define VS_BK1_IF_UPDATE	0x0220
+#define VS_BK1_IF		0x0221
+#define VS_BK2_IF_UPDATE	0x0240
+#define VS_BK2_IF		0x0241
+#define AVI_IF_UPDATE		0x0260
+#define AVI_IF			0x0261
+#define SPD_IF_UPDATE		0x0280
+#define SPD_IF			0x0281
+#define AUD_IF_UPDATE		0x02a0
+#define AUD_IF			0x02a1
+#define MPS_IF_UPDATE		0x02c0
+#define MPS_IF			0x02c1
+
+/* Audio formats */
+static const char * const audtype_names[] = {
+	"PCM",			/* PCM Samples */
+	"HBR",			/* High Bit Rate Audio */
+	"OBA",			/* One-Bit Audio */
+	"DST"			/* Direct Stream Transfer */
+};
+
+/* Audio output port formats */
+enum audfmt_types {
+	AUDFMT_TYPE_DISABLED = 0,
+	AUDFMT_TYPE_I2S,
+	AUDFMT_TYPE_SPDIF,
+};
+static const char * const audfmt_names[] = {
+	"disabled",
+	"I2S",
+	"SPDIF",
+};
+
+/* Video output port formats */
+static const char * const vidfmt_names[] = {
+	"RGB444/YUV444",	/* RGB/YUV444 16bit data bus, 8bpp */
+	"YUV422 semi-planar",	/* YUV422 16bit data base, 8bpp */
+	"YUV422 CCIR656",	/* BT656 (YUV 8bpp 2 clock per pixel) */
+	"invalid",
+};
+
+/*
+ * Video Output formats
+ * There are 24 video output pins on TDA19971 and 36 on TDA19973 supporting
+ * the following output formats:
+ * - RGB444
+ * - YUV444
+ * - YUV422 semi-planar based on ITU-R BT.601
+ * - YUV422 ITU-R BT.656
+ *
+ * TDA19971 can output 3x8bits per pixel
+ * TDA19973 can output 3x8, 3x10, or 3x12bit per pixel
+ *
+ * Deep color modes (3x10 or 3x12 bits) are possible in any case.
+ *
+ * Reference: NXP AN1206 - TDA19971_TDA19973 receiver HW recommendation: 3.3.4
+ */
+static u32 tda19971_video_formats[] = {
+	/* 24bit RGB444: 1 pixel in 1x24bit sample: VP[23:0] */
+	MEDIA_BUS_FMT_RGB888_1X24,
+	/* 24bit YUV444: 1 pixel in 1x24bit sample: VP[23:0] */
+	MEDIA_BUS_FMT_YUV8_1X24,
+	/* 24bit YUV422: 1 pixel in 1x24bit sample: VP[23:12]/VP[11:0] */
+	MEDIA_BUS_FMT_UYVY12_1X24,
+	/* 20bit YUV422: 1 pixel in 1x20bit sample: VP[23:14]/VP[11:2] */
+	MEDIA_BUS_FMT_UYVY10_1X20,
+	/* 16bit YUV422: 1 pixel in 1x16bit sample: VP[23:16]/VP[15:8] */
+	MEDIA_BUS_FMT_UYVY8_1X16,
+	/* 12bit CCIR656: 1 pixel in 2x12bit samples: VP[23:12] */
+	MEDIA_BUS_FMT_UYVY12_2X12,
+	/* 10bit CCIR656: 1 pixel in 2x10bit samples: VP[23:14] */
+	MEDIA_BUS_FMT_UYVY10_2X10,
+	/* 8bit CCIR656: 1 pixel in 2x8bit samples: VP[23:16] */
+	MEDIA_BUS_FMT_UYVY8_2X8,
+};
+static u32 tda19973_video_formats[] = {
+	/* 36bit RGB444: 1 pixel in 1x36bit sample on VP[35:0] */
+	MEDIA_BUS_FMT_RGB121212_1X36,
+	/* 36bit YUV444 1 pixel in 1x36bit sample on VP[35:0] */
+	MEDIA_BUS_FMT_YUV12_1X36,
+	/* 24bit YUV422: 1 pixel in 1x24bit sample on VP[35:24]/VP[11:0]  */
+	MEDIA_BUS_FMT_UYVY12_1X24,
+	/* 12bit CCIR656: 1 pixel in 2x12bit samples on VP[11:0] */
+	MEDIA_BUS_FMT_UYVY12_2X12,
+};
+
+/*
+ * Colorspace conversion matricies
+ */
+struct color_matrix_coefs {
+	const char *name;
+	/* Input offsets */
+	s16 offint1;
+	s16 offint2;
+	s16 offint3;
+	/* Coeficients */
+	s16 p11coef;
+	s16 p12coef;
+	s16 p13coef;
+	s16 p21coef;
+	s16 p22coef;
+	s16 p23coef;
+	s16 p31coef;
+	s16 p32coef;
+	s16 p33coef;
+	/* Output offsets */
+	s16 offout1;
+	s16 offout2;
+	s16 offout3;
+};
+
+enum {
+	ITU709_RGBLIMITED,
+	ITU709_RGBFULL,
+	ITU601_RGBLIMITED,
+	ITU601_RGBFULL,
+	RGBLIMITED_RGBFULL,
+	RGBLIMITED_ITU601,
+	RGBFULL_ITU601,
+};
+
+/* NB: 4096 is 1.0 using fixed point numbers */
+static const struct color_matrix_coefs conv_matrix[] = {
+	{
+		"YUV709 -> RGB limited",
+		 -256, -2048,  -2048,
+		 4096, -1875,   -750,
+		 4096,  6307,      0,
+		 4096,     0,   7431,
+		  256,   256,    256,
+	},
+	{
+		"YUV709 -> RGB full",
+		 -256, -2048,  -2048,
+		 4769, -2183,   -873,
+		 4769,  7343,      0,
+		 4769,     0,   8652,
+		    0,     0,      0,
+	},
+	{
+		"YUV601 -> RGB limited",
+		 -256, -2048,  -2048,
+		 4096, -2860,  -1378,
+		 4096,  5615,      0,
+		 4096,     0,   7097,
+		  256,   256,    256,
+	},
+	{
+		"YUV601 -> RGB full",
+		 -256, -2048,  -2048,
+		 4769, -3330,  -1602,
+		 4769,  6538,      0,
+		 4769,     0,   8264,
+		  256,   256,    256,
+	},
+	{
+		"RGB limited -> RGB full",
+		 -256,  -256,   -256,
+		    0,  4769,      0,
+		    0,     0,   4769,
+		 4769,     0,      0,
+		    0,     0,      0,
+	},
+	{
+		"RGB limited -> ITU601",
+		 -256,  -256,   -256,
+		 2404,  1225,    467,
+		-1754,  2095,   -341,
+		-1388,  -707,   2095,
+		  256,  2048,   2048,
+	},
+	{
+		"RGB full -> ITU601",
+		    0,     0,      0,
+		 2065,  1052,    401,
+		-1506,  1799,   -293,
+		-1192,  -607,   1799,
+		  256,  2048,   2048,
+	},
+};
+
+static const struct v4l2_dv_timings_cap tda1997x_dv_timings_cap = {
+	.type = V4L2_DV_BT_656_1120,
+	/* keep this initialization for compatibility with GCC < 4.4.6 */
+	.reserved = { 0 },
+
+	V4L2_INIT_BT_TIMINGS(
+		640, 1920,			/* min/max width */
+		480, 1080,			/* min/max height */
+		13000000, 165000000,		/* min/max pixelclock */
+		V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT, /* standards */
+		V4L2_DV_BT_CAP_PROGRESSIVE	/* capabilities */
+	)
+};
+
+/*
+ * Video Input formats
+ */
+static const struct v4l2_dv_timings tda1997x_hdmi_modes[] = {
+	V4L2_DV_BT_DMT_640X350P85,
+	V4L2_DV_BT_DMT_640X400P85,
+	V4L2_DV_BT_DMT_640X480P60,
+	V4L2_DV_BT_DMT_640X480P72,
+	V4L2_DV_BT_DMT_640X480P75,
+	V4L2_DV_BT_DMT_720X400P85,
+	V4L2_DV_BT_CEA_720X480I59_94,
+	V4L2_DV_BT_CEA_720X480P59_94,
+	V4L2_DV_BT_CEA_720X576I50,
+	V4L2_DV_BT_CEA_720X576P50,
+	V4L2_DV_BT_DMT_800X600P60,
+	V4L2_DV_BT_DMT_800X600P72,
+	V4L2_DV_BT_DMT_800X600P75,
+	V4L2_DV_BT_DMT_800X600P85,
+	V4L2_DV_BT_DMT_1024X768P60,
+	V4L2_DV_BT_DMT_1024X768P70,
+	V4L2_DV_BT_DMT_1024X768P75,
+	V4L2_DV_BT_DMT_1024X768P85,
+	V4L2_DV_BT_CEA_1280X720P24,
+	V4L2_DV_BT_CEA_1280X720P25,
+	V4L2_DV_BT_CEA_1280X720P30,
+	V4L2_DV_BT_CEA_1280X720P50,
+	V4L2_DV_BT_CEA_1280X720P60,
+	V4L2_DV_BT_DMT_1280X768P60_RB,
+	V4L2_DV_BT_DMT_1280X768P75,
+	V4L2_DV_BT_DMT_1280X768P85,
+	V4L2_DV_BT_DMT_1280X960P60,
+	V4L2_DV_BT_DMT_1280X1024P60,
+	V4L2_DV_BT_DMT_1280X1024P85,
+	V4L2_DV_BT_DMT_1280X1024P75,
+	V4L2_DV_BT_DMT_1360X768P60,
+	V4L2_DV_BT_DMT_1440X900P60,
+	V4L2_DV_BT_DMT_1400X1050P60_RB,
+	V4L2_DV_BT_DMT_1400X1050P60,
+	V4L2_DV_BT_DMT_1600X1200P60,
+	V4L2_DV_BT_DMT_1680X1050P60_RB,
+	V4L2_DV_BT_CEA_1920X1080P24,
+	V4L2_DV_BT_CEA_1920X1080P25,
+	V4L2_DV_BT_CEA_1920X1080P30,
+	V4L2_DV_BT_CEA_1920X1080I50,
+	V4L2_DV_BT_CEA_1920X1080P50,
+	V4L2_DV_BT_CEA_1920X1080I60,
+	V4L2_DV_BT_CEA_1920X1080P60,
+	V4L2_DV_BT_DMT_1920X1200P60_RB,
+};
+
+/* regulator supplies */
+static const char * const tda1997x_supply_name[] = {
+	"DOVDD", /* Digital I/O supply */
+	"DVDD",  /* Digital Core supply */
+	"AVDD",  /* Analog supply */
+};
+
+#define TDA1997X_NUM_SUPPLIES ARRAY_SIZE(tda1997x_supply_name)
+
+enum tda1997x_type {
+	TDA19971,
+	TDA19973,
+};
+
+enum tda1997x_hdmi_pads {
+	TDA1997X_PAD_SOURCE,
+	TDA1997X_NUM_PADS,
+};
+
+struct tda1997x_chip_info {
+	enum tda1997x_type type;
+	const char *name;
+	const u32 *formats;
+	unsigned int nformats;
+};
+
+struct tda1997x_state {
+	const struct tda1997x_chip_info *info;
+	struct tda1997x_platform_data pdata;
+	struct i2c_client *client;
+	struct i2c_client *client_cec;
+	struct v4l2_subdev sd;
+	struct regulator_bulk_data supplies[TDA1997X_NUM_SUPPLIES];
+	struct media_pad pads[TDA1997X_NUM_PADS];
+	struct mutex lock;
+	struct mutex page_lock;
+	char page;
+
+	/* detected info from chip */
+	int chip_revision;
+	char port_30bit;
+	char output_2p5;
+	char tmdsb_clk;
+	char tmdsb_soc;
+
+	/* status info */
+	char hdmi_status;
+	char mptrw_in_progress;
+	char state_c5_reached;
+	char activity_status;
+	char input_detect[2];
+
+	/* video */
+	enum hdmi_colorspace colorspace;
+	enum hdmi_colorimetry colorimetry;
+	enum hdmi_quantization_range range;
+	enum hdmi_content_type content;
+	struct v4l2_dv_timings timings;
+	const struct v4l2_dv_timings *detected_timings;
+	int fps;
+	const struct color_matrix_coefs *conv;
+	u32 code;
+	enum v4l2_mbus_type bus_type;
+	u8 vid_fmt;
+
+	/* controls */
+	struct v4l2_ctrl_handler hdl;
+	struct v4l2_ctrl *detect_tx_5v_ctrl;
+	struct v4l2_ctrl *rgb_quantization_range_ctrl;
+
+	/* audio */
+	u8  audio_ch_alloc;
+	int audio_samplerate;
+	int audio_channels;
+	int audio_samplesize;
+	int audio_type;
+	struct mutex audio_lock;
+	struct snd_pcm_substream *audio_stream;
+
+	/* EDID */
+	struct {
+		u8 edid[256];
+		u32 present;
+		unsigned int blocks;
+	} edid;
+	struct delayed_work delayed_work_enable_hpd;
+};
+
+static const struct v4l2_event tda1997x_ev_fmt = {
+	.type = V4L2_EVENT_SOURCE_CHANGE,
+	.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
+};
+
+static const struct tda1997x_chip_info tda1997x_chip_info[] = {
+	[TDA19971] = {
+		.type = TDA19971,
+		.name = "tda19971",
+		.formats = tda19971_video_formats,
+		.nformats = ARRAY_SIZE(tda19971_video_formats),
+	},
+	[TDA19973] = {
+		.type = TDA19973,
+		.name = "tda19973",
+		.formats = tda19973_video_formats,
+		.nformats = ARRAY_SIZE(tda19973_video_formats),
+	},
+};
+
+static inline struct tda1997x_state *to_state(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct tda1997x_state, sd);
+}
+
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+	return &container_of(ctrl->handler, struct tda1997x_state, hdl)->sd;
+}
+
+static int tda1997x_cec_read(struct v4l2_subdev *sd, u8 reg)
+{
+	struct tda1997x_state *state = to_state(sd);
+	int val;
+
+	val = i2c_smbus_read_byte_data(state->client_cec, reg);
+	if (val < 0) {
+		v4l_err(state->client, "read reg error: reg=%2x\n", reg);
+		val = -1;
+	}
+
+	return val;
+}
+
+static int tda1997x_cec_write(struct v4l2_subdev *sd, u8 reg, u8 val)
+{
+	struct tda1997x_state *state = to_state(sd);
+	int ret = 0;
+
+	ret = i2c_smbus_write_byte_data(state->client_cec, reg, val);
+	if (ret < 0) {
+		v4l_err(state->client, "write reg error:reg=%2x,val=%2x\n",
+			reg, val);
+		ret = -1;
+	}
+
+	return ret;
+}
+
+/* -----------------------------------------------------------------------------
+ * I2C transfer
+ */
+
+static int tda1997x_setpage(struct v4l2_subdev *sd, u8 page)
+{
+	struct tda1997x_state *state = to_state(sd);
+	int ret;
+
+	if (state->page != page) {
+		ret = i2c_smbus_write_byte_data(state->client,
+			REG_CURPAGE_00H, page);
+		if (ret < 0) {
+			v4l_err(state->client,
+				"write reg error:reg=%2x,val=%2x\n",
+				REG_CURPAGE_00H, page);
+			return ret;
+		}
+		state->page = page;
+	}
+	return 0;
+}
+
+static inline int io_read(struct v4l2_subdev *sd, u16 reg)
+{
+	struct tda1997x_state *state = to_state(sd);
+	int val;
+
+	mutex_lock(&state->page_lock);
+	if (tda1997x_setpage(sd, reg >> 8)) {
+		val = -1;
+		goto out;
+	}
+
+	val = i2c_smbus_read_byte_data(state->client, reg&0xff);
+	if (val < 0) {
+		v4l_err(state->client, "read reg error: reg=%2x\n", reg & 0xff);
+		val = -1;
+		goto out;
+	}
+
+out:
+	mutex_unlock(&state->page_lock);
+	return val;
+}
+
+static inline long io_read16(struct v4l2_subdev *sd, u16 reg)
+{
+	u8 val;
+	long lval = 0;
+
+	val = io_read(sd, reg);
+	if (val < 0)
+		return val;
+	lval |= (val << 8);
+	val = io_read(sd, reg + 1);
+	if (val < 0)
+		return val;
+	lval |= val;
+
+	return lval;
+}
+
+static inline long io_read24(struct v4l2_subdev *sd, u16 reg)
+{
+	u8 val;
+	long lval = 0;
+
+	val = io_read(sd, reg);
+	if (val < 0)
+		return val;
+	lval |= (val << 16);
+	val = io_read(sd, reg + 1);
+	if (val < 0)
+		return val;
+	lval |= (val << 8);
+	val = io_read(sd, reg + 2);
+	if (val < 0)
+		return val;
+	lval |= val;
+
+	return lval;
+}
+
+static unsigned int io_readn(struct v4l2_subdev *sd, u16 reg, u8 len, u8 *data)
+{
+	int i;
+	int sz = 0;
+	u8 val;
+
+	for (i = 0; i < len; i++) {
+		val = io_read(sd, reg + i);
+		if (val < 0)
+			break;
+		data[i] = val;
+		sz++;
+	}
+
+	return sz;
+}
+
+static int io_write(struct v4l2_subdev *sd, u16 reg, u8 val)
+{
+	struct tda1997x_state *state = to_state(sd);
+	s32 ret = 0;
+
+	mutex_lock(&state->page_lock);
+	if (tda1997x_setpage(sd, reg >> 8)) {
+		ret = -1;
+		goto out;
+	}
+
+	ret = i2c_smbus_write_byte_data(state->client, reg & 0xff, val);
+	if (ret < 0) {
+		v4l_err(state->client, "write reg error:reg=%2x,val=%2x\n",
+			reg&0xff, val);
+		ret = -1;
+		goto out;
+	}
+
+out:
+	mutex_unlock(&state->page_lock);
+	return ret;
+}
+
+static int io_write16(struct v4l2_subdev *sd, u16 reg, u16 val)
+{
+	int ret;
+
+	ret = io_write(sd, reg, (val >> 8) & 0xff);
+	if (ret < 0)
+		return ret;
+	ret = io_write(sd, reg + 1, val & 0xff);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
+static int io_write24(struct v4l2_subdev *sd, u16 reg, u32 val)
+{
+	int ret;
+
+	ret = io_write(sd, reg, (val >> 16) & 0xff);
+	if (ret < 0)
+		return ret;
+	ret = io_write(sd, reg + 1, (val >> 8) & 0xff);
+	if (ret < 0)
+		return ret;
+	ret = io_write(sd, reg + 2, val & 0xff);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * Hotplug
+ */
+
+enum hpd_mode {
+	HPD_LOW_BP,	/* HPD low and pulse of at least 100ms */
+	HPD_LOW_OTHER,	/* HPD low and pulse of at least 100ms */
+	HPD_HIGH_BP,	/* HIGH */
+	HPD_HIGH_OTHER,
+	HPD_PULSE,	/* HPD low pulse */
+};
+
+/* manual HPD (Hot Plug Detect) control */
+static int tda1997x_manual_hpd(struct v4l2_subdev *sd, enum hpd_mode mode)
+{
+	u8 hpd_auto, hpd_pwr, hpd_man;
+
+	hpd_auto = io_read(sd, REG_HPD_AUTO_CTRL);
+	hpd_pwr = io_read(sd, REG_HPD_POWER);
+	hpd_man = io_read(sd, REG_HPD_MAN_CTRL);
+
+	/* mask out unused bits */
+	hpd_man &= (HPD_MAN_CTRL_HPD_PULSE |
+		    HPD_MAN_CTRL_5VEN |
+		    HPD_MAN_CTRL_HPD_B |
+		    HPD_MAN_CTRL_HPD_A);
+
+	switch (mode) {
+	/* HPD low and pulse of at least 100ms */
+	case HPD_LOW_BP:
+		/* hpd_bp=0 */
+		hpd_pwr &= ~HPD_POWER_BP_MASK;
+		/* disable HPD_A and HPD_B */
+		hpd_man &= ~(HPD_MAN_CTRL_HPD_A | HPD_MAN_CTRL_HPD_B);
+		io_write(sd, REG_HPD_POWER, hpd_pwr);
+		io_write(sd, REG_HPD_MAN_CTRL, hpd_man);
+		break;
+	/* HPD high */
+	case HPD_HIGH_BP:
+		/* hpd_bp=1 */
+		hpd_pwr &= ~HPD_POWER_BP_MASK;
+		hpd_pwr |= 1 << HPD_POWER_BP_SHIFT;
+		io_write(sd, REG_HPD_POWER, hpd_pwr);
+		break;
+	/* HPD low and pulse of at least 100ms */
+	case HPD_LOW_OTHER:
+		/* disable HPD_A and HPD_B */
+		hpd_man &= ~(HPD_MAN_CTRL_HPD_A | HPD_MAN_CTRL_HPD_B);
+		/* hp_other=0 */
+		hpd_auto &= ~HPD_AUTO_HP_OTHER;
+		io_write(sd, REG_HPD_AUTO_CTRL, hpd_auto);
+		io_write(sd, REG_HPD_MAN_CTRL, hpd_man);
+		break;
+	/* HPD high */
+	case HPD_HIGH_OTHER:
+		hpd_auto |= HPD_AUTO_HP_OTHER;
+		io_write(sd, REG_HPD_AUTO_CTRL, hpd_auto);
+		break;
+	/* HPD low pulse */
+	case HPD_PULSE:
+		/* disable HPD_A and HPD_B */
+		hpd_man &= ~(HPD_MAN_CTRL_HPD_A | HPD_MAN_CTRL_HPD_B);
+		io_write(sd, REG_HPD_MAN_CTRL, hpd_man);
+		break;
+	}
+
+	return 0;
+}
+
+static void tda1997x_delayed_work_enable_hpd(struct work_struct *work)
+{
+	struct delayed_work *dwork = to_delayed_work(work);
+	struct tda1997x_state *state = container_of(dwork,
+						    struct tda1997x_state,
+						    delayed_work_enable_hpd);
+	struct v4l2_subdev *sd = &state->sd;
+
+	v4l2_dbg(2, debug, sd, "%s:\n", __func__);
+
+	/* Set HPD high */
+	tda1997x_manual_hpd(sd, HPD_HIGH_OTHER);
+	tda1997x_manual_hpd(sd, HPD_HIGH_BP);
+
+	state->edid.present = 1;
+}
+
+static void tda1997x_disable_edid(struct v4l2_subdev *sd)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	v4l2_dbg(1, debug, sd, "%s\n", __func__);
+	cancel_delayed_work_sync(&state->delayed_work_enable_hpd);
+
+	/* Set HPD low */
+	tda1997x_manual_hpd(sd, HPD_LOW_BP);
+}
+
+static void tda1997x_enable_edid(struct v4l2_subdev *sd)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	v4l2_dbg(1, debug, sd, "%s\n", __func__);
+
+	/* Enable hotplug after 100ms */
+	schedule_delayed_work(&state->delayed_work_enable_hpd, HZ / 10);
+}
+
+/* -----------------------------------------------------------------------------
+ * Signal Control
+ */
+
+/*
+ * The color conversion matrix will convert between the colorimetry of the
+ * HDMI input to the desired output format RGB|YUV. RGB output is to be
+ * full-range and YUV is to be limited range.
+ *
+ * RGB full-range uses values from 0 to 255 which is recommended on a monitor
+ * and RGB Limitted uses values from 16 to 236 (16=black, 235=white) which is
+ * typically recommended on a TV.
+ */
+static int
+tda1997x_configure_csc(struct v4l2_subdev *sd)
+{
+	struct tda1997x_state *state = to_state(sd);
+	/* Blanking code values depend on output colorspace (RGB or YUV) */
+	struct blanking_codes {
+		s16 code_gy;
+		s16 code_bu;
+		s16 code_rv;
+	};
+	static const struct blanking_codes rgb_blanking = { 64, 64, 64 };
+	static const struct blanking_codes yuv_blanking = { 64, 512, 512 };
+	const struct blanking_codes *blanking_codes = NULL;
+	u8 reg;
+
+	v4l_dbg(1, debug, state->client, "%s\n", __func__);
+	state->conv = NULL;
+	switch (state->vid_fmt) {
+	/* RGB output */
+	case OF_FMT_444:
+		blanking_codes = &rgb_blanking;
+		if (state->colorspace == HDMI_COLORSPACE_RGB) {
+			if (state->range == HDMI_QUANTIZATION_RANGE_LIMITED)
+				state->conv = &conv_matrix[RGBLIMITED_RGBFULL];
+		} else {
+			if (state->colorimetry == HDMI_COLORIMETRY_ITU_709)
+				state->conv = &conv_matrix[ITU709_RGBFULL];
+			else if (state->colorimetry == HDMI_COLORIMETRY_ITU_601)
+				state->conv = &conv_matrix[ITU601_RGBFULL];
+		}
+		break;
+
+	/* YUV output */
+	case OF_FMT_422_SMPT: /* semi-planar */
+	case OF_FMT_422_CCIR: /* CCIR656 */
+		blanking_codes = &yuv_blanking;
+		if ((state->colorspace == HDMI_COLORSPACE_RGB) &&
+		    (state->range == HDMI_QUANTIZATION_RANGE_FULL))
+			state->conv = &conv_matrix[RGBFULL_ITU601];
+		else if ((state->colorspace == HDMI_COLORSPACE_RGB) &&
+			 (state->range == HDMI_QUANTIZATION_RANGE_LIMITED))
+			state->conv = &conv_matrix[RGBLIMITED_ITU601];
+		break;
+	}
+
+	if (state->conv) {
+		/* enable matrix conversion */
+		reg = io_read(sd, REG_VDP_CTRL);
+		reg &= ~VDP_CTRL_MATRIX_BP;
+		io_write(sd, REG_VDP_CTRL, reg);
+		/* offset inputs */
+		io_write16(sd, REG_VDP_MATRIX + 0, state->conv->offint1);
+		io_write16(sd, REG_VDP_MATRIX + 2, state->conv->offint2);
+		io_write16(sd, REG_VDP_MATRIX + 4, state->conv->offint3);
+		/* coefficients */
+		io_write16(sd, REG_VDP_MATRIX + 6, state->conv->p11coef);
+		io_write16(sd, REG_VDP_MATRIX + 8, state->conv->p12coef);
+		io_write16(sd, REG_VDP_MATRIX + 10, state->conv->p13coef);
+		io_write16(sd, REG_VDP_MATRIX + 12, state->conv->p21coef);
+		io_write16(sd, REG_VDP_MATRIX + 14, state->conv->p22coef);
+		io_write16(sd, REG_VDP_MATRIX + 16, state->conv->p23coef);
+		io_write16(sd, REG_VDP_MATRIX + 18, state->conv->p31coef);
+		io_write16(sd, REG_VDP_MATRIX + 20, state->conv->p32coef);
+		io_write16(sd, REG_VDP_MATRIX + 22, state->conv->p33coef);
+		/* offset outputs */
+		io_write16(sd, REG_VDP_MATRIX + 24, state->conv->offout1);
+		io_write16(sd, REG_VDP_MATRIX + 26, state->conv->offout2);
+		io_write16(sd, REG_VDP_MATRIX + 28, state->conv->offout3);
+	} else {
+		/* disable matrix conversion */
+		reg = io_read(sd, REG_VDP_CTRL);
+		reg |= VDP_CTRL_MATRIX_BP;
+		io_write(sd, REG_VDP_CTRL, reg);
+	}
+
+	/* SetBlankingCodes */
+	if (blanking_codes) {
+		io_write16(sd, REG_BLK_GY, blanking_codes->code_gy);
+		io_write16(sd, REG_BLK_BU, blanking_codes->code_bu);
+		io_write16(sd, REG_BLK_RV, blanking_codes->code_rv);
+	}
+
+	return 0;
+}
+
+/* Configure frame detection window and VHREF timing generator */
+static int
+tda1997x_configure_vhref(struct v4l2_subdev *sd)
+{
+	struct tda1997x_state *state = to_state(sd);
+	const struct v4l2_bt_timings *bt;
+	int width, lines;
+	u16 href_start, href_end;
+	u16 vref_f1_start, vref_f2_start;
+	u8 vref_f1_width, vref_f2_width;
+	u8 field_polarity;
+	u16 fieldref_f1_start, fieldref_f2_start;
+	u8 reg;
+
+	if (!state->detected_timings)
+		return -EINVAL;
+	bt = &state->detected_timings->bt;
+	href_start = bt->hbackporch + bt->hsync + 1;
+	href_end = href_start + bt->width;
+	vref_f1_start = bt->height + bt->vbackporch + bt->vsync +
+			bt->il_vbackporch + bt->il_vsync +
+			bt->il_vfrontporch;
+	vref_f1_width = bt->vbackporch + bt->vsync + bt->vfrontporch;
+	vref_f2_start = 0;
+	vref_f2_width = 0;
+	fieldref_f1_start = 0;
+	fieldref_f2_start = 0;
+	if (bt->interlaced) {
+		vref_f2_start = (bt->height / 2) +
+				(bt->il_vbackporch + bt->il_vsync - 1);
+		vref_f2_width = bt->il_vbackporch + bt->il_vsync +
+				bt->il_vfrontporch;
+		fieldref_f2_start = vref_f2_start + bt->il_vfrontporch +
+				    fieldref_f1_start;
+	}
+	field_polarity = 0;
+
+	width = V4L2_DV_BT_FRAME_WIDTH(bt);
+	lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
+
+	/*
+	 * Configure Frame Detection Window:
+	 *  horiz area where the VHREF module consider a VSYNC a new frame
+	 */
+	io_write16(sd, REG_FDW_S, 0x2ef); /* start position */
+	io_write16(sd, REG_FDW_E, 0x141); /* end position */
+
+	/* Set Pixel And Line Counters */
+	if (state->chip_revision == 0)
+		io_write16(sd, REG_PXCNT_PR, 4);
+	else
+		io_write16(sd, REG_PXCNT_PR, 1);
+	io_write16(sd, REG_PXCNT_NPIX, width & MASK_VHREF);
+	io_write16(sd, REG_LCNT_PR, 1);
+	io_write16(sd, REG_LCNT_NLIN, lines & MASK_VHREF);
+
+	/*
+	 * Configure the VHRef timing generator responsible for rebuilding all
+	 * horiz and vert synch and ref signals from its input allowing auto
+	 * detection algorithms and forcing predefined modes (480i & 576i)
+	 */
+	reg = VHREF_STD_DET_OFF << VHREF_STD_DET_SHIFT;
+	io_write(sd, REG_VHREF_CTRL, reg);
+
+	/*
+	 * Configure the VHRef timing values. In case the VHREF generator has
+	 * been configured in manual mode, this will allow to manually set all
+	 * horiz and vert ref values (non-active pixel areas) of the generator
+	 * and allows setting the frame reference params.
+	 */
+	/* horizontal reference start/end */
+	io_write16(sd, REG_HREF_S, href_start & MASK_VHREF);
+	io_write16(sd, REG_HREF_E, href_end & MASK_VHREF);
+	/* vertical reference f1 start/end */
+	io_write16(sd, REG_VREF_F1_S, vref_f1_start & MASK_VHREF);
+	io_write(sd, REG_VREF_F1_WIDTH, vref_f1_width);
+	/* vertical reference f2 start/end */
+	io_write16(sd, REG_VREF_F2_S, vref_f2_start & MASK_VHREF);
+	io_write(sd, REG_VREF_F2_WIDTH, vref_f2_width);
+
+	/* F1/F2 FREF, field polarity */
+	reg = fieldref_f1_start & MASK_VHREF;
+	reg |= field_polarity << 8;
+	io_write16(sd, REG_FREF_F1_S, reg);
+	reg = fieldref_f2_start & MASK_VHREF;
+	io_write16(sd, REG_FREF_F2_S, reg);
+
+	return 0;
+}
+
+/* Configure Video Output port signals */
+static int
+tda1997x_configure_vidout(struct tda1997x_state *state)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	struct tda1997x_platform_data *pdata = &state->pdata;
+	u8 prefilter;
+	u8 reg;
+
+	/* Configure pixel clock generator: delay, polarity, rate */
+	reg = (state->vid_fmt == OF_FMT_422_CCIR) ?
+	       PCLK_SEL_X2 : PCLK_SEL_X1;
+	reg |= pdata->vidout_delay_pclk << PCLK_DELAY_SHIFT;
+	reg |= pdata->vidout_inv_pclk << PCLK_INV_SHIFT;
+	io_write(sd, REG_PCLK, reg);
+
+	/* Configure pre-filter */
+	prefilter = 0; /* filters off */
+	/* YUV422 mode requires conversion */
+	if ((state->vid_fmt == OF_FMT_422_SMPT)
+	 || (state->vid_fmt == OF_FMT_422_CCIR)) {
+		/* 2/7taps for Rv and Bu */
+		prefilter = FILTERS_CTRL_2_7TAP << FILTERS_CTRL_BU_SHIFT |
+			    FILTERS_CTRL_2_7TAP << FILTERS_CTRL_RV_SHIFT;
+	}
+	io_write(sd, REG_FILTERS_CTRL, prefilter);
+
+	/* Configure video port */
+	reg = state->vid_fmt & OF_FMT_MASK;
+	if (state->vid_fmt == OF_FMT_422_CCIR)
+		reg |= (OF_BLK | OF_TRC);
+	reg |= OF_VP_ENABLE;
+	io_write(sd, REG_OF, reg);
+
+	/* Configure formatter and conversions */
+	reg = io_read(sd, REG_VDP_CTRL);
+	/* pre-filter is needed unless (REG_FILTERS_CTRL == 0) */
+	if (!prefilter)
+		reg |= VDP_CTRL_PREFILTER_BP;
+	else
+		reg &= ~VDP_CTRL_PREFILTER_BP;
+	/* formatter is needed for YUV422 and for trc/blc codes */
+	if (state->vid_fmt == OF_FMT_444)
+		reg |= VDP_CTRL_FORMATTER_BP;
+	/* formatter and compdel needed for timing/blanking codes */
+	else
+		reg &= ~(VDP_CTRL_FORMATTER_BP | VDP_CTRL_COMPDEL_BP);
+	/* activate compdel for small sync delays */
+	if ((pdata->vidout_delay_vs < 4) || (pdata->vidout_delay_hs < 4))
+		reg &= ~VDP_CTRL_COMPDEL_BP;
+	io_write(sd, REG_VDP_CTRL, reg);
+
+	/* Configure DE output signal: delay, polarity, and source */
+	reg = pdata->vidout_delay_de << DE_FREF_DELAY_SHIFT |
+	      pdata->vidout_inv_de << DE_FREF_INV_SHIFT |
+	      pdata->vidout_sel_de << DE_FREF_SEL_SHIFT;
+	io_write(sd, REG_DE_FREF, reg);
+
+	/* Configure HS/HREF output signal: delay, polarity, and source */
+	if (state->vid_fmt != OF_FMT_422_CCIR) {
+		reg = pdata->vidout_delay_hs << HS_HREF_DELAY_SHIFT |
+		      pdata->vidout_inv_hs << HS_HREF_INV_SHIFT |
+		      pdata->vidout_sel_hs << HS_HREF_SEL_SHIFT;
+	} else
+		reg = HS_HREF_SEL_NONE << HS_HREF_SEL_SHIFT;
+	io_write(sd, REG_HS_HREF, reg);
+
+	/* Configure VS/VREF output signal: delay, polarity, and source */
+	if (state->vid_fmt != OF_FMT_422_CCIR) {
+		reg = pdata->vidout_delay_vs << VS_VREF_DELAY_SHIFT |
+		      pdata->vidout_inv_vs << VS_VREF_INV_SHIFT |
+		      pdata->vidout_sel_vs << VS_VREF_SEL_SHIFT;
+	} else
+		reg = VS_VREF_SEL_NONE << VS_VREF_SEL_SHIFT;
+	io_write(sd, REG_VS_VREF, reg);
+
+	return 0;
+}
+
+/* Configure Audio output port signals */
+static int
+tda1997x_configure_audout(struct v4l2_subdev *sd, u8 channel_assignment)
+{
+	struct tda1997x_state *state = to_state(sd);
+	struct tda1997x_platform_data *pdata = &state->pdata;
+	bool sp_used_by_fifo = 1;
+	u8 reg;
+
+	if (!pdata->audout_format)
+		return 0;
+
+	/* channel assignment (CEA-861-D Table 20) */
+	io_write(sd, REG_AUDIO_PATH, channel_assignment);
+
+	/* Audio output configuration */
+	reg = 0;
+	switch (pdata->audout_format) {
+	case AUDFMT_TYPE_I2S:
+		reg |= AUDCFG_BUS_I2S << AUDCFG_BUS_SHIFT;
+		break;
+	case AUDFMT_TYPE_SPDIF:
+		reg |= AUDCFG_BUS_SPDIF << AUDCFG_BUS_SHIFT;
+		break;
+	}
+	switch (state->audio_type) {
+	case AUDCFG_TYPE_PCM:
+		reg |= AUDCFG_TYPE_PCM << AUDCFG_TYPE_SHIFT;
+		break;
+	case AUDCFG_TYPE_OBA:
+		reg |= AUDCFG_TYPE_OBA << AUDCFG_TYPE_SHIFT;
+		break;
+	case AUDCFG_TYPE_DST:
+		reg |= AUDCFG_TYPE_DST << AUDCFG_TYPE_SHIFT;
+		sp_used_by_fifo = 0;
+		break;
+	case AUDCFG_TYPE_HBR:
+		reg |= AUDCFG_TYPE_HBR << AUDCFG_TYPE_SHIFT;
+		if (pdata->audout_layout == 1) {
+			/* demuxed via AP0:AP3 */
+			reg |= AUDCFG_HBR_DEMUX << AUDCFG_HBR_SHIFT;
+			if (pdata->audout_format == AUDFMT_TYPE_SPDIF)
+				sp_used_by_fifo = 0;
+		} else {
+			/* straight via AP0 */
+			reg |= AUDCFG_HBR_STRAIGHT << AUDCFG_HBR_SHIFT;
+		}
+		break;
+	}
+	if (pdata->audout_width == 32)
+		reg |= AUDCFG_I2SW_32 << AUDCFG_I2SW_SHIFT;
+	else
+		reg |= AUDCFG_I2SW_16 << AUDCFG_I2SW_SHIFT;
+
+	/* automatic hardware mute */
+	if (pdata->audio_auto_mute)
+		reg |= AUDCFG_AUTO_MUTE_EN;
+	/* clock polarity */
+	if (pdata->audout_invert_clk)
+		reg |= AUDCFG_CLK_INVERT;
+	io_write(sd, REG_AUDCFG, reg);
+
+	/* audio layout */
+	reg = (pdata->audout_layout) ? AUDIO_LAYOUT_LAYOUT1 : 0;
+	if (!pdata->audout_layoutauto)
+		reg |= AUDIO_LAYOUT_MANUAL;
+	if (sp_used_by_fifo)
+		reg |= AUDIO_LAYOUT_SP_FLAG;
+	io_write(sd, REG_AUDIO_LAYOUT, reg);
+
+	/* FIFO Latency value */
+	io_write(sd, REG_FIFO_LATENCY_VAL, 0x80);
+
+	/* Audio output port config */
+	if (sp_used_by_fifo) {
+		reg = AUDIO_OUT_ENABLE_AP0;
+		if (channel_assignment >= 0x01)
+			reg |= AUDIO_OUT_ENABLE_AP1;
+		if (channel_assignment >= 0x04)
+			reg |= AUDIO_OUT_ENABLE_AP2;
+		if (channel_assignment >= 0x0c)
+			reg |= AUDIO_OUT_ENABLE_AP3;
+		/* specific cases where AP1 is not used */
+		if ((channel_assignment == 0x04)
+		 || (channel_assignment == 0x08)
+		 || (channel_assignment == 0x0c)
+		 || (channel_assignment == 0x10)
+		 || (channel_assignment == 0x14)
+		 || (channel_assignment == 0x18)
+		 || (channel_assignment == 0x1c))
+			reg &= ~AUDIO_OUT_ENABLE_AP1;
+		/* specific cases where AP2 is not used */
+		if ((channel_assignment >= 0x14)
+		 && (channel_assignment <= 0x17))
+			reg &= ~AUDIO_OUT_ENABLE_AP2;
+	} else {
+		reg = AUDIO_OUT_ENABLE_AP3 |
+		      AUDIO_OUT_ENABLE_AP2 |
+		      AUDIO_OUT_ENABLE_AP1 |
+		      AUDIO_OUT_ENABLE_AP0;
+	}
+	if (pdata->audout_format == AUDFMT_TYPE_I2S)
+		reg |= (AUDIO_OUT_ENABLE_ACLK | AUDIO_OUT_ENABLE_WS);
+	io_write(sd, REG_AUDIO_OUT_ENABLE, reg);
+
+	/* reset test mode to normal audio freq auto selection */
+	io_write(sd, REG_TEST_MODE, 0x00);
+
+	return 0;
+}
+
+/* Soft Reset of specific hdmi info */
+static int
+tda1997x_hdmi_info_reset(struct v4l2_subdev *sd, u8 info_rst, bool reset_sus)
+{
+	u8 reg;
+
+	/* reset infoframe engine packets */
+	reg = io_read(sd, REG_HDMI_INFO_RST);
+	io_write(sd, REG_HDMI_INFO_RST, info_rst);
+
+	/* if infoframe engine has been reset clear INT_FLG_MODE */
+	if (reg & RESET_IF) {
+		reg = io_read(sd, REG_INT_FLG_CLR_MODE);
+		io_write(sd, REG_INT_FLG_CLR_MODE, reg);
+	}
+
+	/* Disable REFTIM to restart start-up-sequencer (SUS) */
+	reg = io_read(sd, REG_RATE_CTRL);
+	reg &= ~RATE_REFTIM_ENABLE;
+	if (!reset_sus)
+		reg |= RATE_REFTIM_ENABLE;
+	reg = io_write(sd, REG_RATE_CTRL, reg);
+
+	return 0;
+}
+
+static void
+tda1997x_power_mode(struct tda1997x_state *state, bool enable)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u8 reg;
+
+	if (enable) {
+		/* Automatic control of TMDS */
+		io_write(sd, REG_PON_OVR_EN, PON_DIS);
+		/* Enable current bias unit */
+		io_write(sd, REG_CFG1, PON_EN);
+		/* Enable deep color PLL */
+		io_write(sd, REG_DEEP_PLL7_BYP, PON_DIS);
+		/* Output buffers active */
+		reg = io_read(sd, REG_OF);
+		reg &= ~OF_VP_ENABLE;
+		io_write(sd, REG_OF, reg);
+	} else {
+		/* Power down EDID mode sequence */
+		/* Output buffers in HiZ */
+		reg = io_read(sd, REG_OF);
+		reg |= OF_VP_ENABLE;
+		io_write(sd, REG_OF, reg);
+		/* Disable deep color PLL */
+		io_write(sd, REG_DEEP_PLL7_BYP, PON_EN);
+		/* Disable current bias unit */
+		io_write(sd, REG_CFG1, PON_DIS);
+		/* Manual control of TMDS */
+		io_write(sd, REG_PON_OVR_EN, PON_EN);
+	}
+}
+
+static bool
+tda1997x_detect_tx_5v(struct v4l2_subdev *sd)
+{
+	u8 reg = io_read(sd, REG_DETECT_5V);
+
+	return ((reg & DETECT_5V_SEL) ? 1 : 0);
+}
+
+static bool
+tda1997x_detect_tx_hpd(struct v4l2_subdev *sd)
+{
+	u8 reg = io_read(sd, REG_DETECT_5V);
+
+	return ((reg & DETECT_HPD) ? 1 : 0);
+}
+
+static int
+tda1997x_detect_std(struct tda1997x_state *state)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u32 vper;
+	u16 hper;
+	u16 hsper;
+	int i;
+
+	/*
+	 * Read the FMT registers
+	 *   REG_V_PER: Period of a frame (or two fields) in MCLK(27MHz) cycles
+	 *   REG_H_PER: Period of a line in MCLK(27MHz) cycles
+	 *   REG_HS_WIDTH: Period of horiz sync pulse in MCLK(27MHz) cycles
+	 */
+	vper = io_read24(sd, REG_V_PER) & MASK_VPER;
+	hper = io_read16(sd, REG_H_PER) & MASK_HPER;
+	hsper = io_read16(sd, REG_HS_WIDTH) & MASK_HSWIDTH;
+	if (!vper || !hper || !hsper)
+		return -ENOLINK;
+	v4l2_dbg(1, debug, sd, "Signal Timings: %u/%u/%u\n", vper, hper, hsper);
+
+	/* look for matching timings */
+	for (i = 0; i < ARRAY_SIZE(tda1997x_hdmi_modes); i++) {
+		const struct v4l2_bt_timings *bt = &tda1997x_hdmi_modes[i].bt;
+		u32 lines, width, _hper, _hsper;
+		u32 vmin, vmax, hmin, hmax, hsmin, hsmax;
+		bool vmatch, hmatch, hsmatch;
+
+		width = V4L2_DV_BT_FRAME_WIDTH(bt);
+		lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
+		_hper = (u32)bt->pixelclock / width;
+		if (bt->interlaced)
+			lines /= 2;
+		/* vper +/- 0.7% */
+		vmin = ((27000000 / 1000) * 993) / _hper * lines;
+		vmax = ((27000000 / 1000) * 1007) / _hper * lines;
+		/* hper +/- 1.0% */
+		hmin = ((27000000 / 100) * 99) / _hper;
+		hmax = ((27000000 / 100) * 101) / _hper;
+		/* hsper +/- 2 (take care to avoid 32bit overflow) */
+		_hsper = 27000 * bt->hsync / ((u32)bt->pixelclock/1000);
+		hsmin = _hsper - 2;
+		hsmax = _hsper + 2;
+
+		/* vmatch matches the framerate */
+		vmatch = ((vper <= vmax) && (vper >= vmin)) ? 1 : 0;
+		/* hmatch matches the width */
+		hmatch = ((hper <= hmax) && (hper >= hmin)) ? 1 : 0;
+		/* hsmatch matches the hswidth */
+		hsmatch = ((hsper <= hsmax) && (hsper >= hsmin)) ? 1 : 0;
+		if (hmatch && vmatch && hsmatch) {
+			state->detected_timings = &tda1997x_hdmi_modes[i];
+			v4l2_print_dv_timings(sd->name, "Detected format: ",
+					      state->detected_timings, false);
+			return 0;
+		}
+	}
+
+	v4l_err(state->client, "no resolution match for timings: %d/%d/%d\n",
+		vper, hper, hsper);
+	return -EINVAL;
+}
+
+/* some sort of errata workaround for chip revision 0 (N1) */
+static void tda1997x_reset_n1(struct tda1997x_state *state)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u8 reg;
+
+	/* clear HDMI mode flag in BCAPS */
+	io_write(sd, REG_CLK_CFG, CLK_CFG_SEL_ACLK_EN | CLK_CFG_SEL_ACLK);
+	io_write(sd, REG_PON_OVR_EN, PON_EN);
+	io_write(sd, REG_PON_CBIAS, PON_EN);
+	io_write(sd, REG_PON_PLL, PON_EN);
+
+	reg = io_read(sd, REG_MODE_REC_CFG1);
+	reg &= ~0x06;
+	reg |= 0x02;
+	io_write(sd, REG_MODE_REC_CFG1, reg);
+	io_write(sd, REG_CLK_CFG, CLK_CFG_DIS);
+	io_write(sd, REG_PON_OVR_EN, PON_DIS);
+	reg = io_read(sd, REG_MODE_REC_CFG1);
+	reg &= ~0x06;
+	io_write(sd, REG_MODE_REC_CFG1, reg);
+}
+
+/*
+ * Activity detection must only be notified when stable_clk_x AND active_x
+ * bits are set to 1. If only stable_clk_x bit is set to 1 but not
+ * active_x, it means that the TMDS clock is not in the defined range
+ * and activity detection must not be notified.
+ */
+static u8
+tda1997x_read_activity_status_regs(struct v4l2_subdev *sd)
+{
+	u8 reg, status = 0;
+
+	/* Read CLK_A_STATUS register */
+	reg = io_read(sd, REG_CLK_A_STATUS);
+	/* when stable_clk_x is set to 1, check active_x bit */
+	if ((reg & MASK_CLK_STABLE) && !(reg & MASK_CLK_ACTIVE))
+		reg &= ~MASK_CLK_STABLE;
+	status |= ((reg & MASK_CLK_STABLE) >> 2);
+
+	/* Read CLK_B_STATUS register */
+	reg = io_read(sd, REG_CLK_B_STATUS);
+	/* when stable_clk_x is set to 1, check active_x bit */
+	if ((reg & MASK_CLK_STABLE) && !(reg & MASK_CLK_ACTIVE))
+		reg &= ~MASK_CLK_STABLE;
+	status |= ((reg & MASK_CLK_STABLE) >> 1);
+
+	/* Read the SUS_STATUS register */
+	reg = io_read(sd, REG_SUS_STATUS);
+
+	/* If state = 5 => TMDS is locked */
+	if ((reg & MASK_SUS_STATUS) == LAST_STATE_REACHED)
+		status |= MASK_SUS_STATE;
+	else
+		status &= ~MASK_SUS_STATE;
+
+	return status;
+}
+
+/* parse an infoframe and do some sanity checks on it */
+static unsigned int
+tda1997x_parse_infoframe(struct tda1997x_state *state, u16 addr)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	union hdmi_infoframe frame;
+	u8 buffer[40];
+	u8 reg;
+	int len, err;
+
+	/* read data */
+	len = io_readn(sd, addr, sizeof(buffer), buffer);
+	err = hdmi_infoframe_unpack(&frame, buffer);
+	if (err) {
+		v4l_err(state->client,
+			"failed parsing %d byte infoframe: 0x%04x/0x%02x\n",
+			len, addr, buffer[0]);
+		return err;
+	}
+	hdmi_infoframe_log(KERN_INFO, &state->client->dev, &frame);
+	switch (frame.any.type) {
+	/* Audio InfoFrame: see HDMI spec 8.2.2 */
+	case HDMI_INFOFRAME_TYPE_AUDIO:
+		/* sample rate */
+		switch (frame.audio.sample_frequency) {
+		case HDMI_AUDIO_SAMPLE_FREQUENCY_32000:
+			state->audio_samplerate = 32000;
+			break;
+		case HDMI_AUDIO_SAMPLE_FREQUENCY_44100:
+			state->audio_samplerate = 44100;
+			break;
+		case HDMI_AUDIO_SAMPLE_FREQUENCY_48000:
+			state->audio_samplerate = 48000;
+			break;
+		case HDMI_AUDIO_SAMPLE_FREQUENCY_88200:
+			state->audio_samplerate = 88200;
+			break;
+		case HDMI_AUDIO_SAMPLE_FREQUENCY_96000:
+			state->audio_samplerate = 96000;
+			break;
+		case HDMI_AUDIO_SAMPLE_FREQUENCY_176400:
+			state->audio_samplerate = 176400;
+			break;
+		case HDMI_AUDIO_SAMPLE_FREQUENCY_192000:
+			state->audio_samplerate = 192000;
+			break;
+		default:
+		case HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM:
+			break;
+		}
+
+		/* sample size */
+		switch (frame.audio.sample_size) {
+		case HDMI_AUDIO_SAMPLE_SIZE_16:
+			state->audio_samplesize = 16;
+			break;
+		case HDMI_AUDIO_SAMPLE_SIZE_20:
+			state->audio_samplesize = 20;
+			break;
+		case HDMI_AUDIO_SAMPLE_SIZE_24:
+			state->audio_samplesize = 24;
+			break;
+		case HDMI_AUDIO_SAMPLE_SIZE_STREAM:
+		default:
+			break;
+		}
+
+		/* Channel Count */
+		state->audio_channels = frame.audio.channels;
+		if (frame.audio.channel_allocation &&
+		    frame.audio.channel_allocation != state->audio_ch_alloc) {
+			/* use the channel assignment from the infoframe */
+			state->audio_ch_alloc = frame.audio.channel_allocation;
+			tda1997x_configure_audout(sd, state->audio_ch_alloc);
+			/* reset the audio FIFO */
+			tda1997x_hdmi_info_reset(sd, RESET_AUDIO, false);
+		}
+		break;
+
+	/* Auxiliary Video information (AVI) InfoFrame: see HDMI spec 8.2.1 */
+	case HDMI_INFOFRAME_TYPE_AVI:
+		state->colorspace = frame.avi.colorspace;
+		state->colorimetry = frame.avi.colorimetry;
+		state->range = frame.avi.quantization_range;
+		state->content = frame.avi.content_type;
+		/*
+		 * If colorimetry not specified, conversion depends on res type:
+		 *  - SDTV: ITU601 for SD (480/576/240/288 line resolution)
+		 *  - HDTV: ITU709 for HD (720/1080 line resolution)
+		 *  -   PC: sRGB
+		 * see HDMI specification section 6.7
+		 */
+		if ((state->colorspace == HDMI_COLORSPACE_YUV422 ||
+		     state->colorspace == HDMI_COLORSPACE_YUV444) &&
+		    (state->colorimetry == HDMI_COLORIMETRY_EXTENDED ||
+		     state->colorimetry == HDMI_COLORIMETRY_NONE)) {
+			switch (state->timings.bt.height) {
+			case 480:
+			case 576:
+			case 240:
+			case 288:
+				state->colorimetry = HDMI_COLORIMETRY_ITU_601;
+				break;
+			case 720:
+			case 1080:
+				state->colorimetry = HDMI_COLORIMETRY_ITU_709;
+				break;
+			default:
+				state->colorimetry = HDMI_COLORIMETRY_NONE;
+				break;
+			}
+		}
+		/* if range not specified */
+		if (state->range == HDMI_QUANTIZATION_RANGE_DEFAULT) {
+			if (frame.avi.video_code == 0)
+				state->range = HDMI_QUANTIZATION_RANGE_FULL;
+			else
+				state->range = HDMI_QUANTIZATION_RANGE_LIMITED;
+		}
+		v4l_dbg(1, debug, state->client,
+			"colorspace=%d colorimetry=%d range=%d content=%d\n",
+			state->colorspace, state->colorimetry, state->range,
+			state->content);
+
+		/* configure upsampler: 0=bypass 1=repeatchroma 2=interpolate */
+		reg = io_read(sd, REG_PIX_REPEAT);
+		reg &= ~PIX_REPEAT_MASK_UP_SEL;
+		if (state->colorspace == HDMI_COLORSPACE_YUV422)
+			reg |= (PIX_REPEAT_CHROMA << PIX_REPEAT_SHIFT);
+		io_write(sd, REG_PIX_REPEAT, reg);
+
+		/* ConfigurePixelRepeater: repeat n-times each pixel */
+		reg = io_read(sd, REG_PIX_REPEAT);
+		reg &= ~PIX_REPEAT_MASK_REP;
+		reg |= frame.avi.pixel_repeat;
+		io_write(sd, REG_PIX_REPEAT, reg);
+
+		/* configure the receiver with the new colorspace */
+		tda1997x_configure_csc(sd);
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static void tda1997x_irq_sus(struct tda1997x_state *state, u8 *flags)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u8 reg, source;
+
+	source = io_read(sd, REG_INT_FLG_CLR_SUS);
+	io_write(sd, REG_INT_FLG_CLR_SUS, source);
+
+	if (source & MASK_MPT) {
+		/* reset MTP in use flag if set */
+		if (state->mptrw_in_progress)
+			state->mptrw_in_progress = 0;
+	}
+
+	if (source & MASK_SUS_END) {
+		/* reset audio FIFO */
+		reg = io_read(sd, REG_HDMI_INFO_RST);
+		reg |= MASK_SR_FIFO_FIFO_CTRL;
+		io_write(sd, REG_HDMI_INFO_RST, reg);
+		reg &= ~MASK_SR_FIFO_FIFO_CTRL;
+		io_write(sd, REG_HDMI_INFO_RST, reg);
+
+		/* reset HDMI flags */
+		state->hdmi_status = 0;
+	}
+
+	/* filter FMT interrupt based on SUS state */
+	reg = io_read(sd, REG_SUS_STATUS);
+	if (((reg & MASK_SUS_STATUS) != LAST_STATE_REACHED)
+	   || (source & MASK_MPT)) {
+		source &= ~MASK_FMT;
+	}
+
+	if (source & (MASK_FMT | MASK_SUS_END)) {
+		reg = io_read(sd, REG_SUS_STATUS);
+		if ((reg & MASK_SUS_STATUS) != LAST_STATE_REACHED) {
+			v4l_err(state->client, "BAD SUS STATUS\n");
+			return;
+		}
+
+		/* There is new activity, the status for HDCP repeater state */
+		state->state_c5_reached = 0;
+
+		/* Detect the new resolution */
+		if (!tda1997x_detect_std(state))
+			v4l2_subdev_notify_event(&state->sd, &tda1997x_ev_fmt);
+	}
+}
+
+static void tda1997x_irq_ddc(struct tda1997x_state *state, u8 *flags)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u8 source;
+
+	source = io_read(sd, REG_INT_FLG_CLR_DDC);
+	io_write(sd, REG_INT_FLG_CLR_DDC, source);
+	if (source & MASK_EDID_MTP) {
+		/* reset MTP in use flag if set */
+		if (state->mptrw_in_progress)
+			state->mptrw_in_progress = 0;
+	}
+
+	/* Detection of +5V */
+	if (source & MASK_DET_5V) {
+		v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl,
+				 tda1997x_detect_tx_5v(sd));
+	}
+}
+
+static void tda1997x_irq_rate(struct tda1997x_state *state, u8 *flags)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u8 reg, source;
+
+	u8 irq_status, last_irq_status;
+
+	source = io_read(sd, REG_INT_FLG_CLR_RATE);
+	io_write(sd, REG_INT_FLG_CLR_RATE, source);
+
+	/* read status regs */
+	last_irq_status = irq_status = tda1997x_read_activity_status_regs(sd);
+
+	/*
+	 * read clock status reg until INT_FLG_CLR_RATE is still 0
+	 * after the read to make sure its the last one
+	 */
+	reg = source;
+	while (reg != 0) {
+		irq_status = tda1997x_read_activity_status_regs(sd);
+		reg = io_read(sd, REG_INT_FLG_CLR_RATE);
+		io_write(sd, REG_INT_FLG_CLR_RATE, reg);
+		source |= reg;
+	}
+
+	/* we only pay attention to stability change events */
+	if (source & (MASK_RATE_A_ST | MASK_RATE_B_ST)) {
+		int input = (source & MASK_RATE_A_ST)?0:1;
+		u8 mask = 1<<input;
+
+		/* state change */
+		if ((irq_status & mask) != (state->activity_status & mask)) {
+			/* activity lost */
+			if ((irq_status & mask) == 0) {
+				v4l_info(state->client,
+					 "HDMI-%c: Digital Activity Lost\n",
+					 input+'A');
+
+				/* bypass up/down sampler and pixel repeater */
+				reg = io_read(sd, REG_PIX_REPEAT);
+				reg &= ~PIX_REPEAT_MASK_UP_SEL;
+				reg &= ~PIX_REPEAT_MASK_REP;
+				io_write(sd, REG_PIX_REPEAT, reg);
+
+				if (state->chip_revision == 0)
+					tda1997x_reset_n1(state);
+
+				state->detected_timings = NULL;
+				state->input_detect[input] = 0;
+				v4l2_subdev_notify_event(sd, &tda1997x_ev_fmt);
+			}
+
+			/* activity detected */
+			else {
+				v4l_info(state->client,
+					 "HDMI-%c: Digital Activity Detected\n",
+					 input+'A');
+				state->input_detect[input] = 1;
+			}
+
+			/* hold onto current state */
+			state->activity_status = (irq_status & mask);
+		}
+	}
+}
+
+static void tda1997x_irq_info(struct tda1997x_state *state, u8 *flags)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u8 source;
+
+	source = io_read(sd, REG_INT_FLG_CLR_INFO);
+	io_write(sd, REG_INT_FLG_CLR_INFO, source);
+
+	/* Audio infoframe */
+	if (source & MASK_AUD_IF) {
+		tda1997x_parse_infoframe(state, AUD_IF);
+		source &= ~MASK_AUD_IF;
+	}
+
+	/* Source Product Descriptor infoframe change */
+	if (source & MASK_SPD_IF) {
+		tda1997x_parse_infoframe(state, SPD_IF);
+		source &= ~MASK_SPD_IF;
+	}
+
+	/* Auxiliary Video Information infoframe */
+	if (source & MASK_AVI_IF) {
+		tda1997x_parse_infoframe(state, AVI_IF);
+		source &= ~MASK_AVI_IF;
+	}
+}
+
+static void tda1997x_irq_audio(struct tda1997x_state *state, u8 *flags)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u8 reg, source;
+
+	source = io_read(sd, REG_INT_FLG_CLR_AUDIO);
+	io_write(sd, REG_INT_FLG_CLR_AUDIO, source);
+
+	/* reset audio FIFO on FIFO pointer error or audio mute */
+	if (source & MASK_ERROR_FIFO_PT ||
+	    source & MASK_MUTE_FLG) {
+		/* audio reset audio FIFO */
+		reg = io_read(sd, REG_SUS_STATUS);
+		if ((reg & MASK_SUS_STATUS) == LAST_STATE_REACHED) {
+			reg = io_read(sd, REG_HDMI_INFO_RST);
+			reg |= MASK_SR_FIFO_FIFO_CTRL;
+			io_write(sd, REG_HDMI_INFO_RST, reg);
+			reg &= ~MASK_SR_FIFO_FIFO_CTRL;
+			io_write(sd, REG_HDMI_INFO_RST, reg);
+			/* reset channel status IT if present */
+			source &= ~(MASK_CH_STATE);
+		}
+	}
+	if (source & MASK_AUDIO_FREQ_FLG) {
+		static const int freq[] = {
+			0, 32000, 44100, 48000, 88200, 96000, 176400, 192000
+		};
+
+		reg = io_read(sd, REG_AUDIO_FREQ);
+		state->audio_samplerate = freq[reg & 7];
+		v4l_info(state->client, "Audio Frequency Change: %dHz\n",
+			 state->audio_samplerate);
+	}
+	if (source & MASK_AUDIO_FLG) {
+		reg = io_read(sd, REG_AUDIO_FLAGS);
+		if (reg & BIT(AUDCFG_TYPE_DST))
+			state->audio_type = AUDCFG_TYPE_DST;
+		if (reg & BIT(AUDCFG_TYPE_OBA))
+			state->audio_type = AUDCFG_TYPE_OBA;
+		if (reg & BIT(AUDCFG_TYPE_HBR))
+			state->audio_type = AUDCFG_TYPE_HBR;
+		if (reg & BIT(AUDCFG_TYPE_PCM))
+			state->audio_type = AUDCFG_TYPE_PCM;
+		v4l_info(state->client, "Audio Type: %s\n",
+			 audtype_names[state->audio_type]);
+	}
+}
+
+static void tda1997x_irq_hdcp(struct tda1997x_state *state, u8 *flags)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	u8 reg, source;
+
+	source = io_read(sd, REG_INT_FLG_CLR_HDCP);
+	io_write(sd, REG_INT_FLG_CLR_HDCP, source);
+
+	/* reset MTP in use flag if set */
+	if (source & MASK_HDCP_MTP)
+		state->mptrw_in_progress = 0;
+	if (source & MASK_STATE_C5) {
+		/* REPEATER: mask AUDIO and IF irqs to avoid IF during auth */
+		reg = io_read(sd, REG_INT_MASK_TOP);
+		reg &= ~(INTERRUPT_AUDIO | INTERRUPT_INFO);
+		io_write(sd, REG_INT_MASK_TOP, reg);
+		*flags &= (INTERRUPT_AUDIO | INTERRUPT_INFO);
+	}
+}
+
+static irqreturn_t tda1997x_isr_thread(int irq, void *d)
+{
+	struct tda1997x_state *state = d;
+	struct v4l2_subdev *sd = &state->sd;
+	u8 flags;
+
+	mutex_lock(&state->lock);
+	do {
+		/* read interrupt flags */
+		flags = io_read(sd, REG_INT_FLG_CLR_TOP);
+		if (flags == 0)
+			break;
+
+		/* SUS interrupt source (Input activity events) */
+		if (flags & INTERRUPT_SUS)
+			tda1997x_irq_sus(state, &flags);
+		/* DDC interrupt source (Display Data Channel) */
+		else if (flags & INTERRUPT_DDC)
+			tda1997x_irq_ddc(state, &flags);
+		/* RATE interrupt source (Digital Input activity) */
+		else if (flags & INTERRUPT_RATE)
+			tda1997x_irq_rate(state, &flags);
+		/* Infoframe change interrupt */
+		else if (flags & INTERRUPT_INFO)
+			tda1997x_irq_info(state, &flags);
+		/* Audio interrupt source:
+		 *   freq change, DST,OBA,HBR,ASP flags, mute, FIFO err
+		 */
+		else if (flags & INTERRUPT_AUDIO)
+			tda1997x_irq_audio(state, &flags);
+		/* HDCP interrupt source (content protection) */
+		if (flags & INTERRUPT_HDCP)
+			tda1997x_irq_hdcp(state, &flags);
+	} while (flags != 0);
+	mutex_unlock(&state->lock);
+
+	return IRQ_HANDLED;
+}
+
+static bool tda1997x_check_dv_timings(const struct v4l2_dv_timings *timings,
+				      void *hdl)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(tda1997x_hdmi_modes); i++) {
+		if (v4l2_match_dv_timings(timings, &tda1997x_hdmi_modes[i],
+					  0, false))
+			return true;
+	}
+
+	return false;
+}
+
+/* -----------------------------------------------------------------------------
+ * v4l2_subdev_video_ops
+ */
+
+static int
+tda1997x_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	mutex_lock(&state->lock);
+	if (state->detected_timings)
+		*status = 0;
+	else
+		*status |= V4L2_IN_ST_NO_SIGNAL;
+	mutex_unlock(&state->lock);
+
+	return 0;
+};
+
+static int tda1997x_s_dv_timings(struct v4l2_subdev *sd,
+				struct v4l2_dv_timings *timings)
+{
+	struct tda1997x_state *state = to_state(sd);
+	int ret;
+
+	v4l_dbg(1, debug, state->client, "%s\n", __func__);
+	if (!timings)
+		return -EINVAL;
+
+	if (v4l2_match_dv_timings(&state->timings, timings, 0, false))
+		return 0; /* no changes */
+
+	if (!v4l2_valid_dv_timings(timings, &tda1997x_dv_timings_cap,
+				   tda1997x_check_dv_timings, state))
+		return -ERANGE;
+
+	mutex_lock(&state->lock);
+	state->timings = *timings;
+	/* setup frame detection window and VHREF timing generator */
+	ret = tda1997x_configure_vhref(sd);
+	if (ret)
+		goto error;
+	/* configure colorspace conversion */
+	ret = tda1997x_configure_csc(sd);
+	if (ret)
+		goto error;
+	mutex_unlock(&state->lock);
+
+	return 0;
+
+error:
+	mutex_unlock(&state->lock);
+	return ret;
+}
+
+static int tda1997x_g_dv_timings(struct v4l2_subdev *sd,
+				 struct v4l2_dv_timings *timings)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	v4l_dbg(1, debug, state->client, "%s\n", __func__);
+	if (!timings)
+		return -EINVAL;
+
+	mutex_lock(&state->lock);
+	*timings = state->timings;
+	mutex_unlock(&state->lock);
+
+	return 0;
+}
+
+static int tda1997x_query_dv_timings(struct v4l2_subdev *sd,
+				     struct v4l2_dv_timings *timings)
+{
+	struct tda1997x_state *state = to_state(sd);
+	int ret;
+
+	v4l_dbg(1, debug, state->client, "%s\n", __func__);
+	if (!timings)
+		return -EINVAL;
+
+	memset(timings, 0, sizeof(struct v4l2_dv_timings));
+	mutex_lock(&state->lock);
+	ret = tda1997x_detect_std(state);
+	if (!ret)
+		*timings = *state->detected_timings;
+	mutex_unlock(&state->lock);
+
+	return ret;
+}
+
+static int tda1997x_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	v4l_dbg(1, debug, state->client, "%s %d\n", __func__, enable);
+	mutex_lock(&state->lock);
+	if (!state->detected_timings)
+		v4l_dbg(1, debug, state->client, "Invalid HDMI signal\n");
+	mutex_unlock(&state->lock);
+
+	return 0;
+}
+
+static const struct v4l2_subdev_video_ops tda1997x_video_ops = {
+	.g_input_status = tda1997x_g_input_status,
+	.s_dv_timings = tda1997x_s_dv_timings,
+	.g_dv_timings = tda1997x_g_dv_timings,
+	.query_dv_timings = tda1997x_query_dv_timings,
+	.s_stream = tda1997x_s_stream,
+};
+
+
+/* -----------------------------------------------------------------------------
+ * v4l2_subdev_pad_ops
+ */
+
+static int tda1997x_enum_mbus_code(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_pad_config *cfg,
+				  struct v4l2_subdev_mbus_code_enum *code)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	if (code->index > 0)
+		return -EINVAL;
+
+	code->code = state->code;
+
+	return 0;
+}
+
+static int tda1997x_fill_format(struct tda1997x_state *state,
+				struct v4l2_mbus_framefmt *format)
+{
+	const struct v4l2_bt_timings *bt;
+
+	v4l_dbg(1, debug, state->client, "%s\n", __func__);
+
+	if (!state->detected_timings)
+		return -EINVAL;
+	bt = &state->detected_timings->bt;
+	memset(format, 0, sizeof(*format));
+
+	format->width = bt->width;
+	format->height = bt->height;
+	format->field = V4L2_FIELD_NONE;
+	format->colorspace = V4L2_COLORSPACE_SRGB;
+	if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO)
+		format->colorspace = (bt->height <= 576) ?
+			V4L2_COLORSPACE_SMPTE170M : V4L2_COLORSPACE_REC709;
+
+	return 0;
+}
+
+static int tda1997x_get_pad_format(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_pad_config *cfg,
+				   struct v4l2_subdev_format *format)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	v4l_dbg(1, debug, state->client, "%s\n", __func__);
+	if (format->pad != TDA1997X_PAD_SOURCE)
+		return -EINVAL;
+
+	tda1997x_fill_format(state, &format->format);
+
+	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
+		struct v4l2_mbus_framefmt *fmt;
+
+		fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
+		format->format.code = format->format.code;
+	} else
+		format->format.code = state->code;
+
+	return 0;
+}
+
+static int tda1997x_set_pad_format(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_pad_config *cfg,
+				   struct v4l2_subdev_format *format)
+{
+	struct v4l2_mbus_framefmt *fmt;
+
+	if (format->pad != TDA1997X_PAD_SOURCE)
+		return -EINVAL;
+
+	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+		return tda1997x_get_pad_format(sd, cfg, format);
+
+	fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
+	*fmt = format->format;
+
+	return 0;
+}
+
+static int tda1997x_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	v4l_dbg(1, debug, state->client, "%s pad=%d\n", __func__, edid->pad);
+	memset(edid->reserved, 0, sizeof(edid->reserved));
+
+	if (!state->edid.present)
+		return -ENODATA;
+
+	if (edid->start_block == 0 && edid->blocks == 0) {
+		edid->blocks = state->edid.blocks;
+		return 0;
+	}
+
+	if (edid->start_block >= state->edid.blocks)
+		return -EINVAL;
+
+	if (edid->start_block + edid->blocks > state->edid.blocks)
+		edid->blocks = state->edid.blocks - edid->start_block;
+
+	memcpy(edid->edid, state->edid.edid + edid->start_block * 128,
+	       edid->blocks * 128);
+
+	return 0;
+}
+
+static int tda1997x_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
+{
+	struct tda1997x_state *state = to_state(sd);
+	int i;
+
+	v4l_dbg(1, debug, state->client, "%s pad=%d\n", __func__, edid->pad);
+	memset(edid->reserved, 0, sizeof(edid->reserved));
+
+	if (edid->start_block != 0)
+		return -EINVAL;
+
+	if (edid->blocks == 0) {
+		state->edid.blocks = 0;
+		state->edid.present = 0;
+		tda1997x_disable_edid(sd);
+		return 0;
+	}
+
+	if (edid->blocks > 2) {
+		edid->blocks = 2;
+		return -E2BIG;
+	}
+
+	tda1997x_disable_edid(sd);
+
+	/* write base EDID */
+	for (i = 0; i < 128; i++)
+		io_write(sd, REG_EDID_IN_BYTE0 + i, edid->edid[i]);
+
+	/* write CEA Extension */
+	for (i = 0; i < 128; i++)
+		io_write(sd, REG_EDID_IN_BYTE128 + i, edid->edid[i+128]);
+
+	tda1997x_enable_edid(sd);
+
+	return 0;
+}
+
+static int tda1997x_get_dv_timings_cap(struct v4l2_subdev *sd,
+				       struct v4l2_dv_timings_cap *cap)
+{
+	*cap = tda1997x_dv_timings_cap;
+	return 0;
+}
+
+static int tda1997x_enum_dv_timings(struct v4l2_subdev *sd,
+				    struct v4l2_enum_dv_timings *timings)
+{
+	struct tda1997x_state *state = to_state(sd);
+
+	return v4l2_enum_dv_timings_cap(timings, &tda1997x_dv_timings_cap,
+					tda1997x_check_dv_timings, state);
+}
+
+static const struct v4l2_subdev_pad_ops tda1997x_pad_ops = {
+	.enum_mbus_code = tda1997x_enum_mbus_code,
+	.get_fmt = tda1997x_get_pad_format,
+	.set_fmt = tda1997x_set_pad_format,
+	.get_edid = tda1997x_get_edid,
+	.set_edid = tda1997x_set_edid,
+	.dv_timings_cap = tda1997x_get_dv_timings_cap,
+	.enum_dv_timings = tda1997x_enum_dv_timings,
+};
+
+/* -----------------------------------------------------------------------------
+ * v4l2_subdev_core_ops
+ */
+
+static int tda1997x_log_infoframe(struct v4l2_subdev *sd, int addr)
+{
+	struct tda1997x_state *state = to_state(sd);
+	union hdmi_infoframe frame;
+	u8 buffer[40];
+	int len, err;
+
+	/* read data */
+	len = io_readn(sd, addr, sizeof(buffer), buffer);
+	v4l2_dbg(1, debug, sd, "infoframe: addr=%d len=%d\n", addr, len);
+	err = hdmi_infoframe_unpack(&frame, buffer);
+	if (err) {
+		v4l_err(state->client,
+			"failed parsing %d byte infoframe: 0x%04x/0x%02x\n",
+			len, addr, buffer[0]);
+		return err;
+	}
+	hdmi_infoframe_log(KERN_INFO, &state->client->dev, &frame);
+
+	return 0;
+}
+
+static int tda1997x_log_status(struct v4l2_subdev *sd)
+{
+	struct tda1997x_state *state = to_state(sd);
+	struct v4l2_dv_timings timings;
+	static const char * const colorspace[] = {
+		"RGB", "YUV422", "YUV444", "YUV420", "", "", "", "",
+	};
+	static const char * const colorimetry[] = {
+		"", "ITU601", "ITU709", "Extended",
+	};
+	static const char * const rgb_quantization_range_txt[] = {
+		"Automatic",
+		"limited range (16-235)",
+		"full range (0-255)",
+	};
+
+	v4l2_info(sd, "-----Chip status-----\n");
+	v4l2_info(sd, "Chip: %s N%d\n", state->info->name,
+		  state->chip_revision + 1);
+	v4l2_info(sd, "EDID Enabled: %s\n", state->edid.present ? "yes" : "no");
+
+	v4l2_info(sd, "-----Signal status-----\n");
+	v4l2_info(sd, "Cable detected (+5V power): %s\n",
+		  tda1997x_detect_tx_5v(sd) ? "yes" : "no");
+	v4l2_info(sd, "HPD detected: %s\n",
+		  tda1997x_detect_tx_hpd(sd) ? "yes" : "no");
+
+	v4l2_info(sd, "-----Video Timings-----\n");
+	if (tda1997x_query_dv_timings(sd, &timings))
+		v4l2_info(sd, "No video detected\n");
+	else
+		v4l2_print_dv_timings(sd->name, "Detected format: ",
+				      &timings, true);
+	v4l2_print_dv_timings(sd->name, "Configured format: ",
+			      &state->timings, true);
+
+	v4l2_info(sd, "-----Color space-----\n");
+	v4l2_info(sd, "Input color space: %s %s %s",
+		  colorspace[state->colorspace],
+		  (state->colorspace == HDMI_COLORSPACE_RGB) ? "" :
+		  colorimetry[state->colorimetry],
+		  rgb_quantization_range_txt[state->range]);
+	v4l2_info(sd, "Output color space: %s",
+		  vidfmt_names[state->vid_fmt]);
+	v4l2_info(sd, "Color space conversion: %s", state->conv ?
+		  state->conv->name : "None");
+
+	v4l2_info(sd, "-----Audio-----\n");
+	if (state->audio_channels) {
+		v4l2_info(sd, "audio: %dch %dHz\n", state->audio_channels,
+			  state->audio_samplerate);
+	} else {
+		v4l2_info(sd, "audio: none\n");
+	}
+
+	v4l2_info(sd, "-----Infoframes-----\n");
+	tda1997x_log_infoframe(sd, AUD_IF);
+	tda1997x_log_infoframe(sd, SPD_IF);
+	tda1997x_log_infoframe(sd, AVI_IF);
+
+	return 0;
+}
+
+static int tda1997x_subscribe_event(struct v4l2_subdev *sd,
+				    struct v4l2_fh *fh,
+				    struct v4l2_event_subscription *sub)
+{
+	switch (sub->type) {
+	case V4L2_EVENT_SOURCE_CHANGE:
+		return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
+	case V4L2_EVENT_CTRL:
+		return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct v4l2_subdev_core_ops tda1997x_core_ops = {
+	.log_status = tda1997x_log_status,
+	.subscribe_event = tda1997x_subscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
+/* -----------------------------------------------------------------------------
+ * v4l2_subdev_ops
+ */
+
+static const struct v4l2_subdev_ops tda1997x_subdev_ops = {
+	.core = &tda1997x_core_ops,
+	.video = &tda1997x_video_ops,
+	.pad = &tda1997x_pad_ops,
+};
+
+/* -----------------------------------------------------------------------------
+ * v4l2_controls
+ */
+
+static int tda1997x_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct v4l2_subdev *sd = to_sd(ctrl);
+	struct tda1997x_state *state = to_state(sd);
+
+	switch (ctrl->id) {
+	/* allow overriding the default RGB quantization range */
+	case V4L2_CID_DV_RX_RGB_RANGE:
+		state->range = ctrl->val;
+		tda1997x_configure_csc(sd);
+		return 0;
+	}
+
+	return -EINVAL;
+};
+
+static int tda1997x_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct v4l2_subdev *sd = to_sd(ctrl);
+	struct tda1997x_state *state = to_state(sd);
+
+	if (ctrl->id == V4L2_CID_DV_RX_IT_CONTENT_TYPE) {
+		ctrl->val = state->content;
+		return 0;
+	}
+	return -EINVAL;
+};
+
+static const struct v4l2_ctrl_ops tda1997x_ctrl_ops = {
+	.s_ctrl = tda1997x_s_ctrl,
+	.g_volatile_ctrl = tda1997x_g_volatile_ctrl,
+};
+
+static int tda1997x_core_init(struct v4l2_subdev *sd)
+{
+	struct tda1997x_state *state = to_state(sd);
+	struct tda1997x_platform_data *pdata = &state->pdata;
+	u8 reg;
+	int i;
+
+	/* disable HPD */
+	io_write(sd, REG_HPD_AUTO_CTRL, HPD_AUTO_HPD_UNSEL);
+	if (state->chip_revision == 0) {
+		io_write(sd, REG_MAN_SUS_HDMI_SEL, MAN_DIS_HDCP | MAN_RST_HDCP);
+		io_write(sd, REG_CGU_DBG_SEL, 1 << CGU_DBG_CLK_SEL_SHIFT);
+	}
+
+	/* reset infoframe at end of start-up-sequencer */
+	io_write(sd, REG_SUS_SET_RGB2, 0x06);
+	io_write(sd, REG_SUS_SET_RGB3, 0x06);
+
+	/* Enable TMDS pull-ups */
+	io_write(sd, REG_RT_MAN_CTRL, RT_MAN_CTRL_RT |
+		 RT_MAN_CTRL_RT_B | RT_MAN_CTRL_RT_A);
+
+	/* enable sync measurement timing */
+	tda1997x_cec_write(sd, REG_PWR_CONTROL & 0xff, 0x04);
+	/* adjust CEC clock divider */
+	tda1997x_cec_write(sd, REG_OSC_DIVIDER & 0xff, 0x03);
+	tda1997x_cec_write(sd, REG_EN_OSC_PERIOD_LSB & 0xff, 0xa0);
+	io_write(sd, REG_TIMER_D, 0x54);
+	/* enable power switch */
+	reg = tda1997x_cec_read(sd, REG_CONTROL & 0xff);
+	reg |= 0x20;
+	tda1997x_cec_write(sd, REG_CONTROL & 0xff, reg);
+	mdelay(50);
+
+	/* read the chip version */
+	reg = io_read(sd, REG_VERSION);
+	/* get the chip configuration */
+	reg = io_read(sd, REG_CMTP_REG10);
+
+	/* enable interrupts we care about */
+	io_write(sd, REG_INT_MASK_TOP,
+		 INTERRUPT_HDCP | INTERRUPT_AUDIO | INTERRUPT_INFO |
+		 INTERRUPT_RATE | INTERRUPT_SUS);
+	/* config_mtp,fmt,sus_end,sus_st */
+	io_write(sd, REG_INT_MASK_SUS, MASK_MPT | MASK_FMT | MASK_SUS_END);
+	/* rate stability change for inputs A/B */
+	io_write(sd, REG_INT_MASK_RATE, MASK_RATE_B_ST | MASK_RATE_A_ST);
+	/* aud,spd,avi*/
+	io_write(sd, REG_INT_MASK_INFO,
+		 MASK_AUD_IF | MASK_SPD_IF | MASK_AVI_IF);
+	/* audio_freq,audio_flg,mute_flg,fifo_err */
+	io_write(sd, REG_INT_MASK_AUDIO,
+		 MASK_AUDIO_FREQ_FLG | MASK_AUDIO_FLG | MASK_MUTE_FLG |
+		 MASK_ERROR_FIFO_PT);
+	/* HDCP C5 state reached */
+	io_write(sd, REG_INT_MASK_HDCP, MASK_STATE_C5);
+	/* 5V detect and HDP pulse end */
+	io_write(sd, REG_INT_MASK_DDC, MASK_DET_5V);
+	/* don't care about AFE/MODE */
+	io_write(sd, REG_INT_MASK_AFE, 0);
+	io_write(sd, REG_INT_MASK_MODE, 0);
+
+	/* clear all interrupts */
+	io_write(sd, REG_INT_FLG_CLR_TOP, 0xff);
+	io_write(sd, REG_INT_FLG_CLR_SUS, 0xff);
+	io_write(sd, REG_INT_FLG_CLR_DDC, 0xff);
+	io_write(sd, REG_INT_FLG_CLR_RATE, 0xff);
+	io_write(sd, REG_INT_FLG_CLR_MODE, 0xff);
+	io_write(sd, REG_INT_FLG_CLR_INFO, 0xff);
+	io_write(sd, REG_INT_FLG_CLR_AUDIO, 0xff);
+	io_write(sd, REG_INT_FLG_CLR_HDCP, 0xff);
+	io_write(sd, REG_INT_FLG_CLR_AFE, 0xff);
+
+	/* init TMDS equalizer */
+	if (state->chip_revision == 0)
+		io_write(sd, REG_CGU_DBG_SEL, 1 << CGU_DBG_CLK_SEL_SHIFT);
+	io_write24(sd, REG_CLK_MIN_RATE, CLK_MIN_RATE);
+	io_write24(sd, REG_CLK_MAX_RATE, CLK_MAX_RATE);
+	if (state->chip_revision == 0)
+		io_write(sd, REG_WDL_CFG, WDL_CFG_VAL);
+	/* DC filter */
+	io_write(sd, REG_DEEP_COLOR_CTRL, DC_FILTER_VAL);
+	/* disable test pattern */
+	io_write(sd, REG_SVC_MODE, 0x00);
+	/* update HDMI INFO CTRL */
+	io_write(sd, REG_INFO_CTRL, 0xff);
+	/* write HDMI INFO EXCEED value */
+	io_write(sd, REG_INFO_EXCEED, 3);
+
+	if (state->chip_revision == 0)
+		tda1997x_reset_n1(state);
+
+	/*
+	 * No HDCP acknowledge when HDCP is disabled
+	 * and reset SUS to force format detection
+	 */
+	tda1997x_hdmi_info_reset(sd, NACK_HDCP, true);
+
+	/* Set HPD low */
+	tda1997x_manual_hpd(sd, HPD_LOW_BP);
+
+	/* Configure receiver capabilities */
+	io_write(sd, REG_HDCP_BCAPS, HDCP_HDMI | HDCP_FAST_REAUTH);
+
+	/* Configure HDMI: Auto HDCP mode, packet controlled mute */
+	reg = HDMI_CTRL_MUTE_AUTO << HDMI_CTRL_MUTE_SHIFT;
+	reg |= HDMI_CTRL_HDCP_AUTO << HDMI_CTRL_HDCP_SHIFT;
+	io_write(sd, REG_HDMI_CTRL, reg);
+
+	/* reset start-up-sequencer to force format detection */
+	tda1997x_hdmi_info_reset(sd, 0, true);
+
+	/* disable matrix conversion */
+	reg = io_read(sd, REG_VDP_CTRL);
+	reg |= VDP_CTRL_MATRIX_BP;
+	io_write(sd, REG_VDP_CTRL, reg);
+
+	/* set video output mode */
+	tda1997x_configure_vidout(state);
+
+	/* configure video output port */
+	for (i = 0; i < 9; i++) {
+		v4l_dbg(1, debug, state->client, "vidout_cfg[%d]=0x%02x\n", i,
+			pdata->vidout_port_cfg[i]);
+		io_write(sd, REG_VP35_32_CTRL + i, pdata->vidout_port_cfg[i]);
+	}
+
+	/* configure audio output port */
+	tda1997x_configure_audout(sd, 0);
+
+	/* configure audio clock freq */
+	switch (pdata->audout_mclk_fs) {
+	case 512:
+		reg = AUDIO_CLOCK_SEL_512FS;
+		break;
+	case 256:
+		reg = AUDIO_CLOCK_SEL_256FS;
+		break;
+	case 128:
+		reg = AUDIO_CLOCK_SEL_128FS;
+		break;
+	case 64:
+		reg = AUDIO_CLOCK_SEL_64FS;
+		break;
+	case 32:
+		reg = AUDIO_CLOCK_SEL_32FS;
+		break;
+	default:
+		reg = AUDIO_CLOCK_SEL_16FS;
+		break;
+	}
+	io_write(sd, REG_AUDIO_CLOCK, reg);
+
+	/* reset advanced infoframes (ISRC1/ISRC2/ACP) */
+	tda1997x_hdmi_info_reset(sd, RESET_AI, false);
+	/* reset infoframe */
+	tda1997x_hdmi_info_reset(sd, RESET_IF, false);
+	/* reset audio infoframes */
+	tda1997x_hdmi_info_reset(sd, RESET_AUDIO, false);
+	/* reset gamut */
+	tda1997x_hdmi_info_reset(sd, RESET_GAMUT, false);
+
+	/* get initial HDMI status */
+	state->hdmi_status = io_read(sd, REG_HDMI_FLAGS);
+
+	return 0;
+}
+
+static int tda1997x_set_power(struct tda1997x_state *state, bool on)
+{
+	int ret = 0;
+
+	if (on) {
+		ret = regulator_bulk_enable(TDA1997X_NUM_SUPPLIES,
+					     state->supplies);
+		msleep(300);
+	}
+
+	ret = regulator_bulk_disable(TDA1997X_NUM_SUPPLIES,
+			       state->supplies);
+	return ret;
+}
+
+static const struct i2c_device_id tda1997x_i2c_id[] = {
+	{"tda19971", (kernel_ulong_t)&tda1997x_chip_info[TDA19971]},
+	{"tda19973", (kernel_ulong_t)&tda1997x_chip_info[TDA19973]},
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, tda1997x_i2c_id);
+
+static const struct of_device_id tda1997x_of_id[] __maybe_unused = {
+	{ .compatible = "nxp,tda19971", .data = &tda1997x_chip_info[TDA19971] },
+	{ .compatible = "nxp,tda19973", .data = &tda1997x_chip_info[TDA19973] },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, tda1997x_of_id);
+
+static int tda1997x_parse_dt(struct tda1997x_state *state)
+{
+	struct tda1997x_platform_data *pdata = &state->pdata;
+	struct v4l2_fwnode_endpoint bus_cfg;
+	struct device_node *ep;
+	struct device_node *np;
+	unsigned int flags;
+	const char *str;
+	int ret;
+	u32 v;
+
+	/*
+	 * setup default values:
+	 * - HREF: active high from start to end of row
+	 * - VS: Vertical Sync active high at beginning of frame
+	 * - DE: Active high when data valid
+	 * - A_CLK: 128*Fs
+	 */
+	pdata->vidout_sel_hs = HS_HREF_SEL_HREF_VHREF;
+	pdata->vidout_sel_vs = VS_VREF_SEL_VREF_HDMI;
+	pdata->vidout_sel_de = DE_FREF_SEL_DE_VHREF;
+
+	np = state->client->dev.of_node;
+	ep = of_graph_get_next_endpoint(np, NULL);
+	if (!ep)
+		return -EINVAL;
+
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
+	if (ret) {
+		of_node_put(ep);
+		return ret;
+	}
+	of_node_put(ep);
+
+	/* polarity of HS/VS/DE */
+	flags = bus_cfg.bus.parallel.flags;
+	if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
+		pdata->vidout_inv_hs = 1;
+	if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
+		pdata->vidout_inv_vs = 1;
+	if (flags & V4L2_MBUS_DATA_ACTIVE_LOW)
+		pdata->vidout_inv_de = 1;
+	pdata->vidout_bus_width = bus_cfg.bus.parallel.bus_width;
+
+	/* video output port config */
+	ret = of_property_count_u32_elems(np, "nxp,vidout-portcfg");
+	if (ret > 0) {
+		u32 reg, val, i;
+
+		for (i = 0; i < ret / 2 && i < 9; i++) {
+			of_property_read_u32_index(np, "nxp,vidout-portcfg",
+						   i * 2, &reg);
+			of_property_read_u32_index(np, "nxp,vidout-portcfg",
+						   i * 2 + 1, &val);
+			if (reg < 9)
+				pdata->vidout_port_cfg[reg] = val;
+		}
+	} else {
+		v4l_err(state->client, "nxp,vidout-portcfg missing\n");
+		return -EINVAL;
+	}
+
+	/* default to channel layout dictated by packet header */
+	pdata->audout_layoutauto = true;
+
+	pdata->audout_format = AUDFMT_TYPE_DISABLED;
+	if (!of_property_read_string(np, "nxp,audout-format", &str)) {
+		if (strcmp(str, "i2s") == 0)
+			pdata->audout_format = AUDFMT_TYPE_I2S;
+		else if (strcmp(str, "spdif") == 0)
+			pdata->audout_format = AUDFMT_TYPE_SPDIF;
+		else {
+			v4l_err(state->client, "nxp,audout-format invalid\n");
+			return -EINVAL;
+		}
+		if (!of_property_read_u32(np, "nxp,audout-layout", &v)) {
+			switch (v) {
+			case 0:
+			case 1:
+				break;
+			default:
+				v4l_err(state->client,
+					"nxp,audout-layout invalid\n");
+				return -EINVAL;
+			}
+			pdata->audout_layout = v;
+		}
+		if (!of_property_read_u32(np, "nxp,audout-width", &v)) {
+			switch (v) {
+			case 16:
+			case 32:
+				break;
+			default:
+				v4l_err(state->client,
+					"nxp,audout-width invalid\n");
+				return -EINVAL;
+			}
+			pdata->audout_width = v;
+		}
+		if (!of_property_read_u32(np, "nxp,audout-mclk-fs", &v)) {
+			switch (v) {
+			case 512:
+			case 256:
+			case 128:
+			case 64:
+			case 32:
+			case 16:
+				break;
+			default:
+				v4l_err(state->client,
+					"nxp,audout-mclk-fs invalid\n");
+				return -EINVAL;
+			}
+			pdata->audout_mclk_fs = v;
+		}
+	}
+
+	return 0;
+}
+
+static int tda1997x_get_regulators(struct tda1997x_state *state)
+{
+	int i;
+
+	for (i = 0; i < TDA1997X_NUM_SUPPLIES; i++)
+		state->supplies[i].supply = tda1997x_supply_name[i];
+
+	return devm_regulator_bulk_get(&state->client->dev,
+				       TDA1997X_NUM_SUPPLIES,
+				       state->supplies);
+}
+
+static int tda1997x_identify_module(struct tda1997x_state *state)
+{
+	struct v4l2_subdev *sd = &state->sd;
+	enum tda1997x_type type;
+	u8 reg;
+
+	/* Read chip configuration*/
+	reg = io_read(sd, REG_CMTP_REG10);
+	state->tmdsb_clk = (reg >> 6) & 0x01; /* use tmds clock B_inv for B */
+	state->tmdsb_soc = (reg >> 5) & 0x01; /* tmds of input B */
+	state->port_30bit = (reg >> 2) & 0x03; /* 30bit vs 24bit */
+	state->output_2p5 = (reg >> 1) & 0x01; /* output supply 2.5v */
+	switch ((reg >> 4) & 0x03) {
+	case 0x00:
+		type = TDA19971;
+		break;
+	case 0x02:
+	case 0x03:
+		type = TDA19973;
+		break;
+	default:
+		dev_err(&state->client->dev, "unsupported chip ID\n");
+		return -EIO;
+	}
+	if (state->info->type != type) {
+		dev_err(&state->client->dev, "chip id mismatch\n");
+		return -EIO;
+	}
+
+	/* read chip revision */
+	state->chip_revision = io_read(sd, REG_CMTP_REG11);
+
+	return 0;
+}
+
+static const struct media_entity_operations tda1997x_media_ops = {
+	.link_validate = v4l2_subdev_link_validate,
+};
+
+
+/* -----------------------------------------------------------------------------
+ * HDMI Audio Codec
+ */
+
+/* refine sample-rate based on HDMI source */
+static int tda1997x_pcm_startup(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct tda1997x_state *state = snd_soc_dai_get_drvdata(dai);
+	struct snd_soc_codec *codec = dai->codec;
+	struct snd_pcm_runtime *rtd = substream->runtime;
+	int rate, err;
+
+	rate = state->audio_samplerate;
+	err = snd_pcm_hw_constraint_minmax(rtd, SNDRV_PCM_HW_PARAM_RATE,
+					   rate, rate);
+	if (err < 0) {
+		dev_err(codec->dev, "failed to constrain samplerate to %dHz\n",
+			rate);
+		return err;
+	}
+	dev_info(codec->dev, "set samplerate constraint to %dHz\n", rate);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops tda1997x_dai_ops = {
+	.startup = tda1997x_pcm_startup,
+};
+
+static struct snd_soc_dai_driver tda1997x_audio_dai = {
+	.name = "tda1997x",
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 2,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
+			 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
+			 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
+			 SNDRV_PCM_RATE_192000,
+	},
+	.ops = &tda1997x_dai_ops,
+};
+
+static int tda1997x_codec_probe(struct snd_soc_codec *codec)
+{
+	return 0;
+}
+
+static int tda1997x_codec_remove(struct snd_soc_codec *codec)
+{
+	return 0;
+}
+
+static struct snd_soc_codec_driver tda1997x_codec_driver = {
+	.probe = tda1997x_codec_probe,
+	.remove = tda1997x_codec_remove,
+	.reg_word_size = sizeof(u16),
+};
+
+static int tda1997x_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct tda1997x_state *state;
+	struct tda1997x_platform_data *pdata;
+	struct v4l2_subdev *sd;
+	struct v4l2_ctrl_handler *hdl;
+	struct v4l2_ctrl *ctrl;
+	static const struct v4l2_dv_timings cea1920x1080 =
+		V4L2_DV_BT_CEA_1920X1080P60;
+	int ret;
+
+	/* Check if the adapter supports the needed features */
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -EIO;
+
+	state = kzalloc(sizeof(struct tda1997x_state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	state->client = client;
+	pdata = &state->pdata;
+	if (IS_ENABLED(CONFIG_OF) && client->dev.of_node) {
+		const struct of_device_id *oid;
+
+		oid = of_match_node(tda1997x_of_id, client->dev.of_node);
+		state->info = oid->data;
+
+		ret = tda1997x_parse_dt(state);
+		if (ret < 0) {
+			v4l_err(client, "DT parsing error\n");
+			goto err_free_state;
+		}
+	} else if (client->dev.platform_data) {
+		struct tda1997x_platform_data *pdata =
+			client->dev.platform_data;
+		state->info =
+			(const struct tda1997x_chip_info *)id->driver_data;
+		state->pdata = *pdata;
+	} else {
+		v4l_err(client, "No platform data\n");
+		ret = -ENODEV;
+		goto err_free_state;
+	}
+
+	ret = tda1997x_get_regulators(state);
+	if (ret)
+		goto err_free_state;
+
+	ret = tda1997x_set_power(state, 1);
+	if (ret)
+		goto err_free_state;
+
+	mutex_init(&state->page_lock);
+	mutex_init(&state->lock);
+	state->page = 0xff;
+
+	INIT_DELAYED_WORK(&state->delayed_work_enable_hpd,
+			  tda1997x_delayed_work_enable_hpd);
+
+	/* set video format based on chip and bus width */
+	ret = tda1997x_identify_module(state);
+	if (ret)
+		goto err_free_mutex;
+
+	/* initialize subdev */
+	sd = &state->sd;
+	v4l2_i2c_subdev_init(sd, client, &tda1997x_subdev_ops);
+	snprintf(sd->name, sizeof(sd->name), "%s %d-%04x",
+		 id->name, i2c_adapter_id(client->adapter),
+		 client->addr);
+	sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
+	sd->entity.ops = &tda1997x_media_ops;
+
+	switch (state->info->type) {
+	case TDA19973:
+		switch (pdata->vidout_bus_width) {
+		case 36: /* 36bit RGB (could also be 36bit YUV) */
+			state->code = MEDIA_BUS_FMT_YUV12_1X36;
+			break;
+		case 24: /* 24bit BT656 (YUV422 semi-planar: 1-cycle) */
+			state->code = MEDIA_BUS_FMT_UYVY12_1X24;
+			break;
+		case 12: /* 12bit BT656 (2-cycle) */
+			state->code = MEDIA_BUS_FMT_UYVY12_2X12;
+			break;
+		}
+		break;
+	case TDA19971:
+		switch (pdata->vidout_bus_width) {
+		case 24: /* 24bit YUV (could also be RGB or YUV422) */
+			state->code = MEDIA_BUS_FMT_YUV8_1X24;
+			break;
+		case 20: /* 20bit YUV422 */
+			state->code = MEDIA_BUS_FMT_UYVY10_1X20;
+			break;
+		case 16: /* 16bit BT656 (YUV422 semi-planar: 1-cycle) */
+			state->code = MEDIA_BUS_FMT_UYVY8_1X16;
+			break;
+		case 12: /* 12bit BT656 (2-cycle) */
+			state->code = MEDIA_BUS_FMT_UYVY12_2X12;
+			break;
+		case 10: /* 10bit BT656 (2-cycle) */
+			state->code = MEDIA_BUS_FMT_UYVY10_2X10;
+			break;
+		case 8: /* 8bit BT656 (2-cycle) */
+			state->code = MEDIA_BUS_FMT_UYVY8_2X8;
+			break;
+		}
+	}
+	switch (state->code) {
+	case MEDIA_BUS_FMT_RGB121212_1X36:
+	case MEDIA_BUS_FMT_RGB888_1X24:
+	case MEDIA_BUS_FMT_YUV12_1X36:
+	case MEDIA_BUS_FMT_YUV8_1X24:
+		state->bus_type = V4L2_MBUS_PARALLEL;
+		state->vid_fmt = OF_FMT_444;
+		break;
+	case MEDIA_BUS_FMT_UYVY12_1X24:
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+		state->bus_type = V4L2_MBUS_BT656;
+		state->vid_fmt = OF_FMT_422_SMPT;
+		break;
+	case MEDIA_BUS_FMT_UYVY12_2X12:
+	case MEDIA_BUS_FMT_UYVY10_2X10:
+	case MEDIA_BUS_FMT_UYVY8_2X8:
+		state->bus_type = V4L2_MBUS_BT656;
+		state->vid_fmt = OF_FMT_422_CCIR;
+		break;
+	default:
+		v4l_err(state->client, "incompatible code (%x)\n", state->code);
+		ret = -EINVAL;
+		goto err_free_mutex;
+	}
+	state->colorspace = HDMI_COLORSPACE_RGB;
+	state->colorimetry = HDMI_COLORIMETRY_NONE;
+	state->timings = cea1920x1080;
+
+	/* disable/reset HDCP to get correct I2C access to Rx HDMI */
+	io_write(sd, REG_MAN_SUS_HDMI_SEL, MAN_RST_HDCP | MAN_DIS_HDCP);
+
+	/*
+	 * if N2 version, reset compdel_bp as it may generate some small pixel
+	 * shifts in case of embedded sync/or delay lower than 4
+	 */
+	if (state->chip_revision != 0) {
+		io_write(sd, REG_MAN_SUS_HDMI_SEL, 0x00);
+		io_write(sd, REG_VDP_CTRL, 0x1f);
+	}
+
+	v4l_info(client, "NXP %s N%d detected\n", state->info->name,
+		 state->chip_revision + 1);
+	v4l_info(client, "video: %dbit %s %s MBUS_FMT=0x%x\n",
+		pdata->vidout_bus_width,
+		(state->bus_type == V4L2_MBUS_PARALLEL) ? "parallel" : "BT656",
+		vidfmt_names[state->vid_fmt],
+		state->code);
+	if (pdata->audout_format) {
+		v4l_info(client, "audio: %dch %s layout%d sysclk=%d*fs\n",
+			 pdata->audout_layout ? 2 : 8,
+			 audfmt_names[pdata->audout_format],
+			 pdata->audout_layout,
+			 pdata->audout_mclk_fs);
+	}
+
+	ret = 0x34 + ((io_read(sd, REG_SLAVE_ADDR)>>4) & 0x03);
+	state->client_cec = i2c_new_dummy(client->adapter, ret);
+	v4l_info(client, "CEC slave address 0x%02x\n", ret);
+
+	ret = tda1997x_core_init(sd);
+	if (ret)
+		goto err_free_mutex;
+
+	/* control handlers */
+	hdl = &state->hdl;
+	v4l2_ctrl_handler_init(hdl, 5);
+	ctrl = v4l2_ctrl_new_std_menu(hdl, &tda1997x_ctrl_ops,
+			V4L2_CID_DV_RX_IT_CONTENT_TYPE,
+			V4L2_DV_IT_CONTENT_TYPE_NO_ITC, 0,
+			V4L2_DV_IT_CONTENT_TYPE_NO_ITC);
+	if (ctrl)
+		ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
+	/* custom controls */
+	state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL,
+			V4L2_CID_DV_RX_POWER_PRESENT, 0, 1, 0, 0);
+	state->rgb_quantization_range_ctrl = v4l2_ctrl_new_std_menu(hdl,
+			&tda1997x_ctrl_ops,
+			V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL, 0,
+			V4L2_DV_RGB_RANGE_AUTO);
+
+	/* initialize source pads */
+	state->pads[TDA1997X_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+	ret = media_entity_pads_init(&sd->entity, TDA1997X_NUM_PADS,
+		state->pads);
+	if (ret) {
+		v4l_err(client, "failed entity_init: %d", ret);
+		goto err_free_mutex;
+	}
+
+	ret = v4l2_async_register_subdev(sd);
+	if (ret)
+		goto err_free_media;
+
+	/* register audio DAI */
+	if (pdata->audout_format) {
+		u64 formats;
+
+		if (pdata->audout_width == 32)
+			formats = SNDRV_PCM_FMTBIT_S32_LE;
+		else
+			formats = SNDRV_PCM_FMTBIT_S16_LE;
+		tda1997x_audio_dai.capture.formats = formats;
+		ret = snd_soc_register_codec(&state->client->dev,
+					     &tda1997x_codec_driver,
+					     &tda1997x_audio_dai, 1);
+		if (ret) {
+			dev_err(&client->dev, "register audio codec failed\n");
+			goto err_free_media;
+		}
+		dev_set_drvdata(&state->client->dev, state);
+		v4l_info(state->client, "registered audio codec\n");
+	}
+
+	/* request irq */
+	ret = devm_request_threaded_irq(&client->dev, client->irq,
+					NULL, tda1997x_isr_thread,
+					IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+					KBUILD_MODNAME, state);
+	if (ret) {
+		v4l_err(client, "irq%d reg failed: %d\n", client->irq, ret);
+		goto err_free_media;
+	}
+
+	return 0;
+
+err_free_media:
+	media_entity_cleanup(&sd->entity);
+err_free_mutex:
+	cancel_delayed_work(&state->delayed_work_enable_hpd);
+	mutex_destroy(&state->page_lock);
+	mutex_destroy(&state->lock);
+err_free_state:
+	kfree(state);
+	dev_err(&client->dev, "%s failed: %d\n", __func__, ret);
+
+	return ret;
+}
+
+static int tda1997x_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct tda1997x_state *state = to_state(sd);
+	struct tda1997x_platform_data *pdata = &state->pdata;
+
+	if (pdata->audout_format) {
+		snd_soc_unregister_codec(&client->dev);
+		mutex_destroy(&state->audio_lock);
+	}
+
+	disable_irq(state->client->irq);
+	tda1997x_power_mode(state, 0);
+
+	v4l2_async_unregister_subdev(sd);
+	media_entity_cleanup(&sd->entity);
+	regulator_bulk_disable(TDA1997X_NUM_SUPPLIES, state->supplies);
+	i2c_unregister_device(state->client_cec);
+	cancel_delayed_work(&state->delayed_work_enable_hpd);
+	mutex_destroy(&state->page_lock);
+	mutex_destroy(&state->lock);
+
+	kfree(state);
+
+	return 0;
+}
+
+static struct i2c_driver tda1997x_i2c_driver = {
+	.driver = {
+		.name = "tda1997x",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(tda1997x_of_id),
+	},
+	.probe = tda1997x_probe,
+	.remove = tda1997x_remove,
+	.id_table = tda1997x_i2c_id,
+};
+
+module_i2c_driver(tda1997x_i2c_driver);
+
+MODULE_AUTHOR("Tim Harvey <tharvey@gateworks.com>");
+MODULE_DESCRIPTION("TDA1997X HDMI Receiver driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/dt-bindings/media/tda1997x.h b/include/dt-bindings/media/tda1997x.h
new file mode 100644
index 0000000..f4cdf87
--- /dev/null
+++ b/include/dt-bindings/media/tda1997x.h
@@ -0,0 +1,78 @@ 
+/*
+ * Copyright (C) 2017 Gateworks Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef _DT_BINDINGS_MEDIA_TDA1997X_H
+#define _DT_BINDINGS_MEDIA_TDA1997X_H
+
+/* TDA19973 36bit Video Port control registers */
+#define TDA1997X_VP36_35_32	0
+#define TDA1997X_VP36_31_28	1
+#define TDA1997X_VP36_27_24	2
+#define TDA1997X_VP36_23_20	3
+#define TDA1997X_VP36_19_16	4
+#define TDA1997X_VP36_15_12	5
+#define TDA1997X_VP36_11_08	6
+#define TDA1997X_VP36_07_04	7
+#define TDA1997X_VP36_03_00	8
+
+/* TDA19971 24bit Video Port control registers */
+#define TDA1997X_VP24_V23_20	0
+#define TDA1997X_VP24_V19_16	1
+#define TDA1997X_VP24_V15_12	3
+#define TDA1997X_VP24_V11_08	4
+#define TDA1997X_VP24_V07_04	6
+#define TDA1997X_VP24_V03_00	7
+
+/* Pin groups */
+#define TDA1997X_VP_OUT_EN        0x80	/* enable output group */
+#define TDA1997X_VP_HIZ           0x40	/* hi-Z output group when not used */
+#define TDA1997X_VP_SWP           0x10	/* pin-swap output group */
+#define TDA1997X_R_CR_CBCR_3_0    (0 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+#define TDA1997X_R_CR_CBCR_7_4    (1 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+#define TDA1997X_R_CR_CBCR_11_8   (2 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+#define TDA1997X_B_CB_3_0         (3 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+#define TDA1997X_B_CB_7_4         (4 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+#define TDA1997X_B_CB_11_8        (5 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+#define TDA1997X_G_Y_3_0          (6 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+#define TDA1997X_G_Y_7_4          (7 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+#define TDA1997X_G_Y_11_8         (8 | TDA1997X_VP_OUT_EN | TDA1997X_VP_HIZ)
+/* pinswapped groups */
+#define TDA1997X_R_CR_CBCR_3_0_S  (TDA1997X_R_CR_CBCR_3_0 | TDA1997X_VP_SWAP)
+#define TDA1997X_R_CR_CBCR_7_4_S  (TDA1997X_R_CR_CBCR_7_4 | TDA1997X_VP_SWAP)
+#define TDA1997X_R_CR_CBCR_11_8_S (TDA1997X_R_CR_CBCR_11_8 | TDA1997X_VP_SWAP)
+#define TDA1997X_B_CB_3_0_S       (TDA1997X_B_CB_3_0 | TDA1997X_VP_SWAP)
+#define TDA1997X_B_CB_7_4_S       (TDA1997X_B_CB_7_4 | TDA1997X_VP_SWAP)
+#define TDA1997X_B_CB_11_8_S      (TDA1997X_B_CB_11_8 | TDA1997X_VP_SWAP)
+#define TDA1997X_G_Y_3_0_S        (TDA1997X_G_Y_3_0 | TDA1997X_VP_SWAP)
+#define TDA1997X_G_Y_7_4_S        (TDA1997X_G_Y_7_4 | TDA1997X_VP_SWAP)
+#define TDA1997X_G_Y_11_8_S       (TDA1997X_G_Y_11_8 | TDA1997X_VP_SWAP)
+
+/* Audio bus DAI format */
+#define TDA1997X_I2S16			1 /* I2S 16bit */
+#define TDA1997X_I2S32			2 /* I2S 32bit */
+#define TDA1997X_SPDIF			3 /* SPDIF */
+#define TDA1997X_OBA			4 /* One Bit Audio */
+#define TDA1997X_DST			5 /* Direct Stream Transfer */
+#define TDA1997X_I2S16_HBR		6 /* HBR straight in I2S 16bit mode */
+#define TDA1997X_I2S16_HBR_DEMUX	7 /* HBR demux in I2S 16bit mode */
+#define TDA1997X_I2S32_HBR_DEMUX	8 /* HBR demux in I2S 32bit mode */
+#define TDA1997X_SPDIF_HBR_DEMUX	9 /* HBR demux in SPDIF mode */
+
+/* Audio bus channel layout */
+#define TDA1997X_LAYOUT0	0	/* 2-channel */
+#define TDA1997X_LAYOUT1	1	/* 8-channel */
+
+/* Audio bus clock */
+#define TDA1997X_ACLK_16FS	0
+#define TDA1997X_ACLK_32FS	1
+#define TDA1997X_ACLK_64FS	2
+#define TDA1997X_ACLK_128FS	3
+#define TDA1997X_ACLK_256FS	4
+#define TDA1997X_ACLK_512FS	5
+
+#endif /* _DT_BINDINGS_MEDIA_TDA1997X_H */
diff --git a/include/media/i2c/tda1997x.h b/include/media/i2c/tda1997x.h
new file mode 100644
index 0000000..50cb847
--- /dev/null
+++ b/include/media/i2c/tda1997x.h
@@ -0,0 +1,53 @@ 
+/*
+ * tda1997x - NXP HDMI receiver
+ *
+ * Copyright 2017 Tim Harvey <tharvey@gateworks.com>
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef _TDA1997X_
+#define _TDA1997X_
+
+/* Platform Data */
+struct tda1997x_platform_data {
+	u32 vidout_bus_width;
+	u8 vidout_port_cfg[9];
+	/* pin polarity (1=invert) */
+	bool vidout_inv_de;
+	bool vidout_inv_hs;
+	bool vidout_inv_vs;
+	bool vidout_inv_pclk;
+	/* clock delays (0=-8, 1=-7 ... 15=+7 pixels) */
+	u8 vidout_delay_hs;
+	u8 vidout_delay_vs;
+	u8 vidout_delay_de;
+	u8 vidout_delay_pclk;
+	/* sync selections (controls how sync pins are derived) */
+	u8 vidout_sel_hs;
+	u8 vidout_sel_vs;
+	u8 vidout_sel_de;
+
+	/* Audio Port Output */
+	int audout_format;
+	u32 audout_mclk_fs;	/* clock multiplier */
+	u32 audout_width;	/* 13 or 32 bit */
+	u32 audout_layout;	/* layout0=AP0 layout1=AP0,AP1,AP2,AP3 */
+	bool audout_layoutauto;	/* audio layout dictated by pkt header */
+	bool audout_invert_clk;	/* data valid on rising edge of BCLK */
+	bool audio_auto_mute;	/* enable hardware audio auto-mute */
+};
+
+#endif