diff mbox

[v8,4/7] pinctrl: freescale: imx: allow mux_reg offset zero

Message ID 1443629469-12294-4-git-send-email-aalonso@freescale.com
State New
Headers show

Commit Message

Adrian Alonso Sept. 30, 2015, 4:11 p.m. UTC
Allow mux_reg offset zero to be a valid pin_id, on imx7d
mux_conf reg offset is zero for iomuxc-lspr controller

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
---
Changes for V2: Resend
Changes for V3: Resend
Changes for V4: Simplify pin_id assigment when ZERO_OFFSET_VALID is set
Changes for V5:
- Drop patch pinctrl: freescale: imx: add ZERO_OFFSET_VALID flag
- Allow mux_reg ZERO OFFSET as pin_id
Changes for V6: Restore ZERO_OFFSET_VALID flag
Changes for V7: Resend
Changes for V8: Resend

 drivers/pinctrl/freescale/pinctrl-imx.c | 5 ++++-
 drivers/pinctrl/freescale/pinctrl-imx.h | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

Comments

Linus Walleij Oct. 2, 2015, 9:42 p.m. UTC | #1
On Wed, Sep 30, 2015 at 9:11 AM, Adrian Alonso <aalonso@freescale.com> wrote:

> Allow mux_reg offset zero to be a valid pin_id, on imx7d
> mux_conf reg offset is zero for iomuxc-lspr controller
>
> Signed-off-by: Adrian Alonso <aalonso@freescale.com>
> ---
> Changes for V2: Resend
> Changes for V3: Resend
> Changes for V4: Simplify pin_id assigment when ZERO_OFFSET_VALID is set
> Changes for V5:
> - Drop patch pinctrl: freescale: imx: add ZERO_OFFSET_VALID flag
> - Allow mux_reg ZERO OFFSET as pin_id
> Changes for V6: Restore ZERO_OFFSET_VALID flag
> Changes for V7: Resend
> Changes for V8: Resend

Ugh patches come out quickly. I see this is identical to the
v6 I applied so keeping the applied version.

Yours,
Linus Walleij
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diff mbox

Patch

diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index b9c6deb..151d50d 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -542,6 +542,9 @@  static int imx_pinctrl_parse_groups(struct device_node *np,
 		struct imx_pin_reg *pin_reg;
 		struct imx_pin *pin = &grp->pins[i];
 
+		if (!(info->flags & ZERO_OFFSET_VALID) && !mux_reg)
+			mux_reg = -1;
+
 		if (info->flags & SHARE_MUX_CONF_REG) {
 			conf_reg = mux_reg;
 		} else {
@@ -550,7 +553,7 @@  static int imx_pinctrl_parse_groups(struct device_node *np,
 				conf_reg = -1;
 		}
 
-		pin_id = mux_reg ? mux_reg / 4 : conf_reg / 4;
+		pin_id = (mux_reg != -1) ? mux_reg / 4 : conf_reg / 4;
 		pin_reg = &info->pin_regs[pin_id];
 		pin->pin = pin_id;
 		grp->pin_ids[i] = pin_id;
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h b/drivers/pinctrl/freescale/pinctrl-imx.h
index 2a5fe72..2a592f6 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.h
+++ b/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -85,6 +85,7 @@  struct imx_pinctrl_soc_info {
 };
 
 #define SHARE_MUX_CONF_REG	0x1
+#define ZERO_OFFSET_VALID	0x2
 
 #define NO_MUX		0x0
 #define NO_PAD		0x0