Patchwork [U-Boot,1/5] ARM: OMAP5: Power: Add new function to turn on SMPS10

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Submitter Dan Murphy
Date Aug. 26, 2013, 1:54 p.m.
Message ID <1377525293-31508-2-git-send-email-dmurphy@ti.com>
Download mbox | patch
Permalink /patch/269890/
State Awaiting Upstream
Delegated to: Marek Vasut
Headers show

Comments

Dan Murphy - Aug. 26, 2013, 1:54 p.m.
Add new functionality to turn on SMPS10 regulator.
This supplies the VBUS to devices connected to the
USB host ports

Signed-off-by: Dan Murphy <dmurphy@ti.com>
---
 drivers/power/palmas.c |   15 +++++++++++++++
 include/palmas.h       |    6 ++++++
 2 files changed, 21 insertions(+)

Patch

diff --git a/drivers/power/palmas.c b/drivers/power/palmas.c
index c7b0cbe..cfbc9dc 100644
--- a/drivers/power/palmas.c
+++ b/drivers/power/palmas.c
@@ -127,6 +127,21 @@  int twl603x_audio_power(u8 on)
 }
 #endif
 
+#ifdef CONFIG_PALMAS_USB_SS_PWR
+/**
+ * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations
+ * for the USB Super speed SMPS10 regulator.
+ *
+ * @return 0
+ */
+int palmas_enable_ss_ldo(void)
+{
+	/* Enable smps10 regulator  */
+	return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL,
+				SMPS10_MODE_ACTIVE_D);
+}
+#endif
+
 /*
  * Enable/disable back-up battery (or super cap) charging on TWL6035/37.
  * Please use defined BB_xxx values.
diff --git a/include/palmas.h b/include/palmas.h
index f74f08e..eaf3670 100644
--- a/include/palmas.h
+++ b/include/palmas.h
@@ -31,6 +31,7 @@ 
 /* LDOUSB control/voltage */
 #define LDOUSB_CTRL		0x64
 #define LDOUSB_VOLTAGE		0x65
+#define LDO_CTRL		0x6a
 
 /* Control of 32 kHz audio clock */
 #define CLK32KGAUDIO_CTRL	0xd5
@@ -62,6 +63,10 @@ 
 #define SMPS9_CTRL		0x38
 #define SMPS9_VOLTAGE		0x3b
 
+/* SMPS10_CTRL */
+#define SMPS10_CTRL		0x3c
+#define SMPS10_MODE_ACTIVE_D	0x0d
+
 /* Bit field definitions for SMPSx_CTRL */
 #define SMPS_MODE_ACT_AUTO	1
 #define SMPS_MODE_ACT_ECO	2
@@ -114,5 +119,6 @@  int palmas_mmc1_poweron_ldo(void);
 int twl603x_mmc1_set_ldo9(u8 vsel);
 int twl603x_audio_power(u8 on);
 int twl603x_enable_bb_charge(u8 bb_fields);
+int palmas_enable_ss_ldo(void);
 
 #endif /* PALMAS_H */