This explicitly sets VUSB voltage to 3.3V when enabling USB.
Signed-off-by: Paul Kocialkowski contact@paulk.fr --- drivers/power/twl6030.c | 4 ++++ include/twl6030.h | 2 ++ 2 files changed, 6 insertions(+)
diff --git a/drivers/power/twl6030.c b/drivers/power/twl6030.c index 7ed9129..df43cca 100644 --- a/drivers/power/twl6030.c +++ b/drivers/power/twl6030.c @@ -248,6 +248,10 @@ void twl6030_usb_device_settings() { u8 value = 0;
+ /* 3.3V voltage output for VUSB */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VUSB_CFG_VOLTAGE, + TWL6030_CFG_VOLTAGE_33); + /* Enable P1 output for VUSB */ twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VUSB_CFG_STATE, TWL6030_CFG_STATE_P1 | TWL6030_CFG_STATE_ON); diff --git a/include/twl6030.h b/include/twl6030.h index 04295c9..e68393c 100644 --- a/include/twl6030.h +++ b/include/twl6030.h @@ -32,6 +32,7 @@ #define TWL6030_VMMC_CFG_STATE 0x9A #define TWL6030_VMMC_CFG_VOLTAGE 0x9B #define TWL6030_VUSB_CFG_STATE 0xA2 +#define TWL6030_VUSB_CFG_VOLTAGE 0xA3
#define TWL6030_CFG_GRP_P1 (1 << 0) #define TWL6030_CFG_STATE_ON (1 << 0) @@ -39,6 +40,7 @@ #define TWL6030_CFG_VOLTAGE_18 0x09 #define TWL6030_CFG_VOLTAGE_28 0x13 #define TWL6030_CFG_VOLTAGE_30 0x15 +#define TWL6030_CFG_VOLTAGE_33 0x18
#define MISC1 0xE4 #define VAC_MEAS (1 << 2)