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power: twl6030: Configure VUSB voltage on USB device setup

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This explicitly sets VUSB voltage to 3.3V when enabling USB.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
This commit is contained in:
Paul Kocialkowski 2016-02-27 19:19:03 +01:00 committed by Tom Rini
parent 6e495a453f
commit 0343f71f09
2 changed files with 6 additions and 0 deletions
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4
drivers/power/twl6030.c
View File

@ -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);

2
include/twl6030.h
View File

@ -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)