From c5dbae7c19856171e0580f490dfb3d667466e8f3 Mon Sep 17 00:00:00 2001 From: Paul Kocialkowski Date: Sat, 27 Feb 2016 19:18:49 +0100 Subject: power: twl6030: Some more explicit registers and values definitions This makes the twl6030 mmc and usb-related power registers and values definitions more explicit and clear and adds prefixes to them. Signed-off-by: Paul Kocialkowski --- drivers/power/twl6030.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) (limited to 'drivers/power') diff --git a/drivers/power/twl6030.c b/drivers/power/twl6030.c index a1c6663a2e..8924f7f0e9 100644 --- a/drivers/power/twl6030.c +++ b/drivers/power/twl6030.c @@ -214,22 +214,26 @@ void twl6030_init_battery_charging(void) void twl6030_power_mmc_init() { - /* set voltage to 3.0 and turnon for APP */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, VMMC_CFG_VOLTATE, 0x15); - twl6030_i2c_write_u8(TWL6030_CHIP_PM, VMMC_CFG_STATE, 0x21); + /* 3.0V voltage output for VMMC */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VMMC_CFG_VOLTAGE, + TWL6030_CFG_VOLTAGE_30); + + /* Enable P1 output for VMMC */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VMMC_CFG_STATE, + TWL6030_CFG_STATE_P1 | TWL6030_CFG_STATE_ON); } void twl6030_usb_device_settings() { - u8 data = 0; - - /* Select APP Group and set state to ON */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, VUSB_CFG_STATE, 0x21); + u8 value = 0; - twl6030_i2c_read_u8(TWL6030_CHIP_PM, MISC2, &data); - data |= 0x10; + /* Enable P1 output for VUSB */ + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VUSB_CFG_STATE, + TWL6030_CFG_STATE_P1 | TWL6030_CFG_STATE_ON); - /* Select the input supply for VBUS regulator */ - twl6030_i2c_write_u8(TWL6030_CHIP_PM, MISC2, data); + /* Select the input supply for VUSB regulator */ + twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_MISC2, &value); + value |= TWL6030_MISC2_VUSB_IN_VSYS; + twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_MISC2, value); } #endif -- cgit v1.2.1