diff options
| -rw-r--r-- | drivers/power/twl4030.c | 60 | ||||
| -rw-r--r-- | include/twl4030.h | 32 |
2 files changed, 84 insertions, 8 deletions
diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c index 7f1fdd1..8866bf1 100644 --- a/drivers/power/twl4030.c +++ b/drivers/power/twl4030.c @@ -46,6 +46,66 @@ void twl4030_power_reset_init(void) } /* + * Power off + */ +void twl4030_power_off(void) +{ + u8 data; + + /* PM master unlock (CFG and TST keys) */ + + data = 0xCE; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_PROTECT_KEY, data); + data = 0xEC; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_PROTECT_KEY, data); + + /* VBAT start disable */ + + twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_CFG_P1_TRANSITION, &data); + data &= ~TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_VBAT; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_CFG_P1_TRANSITION, data); + + twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_CFG_P2_TRANSITION, &data); + data &= ~TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_VBAT; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_CFG_P2_TRANSITION, data); + + twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_CFG_P3_TRANSITION, &data); + data &= ~TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_VBAT; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_CFG_P3_TRANSITION, data); + + /* High jitter for PWRANA2 */ + + twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_CFG_PWRANA2, &data); + data &= ~(TWL4030_PM_MASTER_CFG_PWRANA2_LOJIT0_LOWV | + TWL4030_PM_MASTER_CFG_PWRANA2_LOJIT1_LOWV); + twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_CFG_PWRANA2, data); + + /* PM master lock */ + + data = 0xFF; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_PROTECT_KEY, data); + + /* Power off */ + + twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_P1_SW_EVENTS, &data); + data |= TWL4030_PM_MASTER_SW_EVENTS_DEVOFF; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, + TWL4030_PM_MASTER_P1_SW_EVENTS, data); +} + +/* * Set Device Group and Voltage */ void twl4030_pmrecv_vsel_cfg(u8 vsel_reg, u8 vsel_val, diff --git a/include/twl4030.h b/include/twl4030.h index 50f8da8..2d0ca18 100644 --- a/include/twl4030.h +++ b/include/twl4030.h @@ -129,14 +129,6 @@ #define TWL4030_PM_MASTER_BB_CFG 0x6D #define TWL4030_PM_MASTER_MISC_TST 0x6E #define TWL4030_PM_MASTER_TRIM1 0x6F -/* P[1-3]_SW_EVENTS */ -#define TWL4030_PM_MASTER_SW_EVENTS_STOPON_PWRON (1 << 6) -#define TWL4030_PM_MASTER_SW_EVENTS_STOPON_SYSEN (1 << 5) -#define TWL4030_PM_MASTER_SW_EVENTS_ENABLE_WARMRESET (1 << 4) -#define TWL4030_PM_MASTER_SW_EVENTS_LVL_WAKEUP (1 << 3) -#define TWL4030_PM_MASTER_SW_EVENTS_DEVACT (1 << 2) -#define TWL4030_PM_MASTER_SW_EVENTS_DEVSLP (1 << 1) -#define TWL4030_PM_MASTER_SW_EVENTS_DEVOFF (1 << 0) /* Power bus message definitions */ @@ -207,6 +199,28 @@ /* Power Reference */ #define RES_Main_Ref 28 +/* P[1-3]_SW_EVENTS */ +#define TWL4030_PM_MASTER_SW_EVENTS_STOPON_PWRON (1 << 6) +#define TWL4030_PM_MASTER_SW_EVENTS_STOPON_SYSEN (1 << 5) +#define TWL4030_PM_MASTER_SW_EVENTS_ENABLE_WARMRESET (1 << 4) +#define TWL4030_PM_MASTER_SW_EVENTS_LVL_WAKEUP (1 << 3) +#define TWL4030_PM_MASTER_SW_EVENTS_DEVACT (1 << 2) +#define TWL4030_PM_MASTER_SW_EVENTS_DEVSLP (1 << 1) +#define TWL4030_PM_MASTER_SW_EVENTS_DEVOFF (1 << 0) + +/* Power transition */ +#define TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_PWON (1 << 0) +#define TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_CHG (1 << 1) +#define TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_USB (1 << 2) +#define TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_RTC (1 << 3) +#define TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_VBAT (1 << 4) +#define TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_VBUS (1 << 5) +#define TWL4030_PM_MASTER_CFG_TRANSITION_STARTON_SWBUG (1 << 7) + +/* PWRANA2 */ +#define TWL4030_PM_MASTER_CFG_PWRANA2_LOJIT0_LOWV (1 << 1) +#define TWL4030_PM_MASTER_CFG_PWRANA2_LOJIT1_LOWV (1 << 2) + #define TOTAL_RESOURCES 28 /* * Power Bus Message Format ... these can be sent individually by Linux, @@ -645,6 +659,8 @@ static inline int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val) /* For hardware resetting */ void twl4030_power_reset_init(void); +/* For power off */ +void twl4030_power_off(void); /* For setting device group and voltage */ void twl4030_pmrecv_vsel_cfg(u8 vsel_reg, u8 vsel_val, u8 dev_grp, u8 dev_grp_sel); |