diff options
Diffstat (limited to 'common/pmu_tps65090.c')
| -rw-r--r-- | common/pmu_tps65090.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/common/pmu_tps65090.c b/common/pmu_tps65090.c index 3198e1eae4..ba75d82235 100644 --- a/common/pmu_tps65090.c +++ b/common/pmu_tps65090.c @@ -30,10 +30,18 @@ #define CG_CTRL5 0x09 #define CG_STATUS1 0x0a #define CG_STATUS2 0x0b +#define TPSCHROME_VER 0x19 /* Charger control */ #define CG_CTRL0_EN 1 +/* Charger termination voltage/current */ +#define CG_VSET_SHIFT 3 +#define CG_VSET_MASK (3 << CG_VSET_SHIFT) +#define CG_ISET_SHIFT 0 +#define CG_ISET_MASK (7 << CG_ISET_SHIFT) +#define CG_NOITERM (1 << 5) + /* IRQ events */ #define EVENT_VACG (1 << 1) #define EVENT_VBATG (1 << 3) @@ -84,6 +92,16 @@ int pmu_write(int reg, int value) return i2c_write8(I2C_PORT_CHARGER, TPS65090_I2C_ADDR, reg, value); } +/** + * Read tpschrome version + * + * @param version output value of tpschrome version + */ +int pmu_version(int *version) +{ + return pmu_read(TPSCHROME_VER, version); +} + int pmu_is_charger_alarm(void) { int status; @@ -129,6 +147,74 @@ int pmu_enable_charger(int enable) (reg & ~CG_CTRL0)); } +/** + * Set termination current for temperature ranges + * + * @param range T01 T12 T23 T34 T40 + * @param current enum termination current, I0250 == 25.0%: + * I0000 I0250 I0375 I0500 I0625 I0750 I0875 I1000 + */ +int pmu_set_term_current(enum TPS_TEMPERATURE_RANGE range, + enum TPS_TERMINATION_CURRENT current) +{ + int rv; + int reg_val; + + rv = pmu_read(CG_CTRL1 + range, ®_val); + if (rv) + return rv; + + reg_val &= ~CG_ISET_MASK; + reg_val |= current << CG_ISET_SHIFT; + + return pmu_write(CG_CTRL1 + range, reg_val); +} + +/** + * Set termination voltage for temperature ranges + * + * @param range T01 T12 T23 T34 T40 + * @param voltage enum termination voltage, V2050 == 2.05V: + * V2000 V2050 V2075 V2100 + */ +int pmu_set_term_voltage(enum TPS_TEMPERATURE_RANGE range, + enum TPS_TERMINATION_VOLTAGE voltage) +{ + int rv; + int reg_val; + + rv = pmu_read(CG_CTRL1 + range, ®_val); + if (rv) + return rv; + + reg_val &= ~CG_VSET_MASK; + reg_val |= voltage << CG_VSET_SHIFT; + + return pmu_write(CG_CTRL1 + range, reg_val); +} + +/** + * Enable low current charging + * + * @param enable enable/disable low current charging + */ +int pmu_low_current_charging(int enable) +{ + int rv; + int reg_val; + + rv = pmu_read(CG_CTRL5, ®_val); + if (rv) + return rv; + + if (enable) + reg_val |= CG_NOITERM; + else + reg_val &= ~CG_NOITERM; + + return pmu_write(CG_CTRL5, reg_val); +} + void pmu_init(void) { #ifdef CONFIG_PMU_BOARD_INIT |