diff options
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/Kconfig | 16 | ||||
| -rw-r--r-- | drivers/power/axp221.c | 102 |
2 files changed, 104 insertions, 14 deletions
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index e132759..ef0c093 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -19,9 +19,9 @@ config AXP221_DCDC1_VOLT config AXP221_DLDO1_VOLT int "axp221 dldo1 voltage" depends on AXP221_POWER - default -1 + default 0 ---help--- - Set the voltage (mV) to program the axp221 dldo1 at, set to -1 to + Set the voltage (mV) to program the axp221 dldo1 at, set to 0 to disable dldo1. On sun6i (A31) boards with ethernet this is often used to power the ethernet phy. On sun8i (A23) boards this is often used to power the wifi. @@ -29,17 +29,17 @@ config AXP221_DLDO1_VOLT config AXP221_DLDO4_VOLT int "axp221 dldo4 voltage" depends on AXP221_POWER - default -1 + default 0 ---help--- - Set the voltage (mV) to program the axp221 dldo4 at, set to -1 to + Set the voltage (mV) to program the axp221 dldo4 at, set to 0 to disable dldo4. config AXP221_ALDO1_VOLT int "axp221 aldo1 voltage" depends on AXP221_POWER - default -1 + default 0 ---help--- - Set the voltage (mV) to program the axp221 aldo1 at, set to -1 to + Set the voltage (mV) to program the axp221 aldo1 at, set to 0 to disable aldo1. On sun6i (A31) boards which have a wifi module this is often used to power the wifi module. @@ -49,7 +49,7 @@ config AXP221_ALDO2_VOLT default 1800 if MACH_SUN6I default 2500 if MACH_SUN8I ---help--- - Set the voltage (mV) to program the axp221 aldo2 at, set to -1 to + Set the voltage (mV) to program the axp221 aldo2 at, set to 0 to disable aldo2. On sun6i (A31) boards this is typically connected to VCC-PM, which powers the port M gpios, and should be set to 1.8V. On sun8i (A23) this is typically connected to VDD-DLL and must be @@ -60,6 +60,6 @@ config AXP221_ALDO3_VOLT depends on AXP221_POWER default 3000 ---help--- - Set the voltage (mV) to program the axp221 aldo3 at, set to -1 to + Set the voltage (mV) to program the axp221 aldo3 at, set to 0 to disable aldo3. This is typically connected to VCC-PLL and AVCC and must be set to 3V. diff --git a/drivers/power/axp221.c b/drivers/power/axp221.c index 4667579..1fda19a 100644 --- a/drivers/power/axp221.c +++ b/drivers/power/axp221.c @@ -80,45 +80,107 @@ static int axp221_setbits(u8 reg, u8 bits) return pmic_bus_write(reg, val); } +static int axp221_clrbits(u8 reg, u8 bits) +{ + int ret; + u8 val; + + ret = pmic_bus_read(reg, &val); + if (ret) + return ret; + + val &= ~bits; + return pmic_bus_write(reg, val); +} + int axp221_set_dcdc1(unsigned int mvolt) { int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC1_EN); + ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DCDC1_EN); + ret = axp221_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DCDC1SW_EN); + if (ret) + return ret; + + return axp221_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC1_EN); } int axp221_set_dcdc2(unsigned int mvolt) { + int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20); - return pmic_bus_write(AXP221_DCDC2_CTRL, cfg); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC2_EN); + + ret = pmic_bus_write(AXP221_DCDC2_CTRL, cfg); + if (ret) + return ret; + + return axp221_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC2_EN); } int axp221_set_dcdc3(unsigned int mvolt) { + int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20); - return pmic_bus_write(AXP221_DCDC3_CTRL, cfg); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC3_EN); + + ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg); + if (ret) + return ret; + + return axp221_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC3_EN); } int axp221_set_dcdc4(unsigned int mvolt) { + int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20); - return pmic_bus_write(AXP221_DCDC4_CTRL, cfg); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC4_EN); + + ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg); + if (ret) + return ret; + + return axp221_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC4_EN); } int axp221_set_dcdc5(unsigned int mvolt) { + int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50); - return pmic_bus_write(AXP221_DCDC5_CTRL, cfg); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC5_EN); + + ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg); + if (ret) + return ret; + + return axp221_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC5_EN); } int axp221_set_dldo1(unsigned int mvolt) @@ -126,6 +188,10 @@ int axp221_set_dldo1(unsigned int mvolt) int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO1_EN); + ret = pmic_bus_write(AXP221_DLDO1_CTRL, cfg); if (ret) return ret; @@ -139,6 +205,10 @@ int axp221_set_dldo2(unsigned int mvolt) int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO2_EN); + ret = pmic_bus_write(AXP221_DLDO2_CTRL, cfg); if (ret) return ret; @@ -152,6 +222,10 @@ int axp221_set_dldo3(unsigned int mvolt) int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO3_EN); + ret = pmic_bus_write(AXP221_DLDO3_CTRL, cfg); if (ret) return ret; @@ -165,6 +239,10 @@ int axp221_set_dldo4(unsigned int mvolt) int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO4_EN); + ret = pmic_bus_write(AXP221_DLDO4_CTRL, cfg); if (ret) return ret; @@ -178,6 +256,10 @@ int axp221_set_aldo1(unsigned int mvolt) int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO1_EN); + ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg); if (ret) return ret; @@ -191,6 +273,10 @@ int axp221_set_aldo2(unsigned int mvolt) int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO2_EN); + ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg); if (ret) return ret; @@ -204,6 +290,10 @@ int axp221_set_aldo3(unsigned int mvolt) int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + if (mvolt == 0) + return axp221_clrbits(AXP221_OUTPUT_CTRL3, + AXP221_OUTPUT_CTRL3_ALDO3_EN); + ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg); if (ret) return ret; |