X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fpower%2Faxp209.c;h=4b25ef25780e9112c02e3818e1ecffc96b2060cb;hb=f7fda5d1c05e6c86cf60cbd16b7258be56477dfc;hp=9798e5bf7c621ebdba0c27b10f92e43796347609;hpb=b1cdd8baa14f518288ceddb391d6587c1ecb3174;p=u-boot diff --git a/drivers/power/axp209.c b/drivers/power/axp209.c index 9798e5bf7c..4b25ef2578 100644 --- a/drivers/power/axp209.c +++ b/drivers/power/axp209.c @@ -6,36 +6,9 @@ */ #include -#include -#include - -enum axp209_reg { - AXP209_POWER_STATUS = 0x00, - AXP209_CHIP_VERSION = 0x03, - AXP209_DCDC2_VOLTAGE = 0x23, - AXP209_DCDC3_VOLTAGE = 0x27, - AXP209_LDO24_VOLTAGE = 0x28, - AXP209_LDO3_VOLTAGE = 0x29, - AXP209_IRQ_STATUS5 = 0x4c, - AXP209_SHUTDOWN = 0x32, -}; - -#define AXP209_POWER_STATUS_ON_BY_DC (1 << 0) - -#define AXP209_IRQ5_PEK_UP (1 << 6) -#define AXP209_IRQ5_PEK_DOWN (1 << 5) - -#define AXP209_POWEROFF (1 << 7) - -static int axp209_write(enum axp209_reg reg, u8 val) -{ - return i2c_write(0x34, reg, 1, &val, 1); -} - -static int axp209_read(enum axp209_reg reg, u8 *val) -{ - return i2c_read(0x34, reg, 1, val, 1); -} +#include +#include +#include static u8 axp209_mvolt_to_cfg(int mvolt, int min, int max, int div) { @@ -47,22 +20,30 @@ static u8 axp209_mvolt_to_cfg(int mvolt, int min, int max, int div) return (mvolt - min) / div; } -int axp209_set_dcdc2(int mvolt) +int axp_set_dcdc2(unsigned int mvolt) { int rc; u8 cfg, current; + if (mvolt == 0) + return pmic_bus_clrbits(AXP209_OUTPUT_CTRL, + AXP209_OUTPUT_CTRL_DCDC2); + + rc = pmic_bus_setbits(AXP209_OUTPUT_CTRL, AXP209_OUTPUT_CTRL_DCDC2); + if (rc) + return rc; + cfg = axp209_mvolt_to_cfg(mvolt, 700, 2275, 25); /* Do we really need to be this gentle? It has built-in voltage slope */ - while ((rc = axp209_read(AXP209_DCDC2_VOLTAGE, ¤t)) == 0 && + while ((rc = pmic_bus_read(AXP209_DCDC2_VOLTAGE, ¤t)) == 0 && current != cfg) { if (current < cfg) current++; else current--; - rc = axp209_write(AXP209_DCDC2_VOLTAGE, current); + rc = pmic_bus_write(AXP209_DCDC2_VOLTAGE, current); if (rc) break; } @@ -70,68 +51,106 @@ int axp209_set_dcdc2(int mvolt) return rc; } -int axp209_set_dcdc3(int mvolt) +int axp_set_dcdc3(unsigned int mvolt) { u8 cfg = axp209_mvolt_to_cfg(mvolt, 700, 3500, 25); + int rc; - return axp209_write(AXP209_DCDC3_VOLTAGE, cfg); + if (mvolt == 0) + return pmic_bus_clrbits(AXP209_OUTPUT_CTRL, + AXP209_OUTPUT_CTRL_DCDC3); + + rc = pmic_bus_write(AXP209_DCDC3_VOLTAGE, cfg); + if (rc) + return rc; + + return pmic_bus_setbits(AXP209_OUTPUT_CTRL, AXP209_OUTPUT_CTRL_DCDC3); } -int axp209_set_ldo2(int mvolt) +int axp_set_aldo2(unsigned int mvolt) { int rc; u8 cfg, reg; + if (mvolt == 0) + return pmic_bus_clrbits(AXP209_OUTPUT_CTRL, + AXP209_OUTPUT_CTRL_LDO2); + cfg = axp209_mvolt_to_cfg(mvolt, 1800, 3300, 100); - rc = axp209_read(AXP209_LDO24_VOLTAGE, ®); + rc = pmic_bus_read(AXP209_LDO24_VOLTAGE, ®); if (rc) return rc; /* LDO2 configuration is in upper 4 bits */ reg = (reg & 0x0f) | (cfg << 4); - return axp209_write(AXP209_LDO24_VOLTAGE, reg); + rc = pmic_bus_write(AXP209_LDO24_VOLTAGE, reg); + if (rc) + return rc; + + return pmic_bus_setbits(AXP209_OUTPUT_CTRL, AXP209_OUTPUT_CTRL_LDO2); } -int axp209_set_ldo3(int mvolt) +int axp_set_aldo3(unsigned int mvolt) { u8 cfg; + int rc; + + if (mvolt == 0) + return pmic_bus_clrbits(AXP209_OUTPUT_CTRL, + AXP209_OUTPUT_CTRL_LDO3); if (mvolt == -1) cfg = 0x80; /* determined by LDO3IN pin */ else - cfg = axp209_mvolt_to_cfg(mvolt, 700, 2275, 25); + cfg = axp209_mvolt_to_cfg(mvolt, 700, 3500, 25); - return axp209_write(AXP209_LDO3_VOLTAGE, cfg); + rc = pmic_bus_write(AXP209_LDO3_VOLTAGE, cfg); + if (rc) + return rc; + + return pmic_bus_setbits(AXP209_OUTPUT_CTRL, AXP209_OUTPUT_CTRL_LDO3); } -int axp209_set_ldo4(int mvolt) +int axp_set_aldo4(unsigned int mvolt) { int rc; - static const int vindex[] = { + static const unsigned int vindex[] = { 1250, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2500, 2700, 2800, 3000, 3100, 3200, 3300 }; u8 cfg, reg; + if (mvolt == 0) + return pmic_bus_clrbits(AXP209_OUTPUT_CTRL, + AXP209_OUTPUT_CTRL_LDO4); + /* Translate mvolt to register cfg value, requested <= selected */ for (cfg = 15; vindex[cfg] > mvolt && cfg > 0; cfg--); - rc = axp209_read(AXP209_LDO24_VOLTAGE, ®); + rc = pmic_bus_read(AXP209_LDO24_VOLTAGE, ®); if (rc) return rc; /* LDO4 configuration is in lower 4 bits */ reg = (reg & 0xf0) | (cfg << 0); - return axp209_write(AXP209_LDO24_VOLTAGE, reg); + rc = pmic_bus_write(AXP209_LDO24_VOLTAGE, reg); + if (rc) + return rc; + + return pmic_bus_setbits(AXP209_OUTPUT_CTRL, AXP209_OUTPUT_CTRL_LDO4); } -int axp209_init(void) +int axp_init(void) { u8 ver; - int rc; + int i, rc; - rc = axp209_read(AXP209_CHIP_VERSION, &ver); + rc = pmic_bus_init(); + if (rc) + return rc; + + rc = pmic_bus_read(AXP209_CHIP_VERSION, &ver); if (rc) return rc; @@ -139,29 +158,41 @@ int axp209_init(void) ver &= 0x0f; if (ver != 0x1) - return -1; + return -EINVAL; - return 0; -} + /* Mask all interrupts */ + for (i = AXP209_IRQ_ENABLE1; i <= AXP209_IRQ_ENABLE5; i++) { + rc = pmic_bus_write(i, 0); + if (rc) + return rc; + } -int axp209_poweron_by_dc(void) -{ - u8 v; + /* + * Turn off LDOIO regulators / tri-state GPIO pins, when rebooting + * from android these are sometimes on. + */ + rc = pmic_bus_write(AXP_GPIO0_CTRL, AXP_GPIO_CTRL_INPUT); + if (rc) + return rc; + + rc = pmic_bus_write(AXP_GPIO1_CTRL, AXP_GPIO_CTRL_INPUT); + if (rc) + return rc; - if (axp209_read(AXP209_POWER_STATUS, &v)) - return 0; + rc = pmic_bus_write(AXP_GPIO2_CTRL, AXP_GPIO_CTRL_INPUT); + if (rc) + return rc; - return (v & AXP209_POWER_STATUS_ON_BY_DC); + return 0; } -int axp209_power_button(void) +int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { - u8 v; - - if (axp209_read(AXP209_IRQ_STATUS5, &v)) - return 0; + pmic_bus_write(AXP209_SHUTDOWN, AXP209_POWEROFF); - axp209_write(AXP209_IRQ_STATUS5, AXP209_IRQ5_PEK_DOWN); + /* infinite loop during shutdown */ + while (1) {} - return v & AXP209_IRQ5_PEK_DOWN; + /* not reached */ + return 0; }