X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fpower%2Faxp221.c;h=c440047d36fe50669b820d499c39e28908ccd462;hb=eb7387ae14ef88ecba85d569de978da776ea4f09;hp=941193a19da516f68f404f9363a9bdbfd46b03b4;hpb=5c7f10fda362db16a7bf3e571b4ae1e88fac2466;p=oweals%2Fu-boot.git diff --git a/drivers/power/axp221.c b/drivers/power/axp221.c index 941193a19d..c440047d36 100644 --- a/drivers/power/axp221.c +++ b/drivers/power/axp221.c @@ -1,13 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0+ /* - * (C) Copyright 2013 Oliver Schinagl + * AXP221 and AXP223 driver + * + * IMPORTANT when making changes to this file check that the registers + * used are the same for the axp221 and axp223. * - * SPDX-License-Identifier: GPL-2.0+ + * (C) Copyright 2014 Hans de Goede + * (C) Copyright 2013 Oliver Schinagl */ #include +#include #include -#include -#include +#include +#include static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div) { @@ -19,168 +25,252 @@ static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div) return (mvolt - min) / div; } -static int axp221_setbits(u8 reg, u8 bits) +int axp_set_dcdc1(unsigned int mvolt) { int ret; - u8 val; + u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100); + + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC1_EN); + + ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg); + if (ret) + return ret; - ret = p2wi_read(reg, &val); + ret = pmic_bus_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DCDC1SW_EN); if (ret) return ret; - val |= bits; - return p2wi_write(reg, val); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC1_EN); } -int axp221_set_dcdc1(unsigned int mvolt) +int axp_set_dcdc2(unsigned int mvolt) { int ret; - u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100); + u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20); - ret = p2wi_write(AXP221_DCDC1_CTRL, cfg); + if (mvolt == 0) + return pmic_bus_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_CTRL2, - AXP221_OUTPUT_CTRL2_DCDC1_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC2_EN); } -int axp221_set_dcdc2(unsigned int mvolt) +int axp_set_dcdc3(unsigned int mvolt) { - u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20); + int ret; + u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20); - return p2wi_write(AXP221_DCDC2_CTRL, cfg); -} + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC3_EN); -int axp221_set_dcdc3(unsigned int mvolt) -{ - u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20); + ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg); + if (ret) + return ret; - return p2wi_write(AXP221_DCDC3_CTRL, cfg); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC3_EN); } -int axp221_set_dcdc4(unsigned int mvolt) +int axp_set_dcdc4(unsigned int mvolt) { + int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20); - return p2wi_write(AXP221_DCDC4_CTRL, cfg); -} + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC4_EN); -int axp221_set_dcdc5(unsigned int mvolt) -{ - u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50); + ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg); + if (ret) + return ret; - return p2wi_write(AXP221_DCDC5_CTRL, cfg); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC4_EN); } -int axp221_set_dldo1(unsigned int mvolt) +int axp_set_dcdc5(unsigned int mvolt) { int ret; - u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50); + + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC5_EN); - ret = p2wi_write(AXP221_DLDO1_CTRL, cfg); + ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO1_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_DCDC5_EN); } -int axp221_set_dldo2(unsigned int mvolt) +int axp_set_aldo1(unsigned int mvolt) { int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); - ret = p2wi_write(AXP221_DLDO2_CTRL, cfg); + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO1_EN); + + ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO2_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO1_EN); } -int axp221_set_dldo3(unsigned int mvolt) +int axp_set_aldo2(unsigned int mvolt) { int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); - ret = p2wi_write(AXP221_DLDO3_CTRL, cfg); + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO2_EN); + + ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO3_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL1, + AXP221_OUTPUT_CTRL1_ALDO2_EN); } -int axp221_set_dldo4(unsigned int mvolt) +int axp_set_aldo3(unsigned int mvolt) { int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); - ret = p2wi_write(AXP221_DLDO4_CTRL, cfg); + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL3, + AXP221_OUTPUT_CTRL3_ALDO3_EN); + + ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL2, - AXP221_OUTPUT_CTRL2_DLDO4_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL3, + AXP221_OUTPUT_CTRL3_ALDO3_EN); } -int axp221_set_aldo1(unsigned int mvolt) +int axp_set_dldo(int dldo_num, unsigned int mvolt) { - int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); + int ret; + + if (dldo_num < 1 || dldo_num > 4) + return -EINVAL; - ret = p2wi_write(AXP221_ALDO1_CTRL, cfg); + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1)); + + ret = pmic_bus_write(AXP221_DLDO1_CTRL + (dldo_num - 1), cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_ALDO1_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1)); } -int axp221_set_aldo2(unsigned int mvolt) +int axp_set_eldo(int eldo_num, unsigned int mvolt) { int ret; u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); - ret = p2wi_write(AXP221_ALDO2_CTRL, cfg); + if (eldo_num < 1 || eldo_num > 3) + return -EINVAL; + + if (mvolt == 0) + return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1)); + + ret = pmic_bus_write(AXP221_ELDO1_CTRL + (eldo_num - 1), cfg); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL1, - AXP221_OUTPUT_CTRL1_ALDO2_EN); + return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, + AXP221_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1)); } -int axp221_set_aldo3(unsigned int mvolt) +int axp_init(void) { + u8 axp_chip_id; int ret; - u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100); - ret = p2wi_write(AXP221_ALDO3_CTRL, cfg); + ret = pmic_bus_init(); + if (ret) + return ret; + + ret = pmic_bus_read(AXP221_CHIP_ID, &axp_chip_id); + if (ret) + return ret; + + if (!(axp_chip_id == 0x6 || axp_chip_id == 0x7 || axp_chip_id == 0x17)) + return -ENODEV; + + /* + * Turn off LDOIO regulators / tri-state GPIO pins, when rebooting + * from android these are sometimes on. + */ + ret = pmic_bus_write(AXP_GPIO0_CTRL, AXP_GPIO_CTRL_INPUT); if (ret) return ret; - return axp221_setbits(AXP221_OUTPUT_CTRL3, - AXP221_OUTPUT_CTRL3_ALDO3_EN); + ret = pmic_bus_write(AXP_GPIO1_CTRL, AXP_GPIO_CTRL_INPUT); + if (ret) + return ret; + + return 0; } -int axp221_init(void) +int axp_get_sid(unsigned int *sid) { - u8 axp_chip_id; - int ret; + u8 *dest = (u8 *)sid; + int i, ret; - p2wi_init(); - ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR, - AXP221_INIT_DATA); + ret = pmic_bus_init(); if (ret) return ret; - ret = p2wi_read(AXP221_CHIP_ID, &axp_chip_id); + ret = pmic_bus_write(AXP221_PAGE, 1); if (ret) return ret; - if (!(axp_chip_id == 0x6 || axp_chip_id == 0x7 || axp_chip_id == 0x17)) - return -ENODEV; + for (i = 0; i < 16; i++) { + ret = pmic_bus_read(AXP221_SID + i, &dest[i]); + if (ret) + return ret; + } + + pmic_bus_write(AXP221_PAGE, 0); + + for (i = 0; i < 4; i++) + sid[i] = be32_to_cpu(sid[i]); + + return 0; +} + +int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + pmic_bus_write(AXP221_SHUTDOWN, AXP221_SHUTDOWN_POWEROFF); + + /* infinite loop during shutdown */ + while (1) {} + /* not reached */ return 0; }