/* * Copyright (C) 2015 Google, Inc * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include #include #include #include #include DECLARE_GLOBAL_DATA_PTR; static const struct sec_voltage_desc buck_v1 = { .max = 2225000, .min = 650000, .step = 6250, }; static const struct sec_voltage_desc buck_v2 = { .max = 1600000, .min = 600000, .step = 6250, }; static const struct sec_voltage_desc buck_v3 = { .max = 3000000, .min = 750000, .step = 12500, }; static const struct sec_voltage_desc ldo_v1 = { .max = 3950000, .min = 800000, .step = 50000, }; static const struct sec_voltage_desc ldo_v2 = { .max = 2375000, .min = 800000, .step = 25000, }; static const struct s5m8767_para buck_param[] = { /* * | voltage ----| | enable -| voltage * regnum addr bpos mask addr on desc */ {S5M8767_BUCK1, 0x33, 0x0, 0xff, 0x32, 0x3, &buck_v1}, {S5M8767_BUCK2, 0x35, 0x0, 0xff, 0x34, 0x1, &buck_v2}, {S5M8767_BUCK3, 0x3e, 0x0, 0xff, 0x3d, 0x1, &buck_v2}, {S5M8767_BUCK4, 0x47, 0x0, 0xff, 0x46, 0x1, &buck_v2}, {S5M8767_BUCK5, 0x50, 0x0, 0xff, 0x4f, 0x3, &buck_v1}, {S5M8767_BUCK6, 0x55, 0x0, 0xff, 0x54, 0x3, &buck_v1}, {S5M8767_BUCK7, 0x57, 0x0, 0xff, 0x56, 0x3, &buck_v3}, {S5M8767_BUCK8, 0x59, 0x0, 0xff, 0x58, 0x3, &buck_v3}, {S5M8767_BUCK9, 0x5b, 0x0, 0xff, 0x5a, 0x3, &buck_v3}, }; static const struct s5m8767_para ldo_param[] = { {S5M8767_LDO1, 0x5c, 0x0, 0x3f, 0x5c, 0x3, &ldo_v2}, {S5M8767_LDO2, 0x5d, 0x0, 0x3f, 0x5d, 0x1, &ldo_v2}, {S5M8767_LDO3, 0x61, 0x0, 0x3f, 0x61, 0x3, &ldo_v1}, {S5M8767_LDO4, 0x62, 0x0, 0x3f, 0x62, 0x3, &ldo_v1}, {S5M8767_LDO5, 0x63, 0x0, 0x3f, 0x63, 0x3, &ldo_v1}, {S5M8767_LDO6, 0x64, 0x0, 0x3f, 0x64, 0x1, &ldo_v2}, {S5M8767_LDO7, 0x65, 0x0, 0x3f, 0x65, 0x1, &ldo_v2}, {S5M8767_LDO8, 0x66, 0x0, 0x3f, 0x66, 0x1, &ldo_v2}, {S5M8767_LDO9, 0x67, 0x0, 0x3f, 0x67, 0x3, &ldo_v1}, {S5M8767_LDO10, 0x68, 0x0, 0x3f, 0x68, 0x1, &ldo_v1}, {S5M8767_LDO11, 0x69, 0x0, 0x3f, 0x69, 0x1, &ldo_v1}, {S5M8767_LDO12, 0x6a, 0x0, 0x3f, 0x6a, 0x1, &ldo_v1}, {S5M8767_LDO13, 0x6b, 0x0, 0x3f, 0x6b, 0x3, &ldo_v1}, {S5M8767_LDO14, 0x6c, 0x0, 0x3f, 0x6c, 0x1, &ldo_v1}, {S5M8767_LDO15, 0x6d, 0x0, 0x3f, 0x6d, 0x1, &ldo_v2}, {S5M8767_LDO16, 0x6e, 0x0, 0x3f, 0x6e, 0x1, &ldo_v1}, {S5M8767_LDO17, 0x6f, 0x0, 0x3f, 0x6f, 0x3, &ldo_v1}, {S5M8767_LDO18, 0x70, 0x0, 0x3f, 0x70, 0x3, &ldo_v1}, {S5M8767_LDO19, 0x71, 0x0, 0x3f, 0x71, 0x3, &ldo_v1}, {S5M8767_LDO20, 0x72, 0x0, 0x3f, 0x72, 0x3, &ldo_v1}, {S5M8767_LDO21, 0x73, 0x0, 0x3f, 0x73, 0x3, &ldo_v1}, {S5M8767_LDO22, 0x74, 0x0, 0x3f, 0x74, 0x3, &ldo_v1}, {S5M8767_LDO23, 0x75, 0x0, 0x3f, 0x75, 0x3, &ldo_v1}, {S5M8767_LDO24, 0x76, 0x0, 0x3f, 0x76, 0x3, &ldo_v1}, {S5M8767_LDO25, 0x77, 0x0, 0x3f, 0x77, 0x3, &ldo_v1}, {S5M8767_LDO26, 0x78, 0x0, 0x3f, 0x78, 0x3, &ldo_v1}, {S5M8767_LDO27, 0x79, 0x0, 0x3f, 0x79, 0x3, &ldo_v1}, {S5M8767_LDO28, 0x7a, 0x0, 0x3f, 0x7a, 0x3, &ldo_v1}, }; enum { ENABLE_SHIFT = 6, ENABLE_MASK = 3, }; static int reg_get_value(struct udevice *dev, const struct s5m8767_para *param) { const struct sec_voltage_desc *desc; int ret, uv, val; ret = pmic_reg_read(dev->parent, param->vol_addr); if (ret < 0) return ret; desc = param->vol; val = (ret >> param->vol_bitpos) & param->vol_bitmask; uv = desc->min + val * desc->step; return uv; } static int reg_set_value(struct udevice *dev, const struct s5m8767_para *param, int uv) { const struct sec_voltage_desc *desc; int ret, val; desc = param->vol; if (uv < desc->min || uv > desc->max) return -EINVAL; val = (uv - desc->min) / desc->step; val = (val & param->vol_bitmask) << param->vol_bitpos; ret = pmic_clrsetbits(dev->parent, param->vol_addr, param->vol_bitmask << param->vol_bitpos, val); return ret; } static int s5m8767_ldo_probe(struct udevice *dev) { struct dm_regulator_uclass_platdata *uc_pdata; uc_pdata = dev_get_uclass_platdata(dev); uc_pdata->type = REGULATOR_TYPE_LDO; uc_pdata->mode_count = 0; return 0; } static int ldo_get_value(struct udevice *dev) { int ldo = dev->driver_data; return reg_get_value(dev, &ldo_param[ldo]); } static int ldo_set_value(struct udevice *dev, int uv) { int ldo = dev->driver_data; return reg_set_value(dev, &ldo_param[ldo], uv); } static int reg_get_enable(struct udevice *dev, const struct s5m8767_para *param) { bool enable; int ret; ret = pmic_reg_read(dev->parent, param->reg_enaddr); if (ret < 0) return ret; enable = (ret >> ENABLE_SHIFT) & ENABLE_MASK; return enable; } static int reg_set_enable(struct udevice *dev, const struct s5m8767_para *param, bool enable) { int ret; ret = pmic_reg_read(dev->parent, param->reg_enaddr); if (ret < 0) return ret; ret = pmic_clrsetbits(dev->parent, param->reg_enaddr, ENABLE_MASK << ENABLE_SHIFT, enable ? param->reg_enbiton << ENABLE_SHIFT : 0); return ret; } static bool ldo_get_enable(struct udevice *dev) { int ldo = dev->driver_data; return reg_get_enable(dev, &ldo_param[ldo]); } static int ldo_set_enable(struct udevice *dev, bool enable) { int ldo = dev->driver_data; return reg_set_enable(dev, &ldo_param[ldo], enable); } static int s5m8767_buck_probe(struct udevice *dev) { struct dm_regulator_uclass_platdata *uc_pdata; uc_pdata = dev_get_uclass_platdata(dev); uc_pdata->type = REGULATOR_TYPE_BUCK; uc_pdata->mode_count = 0; return 0; } static int buck_get_value(struct udevice *dev) { int buck = dev->driver_data; return reg_get_value(dev, &buck_param[buck]); } static int buck_set_value(struct udevice *dev, int uv) { int buck = dev->driver_data; return reg_set_value(dev, &buck_param[buck], uv); } static bool buck_get_enable(struct udevice *dev) { int buck = dev->driver_data; return reg_get_enable(dev, &buck_param[buck]); } static int buck_set_enable(struct udevice *dev, bool enable) { int buck = dev->driver_data; return reg_set_enable(dev, &buck_param[buck], enable); } static const struct dm_regulator_ops s5m8767_ldo_ops = { .get_value = ldo_get_value, .set_value = ldo_set_value, .get_enable = ldo_get_enable, .set_enable = ldo_set_enable, }; U_BOOT_DRIVER(s5m8767_ldo) = { .name = S5M8767_LDO_DRIVER, .id = UCLASS_REGULATOR, .ops = &s5m8767_ldo_ops, .probe = s5m8767_ldo_probe, }; static const struct dm_regulator_ops s5m8767_buck_ops = { .get_value = buck_get_value, .set_value = buck_set_value, .get_enable = buck_get_enable, .set_enable = buck_set_enable, }; U_BOOT_DRIVER(s5m8767_buck) = { .name = S5M8767_BUCK_DRIVER, .id = UCLASS_REGULATOR, .ops = &s5m8767_buck_ops, .probe = s5m8767_buck_probe, };