| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| ChiYuan Huang | 1441 | 100.00% | 2 | 100.00% |
| Total | 1441 | 2 |
// SPDX-License-Identifier: GPL-2.0+ #include <linux/bitops.h> #include <linux/i2c.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> enum { RTQ2134_IDX_BUCK1 = 0, RTQ2134_IDX_BUCK2, RTQ2134_IDX_BUCK3, RTQ2134_IDX_MAX }; #define RTQ2134_AUTO_MODE 0 #define RTQ2134_FCCM_MODE 1 #define RTQ2134_BUCK_DVS0_CTRL 0 #define RTQ2134_BUCK_VSEL_CTRL 2 #define RTQ2134_REG_IO_CHIPNAME 0x01 #define RTQ2134_REG_FLT_RECORDTEMP 0x13 #define RTQ2134_REG_FLT_RECORDBUCK(_id) (0x14 + (_id)) #define RTQ2134_REG_FLT_BUCKCTRL(_id) (0x37 + (_id)) #define RTQ2134_REG_BUCK1_CFG0 0x42 #define RTQ2134_REG_BUCK1_DVS0CFG1 0x48 #define RTQ2134_REG_BUCK1_DVS0CFG0 0x49 #define RTQ2134_REG_BUCK1_DVS1CFG1 0x4A #define RTQ2134_REG_BUCK1_DVS1CFG0 0x4B #define RTQ2134_REG_BUCK1_DVSCFG 0x52 #define RTQ2134_REG_BUCK1_RSPCFG 0x54 #define RTQ2134_REG_BUCK2_CFG0 0x5F #define RTQ2134_REG_BUCK2_DVS0CFG1 0x62 #define RTQ2134_REG_BUCK2_DVS0CFG0 0x63 #define RTQ2134_REG_BUCK2_DVS1CFG1 0x64 #define RTQ2134_REG_BUCK2_DVS1CFG0 0x65 #define RTQ2134_REG_BUCK2_DVSCFG 0x6C #define RTQ2134_REG_BUCK2_RSPCFG 0x6E #define RTQ2134_REG_BUCK3_CFG0 0x79 #define RTQ2134_REG_BUCK3_DVS0CFG1 0x7C #define RTQ2134_REG_BUCK3_DVS0CFG0 0x7D #define RTQ2134_REG_BUCK3_DVS1CFG1 0x7E #define RTQ2134_REG_BUCK3_DVS1CFG0 0x7F #define RTQ2134_REG_BUCK3_DVSCFG 0x86 #define RTQ2134_REG_BUCK3_RSPCFG 0x88 #define RTQ2134_REG_BUCK3_SLEWCTRL 0x89 #define RTQ2134_VOUT_MAXNUM 256 #define RTQ2134_VOUT_MASK 0xFF #define RTQ2134_VOUTEN_MASK BIT(0) #define RTQ2134_ACTDISCHG_MASK BIT(0) #define RTQ2134_RSPUP_MASK GENMASK(6, 4) #define RTQ2134_FCCM_MASK BIT(5) #define RTQ2134_UVHICCUP_MASK BIT(3) #define RTQ2134_BUCKDVS_CTRL_MASK GENMASK(1, 0) #define RTQ2134_CHIPOT_MASK BIT(2) #define RTQ2134_BUCKOV_MASK BIT(5) #define RTQ2134_BUCKUV_MASK BIT(4) struct rtq2134_regulator_desc { struct regulator_desc desc; /* Extension for proprietary register and mask */ unsigned int mode_reg; unsigned int mode_mask; unsigned int suspend_enable_reg; unsigned int suspend_enable_mask; unsigned int suspend_vsel_reg; unsigned int suspend_vsel_mask; unsigned int suspend_mode_reg; unsigned int suspend_mode_mask; unsigned int dvs_ctrl_reg; }; static int rtq2134_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) { struct rtq2134_regulator_desc *desc = (struct rtq2134_regulator_desc *)rdev->desc; unsigned int val; if (mode == REGULATOR_MODE_NORMAL) val = RTQ2134_AUTO_MODE; else if (mode == REGULATOR_MODE_FAST) val = RTQ2134_FCCM_MODE; else return -EINVAL; val <<= ffs(desc->mode_mask) - 1; return regmap_update_bits(rdev->regmap, desc->mode_reg, desc->mode_mask, val); } static unsigned int rtq2134_buck_get_mode(struct regulator_dev *rdev) { struct rtq2134_regulator_desc *desc = (struct rtq2134_regulator_desc *)rdev->desc; unsigned int mode; int ret; ret = regmap_read(rdev->regmap, desc->mode_reg, &mode); if (ret) return ret; if (mode & desc->mode_mask) return REGULATOR_MODE_FAST; return REGULATOR_MODE_NORMAL; } static int rtq2134_buck_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct rtq2134_regulator_desc *desc = (struct rtq2134_regulator_desc *)rdev->desc; int sel; sel = regulator_map_voltage_linear_range(rdev, uV, uV); if (sel < 0) return sel; sel <<= ffs(desc->suspend_vsel_mask) - 1; return regmap_update_bits(rdev->regmap, desc->suspend_vsel_reg, desc->suspend_vsel_mask, sel); } static int rtq2134_buck_set_suspend_enable(struct regulator_dev *rdev) { struct rtq2134_regulator_desc *desc = (struct rtq2134_regulator_desc *)rdev->desc; unsigned int val = desc->suspend_enable_mask; return regmap_update_bits(rdev->regmap, desc->suspend_enable_reg, desc->suspend_enable_mask, val); } static int rtq2134_buck_set_suspend_disable(struct regulator_dev *rdev) { struct rtq2134_regulator_desc *desc = (struct rtq2134_regulator_desc *)rdev->desc; return regmap_update_bits(rdev->regmap, desc->suspend_enable_reg, desc->suspend_enable_mask, 0); } static int rtq2134_buck_set_suspend_mode(struct regulator_dev *rdev, unsigned int mode) { struct rtq2134_regulator_desc *desc = (struct rtq2134_regulator_desc *)rdev->desc; unsigned int val; if (mode == REGULATOR_MODE_NORMAL) val = RTQ2134_AUTO_MODE; else if (mode == REGULATOR_MODE_FAST) val = RTQ2134_FCCM_MODE; else return -EINVAL; val <<= ffs(desc->suspend_mode_mask) - 1; return regmap_update_bits(rdev->regmap, desc->suspend_mode_reg, desc->suspend_mode_mask, val); } static int rtq2134_buck_get_error_flags(struct regulator_dev *rdev, unsigned int *flags) { int rid = rdev_get_id(rdev); unsigned int chip_error, buck_error, events = 0; int ret; ret = regmap_read(rdev->regmap, RTQ2134_REG_FLT_RECORDTEMP, &chip_error); if (ret) { dev_err(&rdev->dev, "Failed to get chip error flag\n"); return ret; } ret = regmap_read(rdev->regmap, RTQ2134_REG_FLT_RECORDBUCK(rid), &buck_error); if (ret) { dev_err(&rdev->dev, "Failed to get buck error flag\n"); return ret; } if (chip_error & RTQ2134_CHIPOT_MASK) events |= REGULATOR_ERROR_OVER_TEMP; if (buck_error & RTQ2134_BUCKUV_MASK) events |= REGULATOR_ERROR_UNDER_VOLTAGE; if (buck_error & RTQ2134_BUCKOV_MASK) events |= REGULATOR_ERROR_REGULATION_OUT; *flags = events; return 0; } static const struct regulator_ops rtq2134_buck_ops = { .list_voltage = regulator_list_voltage_linear_range, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_active_discharge = regulator_set_active_discharge_regmap, .set_ramp_delay = regulator_set_ramp_delay_regmap, .set_mode = rtq2134_buck_set_mode, .get_mode = rtq2134_buck_get_mode, .set_suspend_voltage = rtq2134_buck_set_suspend_voltage, .set_suspend_enable = rtq2134_buck_set_suspend_enable, .set_suspend_disable = rtq2134_buck_set_suspend_disable, .set_suspend_mode = rtq2134_buck_set_suspend_mode, .get_error_flags = rtq2134_buck_get_error_flags, }; static const struct linear_range rtq2134_buck_vout_ranges[] = { REGULATOR_LINEAR_RANGE(300000, 0, 200, 5000), REGULATOR_LINEAR_RANGE(1310000, 201, 255, 10000) }; static unsigned int rtq2134_buck_of_map_mode(unsigned int mode) { switch (mode) { case RTQ2134_AUTO_MODE: return REGULATOR_MODE_NORMAL; case RTQ2134_FCCM_MODE: return REGULATOR_MODE_FAST; } return REGULATOR_MODE_INVALID; } static int rtq2134_buck_of_parse_cb(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { struct rtq2134_regulator_desc *rdesc = (struct rtq2134_regulator_desc *)desc; int rid = desc->id; bool uv_shutdown, vsel_dvs; unsigned int val; int ret; vsel_dvs = of_property_read_bool(np, "richtek,use-vsel-dvs"); if (vsel_dvs) val = RTQ2134_BUCK_VSEL_CTRL; else val = RTQ2134_BUCK_DVS0_CTRL; ret = regmap_update_bits(cfg->regmap, rdesc->dvs_ctrl_reg, RTQ2134_BUCKDVS_CTRL_MASK, val); if (ret) return ret; uv_shutdown = of_property_read_bool(np, "richtek,uv-shutdown"); if (uv_shutdown) val = 0; else val = RTQ2134_UVHICCUP_MASK; return regmap_update_bits(cfg->regmap, RTQ2134_REG_FLT_BUCKCTRL(rid), RTQ2134_UVHICCUP_MASK, val); } static const unsigned int rtq2134_buck_ramp_delay_table[] = { 0, 16000, 0, 8000, 4000, 2000, 1000, 500 }; #define RTQ2134_BUCK_DESC(_id) { \ .desc = { \ .name = "rtq2134_buck" #_id, \ .of_match = of_match_ptr("buck" #_id), \ .regulators_node = of_match_ptr("regulators"), \ .id = RTQ2134_IDX_BUCK##_id, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .ops = &rtq2134_buck_ops, \ .n_voltages = RTQ2134_VOUT_MAXNUM, \ .linear_ranges = rtq2134_buck_vout_ranges, \ .n_linear_ranges = ARRAY_SIZE(rtq2134_buck_vout_ranges), \ .vsel_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG1, \ .vsel_mask = RTQ2134_VOUT_MASK, \ .enable_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG0, \ .enable_mask = RTQ2134_VOUTEN_MASK, \ .active_discharge_reg = RTQ2134_REG_BUCK##_id##_CFG0, \ .active_discharge_mask = RTQ2134_ACTDISCHG_MASK, \ .ramp_reg = RTQ2134_REG_BUCK##_id##_RSPCFG, \ .ramp_mask = RTQ2134_RSPUP_MASK, \ .ramp_delay_table = rtq2134_buck_ramp_delay_table, \ .n_ramp_values = ARRAY_SIZE(rtq2134_buck_ramp_delay_table), \ .of_map_mode = rtq2134_buck_of_map_mode, \ .of_parse_cb = rtq2134_buck_of_parse_cb, \ }, \ .mode_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG0, \ .mode_mask = RTQ2134_FCCM_MASK, \ .suspend_mode_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG0, \ .suspend_mode_mask = RTQ2134_FCCM_MASK, \ .suspend_enable_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG0, \ .suspend_enable_mask = RTQ2134_VOUTEN_MASK, \ .suspend_vsel_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG1, \ .suspend_vsel_mask = RTQ2134_VOUT_MASK, \ .dvs_ctrl_reg = RTQ2134_REG_BUCK##_id##_DVSCFG, \ } static const struct rtq2134_regulator_desc rtq2134_regulator_descs[] = { RTQ2134_BUCK_DESC(1), RTQ2134_BUCK_DESC(2), RTQ2134_BUCK_DESC(3) }; static bool rtq2134_is_accissible_reg(struct device *dev, unsigned int reg) { if (reg >= RTQ2134_REG_IO_CHIPNAME && reg <= RTQ2134_REG_BUCK3_SLEWCTRL) return true; return false; } static const struct regmap_config rtq2134_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = RTQ2134_REG_BUCK3_SLEWCTRL, .readable_reg = rtq2134_is_accissible_reg, .writeable_reg = rtq2134_is_accissible_reg, }; static int rtq2134_probe(struct i2c_client *i2c) { struct regmap *regmap; struct regulator_dev *rdev; struct regulator_config regulator_cfg = {}; int i; regmap = devm_regmap_init_i2c(i2c, &rtq2134_regmap_config); if (IS_ERR(regmap)) { dev_err(&i2c->dev, "Failed to allocate regmap\n"); return PTR_ERR(regmap); } regulator_cfg.dev = &i2c->dev; regulator_cfg.regmap = regmap; for (i = 0; i < ARRAY_SIZE(rtq2134_regulator_descs); i++) { rdev = devm_regulator_register(&i2c->dev, &rtq2134_regulator_descs[i].desc, ®ulator_cfg); if (IS_ERR(rdev)) { dev_err(&i2c->dev, "Failed to init %d regulator\n", i); return PTR_ERR(rdev); } } return 0; } static const struct of_device_id __maybe_unused rtq2134_device_tables[] = { { .compatible = "richtek,rtq2134", }, {} }; MODULE_DEVICE_TABLE(of, rtq2134_device_tables); static struct i2c_driver rtq2134_driver = { .driver = { .name = "rtq2134", .of_match_table = rtq2134_device_tables, }, .probe_new = rtq2134_probe, }; module_i2c_driver(rtq2134_driver); MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>"); MODULE_DESCRIPTION("Richtek RTQ2134 Regulator Driver"); MODULE_LICENSE("GPL v2");
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