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drivers/regulator/rk808-regulator.c
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/* |
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* Regulator driver for Rockchip RK808/RK818 |
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* * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd * * Author: Chris Zhong <zyw@rock-chips.com> * Author: Zhang Qing <zhangqing@rock-chips.com> * |
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* Copyright (C) 2016 PHYTEC Messtechnik GmbH * * Author: Wadim Egorov <w.egorov@phytec.de> * |
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* This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. |
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*/ |
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#include <linux/delay.h> #include <linux/gpio.h> |
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#include <linux/i2c.h> |
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#include <linux/module.h> |
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#include <linux/of_device.h> |
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#include <linux/of_gpio.h> #include <linux/mfd/rk808.h> |
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#include <linux/regulator/driver.h> #include <linux/regulator/of_regulator.h> |
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#include <linux/gpio/consumer.h> |
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/* Field Definitions */ |
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#define RK808_BUCK_VSEL_MASK 0x3f #define RK808_BUCK4_VSEL_MASK 0xf #define RK808_LDO_VSEL_MASK 0x1f |
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#define RK818_BUCK_VSEL_MASK 0x3f #define RK818_BUCK4_VSEL_MASK 0x1f #define RK818_LDO_VSEL_MASK 0x1f #define RK818_LDO3_ON_VSEL_MASK 0xf #define RK818_BOOST_ON_VSEL_MASK 0xe0 |
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/* Ramp rate definitions for buck1 / buck2 only */ #define RK808_RAMP_RATE_OFFSET 3 #define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET) #define RK808_RAMP_RATE_2MV_PER_US (0 << RK808_RAMP_RATE_OFFSET) #define RK808_RAMP_RATE_4MV_PER_US (1 << RK808_RAMP_RATE_OFFSET) #define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET) #define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET) |
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#define RK808_DVS2_POL BIT(2) #define RK808_DVS1_POL BIT(1) |
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/* Offset from XXX_ON_VSEL to XXX_SLP_VSEL */ #define RK808_SLP_REG_OFFSET 1 |
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/* Offset from XXX_ON_VSEL to XXX_DVS_VSEL */ #define RK808_DVS_REG_OFFSET 2 |
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/* Offset from XXX_EN_REG to SLEEP_SET_OFF_XXX */ #define RK808_SLP_SET_OFF_REG_OFFSET 2 |
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/* max steps for increase voltage of Buck1/2, equal 100mv*/ #define MAX_STEPS_ONE_TIME 8 |
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#define RK805_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \ _vmask, _ereg, _emask, _etime) \ [_id] = { \ .name = (_match), \ .supply_name = (_supply), \ .of_match = of_match_ptr(_match), \ .regulators_node = of_match_ptr("regulators"), \ .type = REGULATOR_VOLTAGE, \ .id = (_id), \ .n_voltages = (((_max) - (_min)) / (_step) + 1), \ .owner = THIS_MODULE, \ .min_uV = (_min) * 1000, \ .uV_step = (_step) * 1000, \ .vsel_reg = (_vreg), \ .vsel_mask = (_vmask), \ .enable_reg = (_ereg), \ .enable_mask = (_emask), \ .enable_time = (_etime), \ .ops = &rk805_reg_ops, \ } |
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#define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \ _vmask, _ereg, _emask, _etime) \ [_id] = { \ .name = (_match), \ .supply_name = (_supply), \ .of_match = of_match_ptr(_match), \ .regulators_node = of_match_ptr("regulators"), \ .type = REGULATOR_VOLTAGE, \ .id = (_id), \ .n_voltages = (((_max) - (_min)) / (_step) + 1), \ .owner = THIS_MODULE, \ .min_uV = (_min) * 1000, \ .uV_step = (_step) * 1000, \ .vsel_reg = (_vreg), \ .vsel_mask = (_vmask), \ .enable_reg = (_ereg), \ .enable_mask = (_emask), \ .enable_time = (_etime), \ .ops = &rk808_reg_ops, \ } #define RK8XX_DESC_SWITCH(_id, _match, _supply, _ereg, _emask) \ [_id] = { \ .name = (_match), \ .supply_name = (_supply), \ .of_match = of_match_ptr(_match), \ .regulators_node = of_match_ptr("regulators"), \ .type = REGULATOR_VOLTAGE, \ .id = (_id), \ .enable_reg = (_ereg), \ .enable_mask = (_emask), \ .owner = THIS_MODULE, \ .ops = &rk808_switch_ops \ } |
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struct rk808_regulator_data { struct gpio_desc *dvs_gpio[2]; }; |
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static const int rk808_buck_config_regs[] = { RK808_BUCK1_CONFIG_REG, RK808_BUCK2_CONFIG_REG, RK808_BUCK3_CONFIG_REG, RK808_BUCK4_CONFIG_REG, }; |
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static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000), REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0), }; |
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static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev) { struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); |
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int id = rdev_get_id(rdev); |
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struct gpio_desc *gpio = pdata->dvs_gpio[id]; unsigned int val; int ret; |
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if (!gpio || gpiod_get_value(gpio) == 0) |
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return regulator_get_voltage_sel_regmap(rdev); ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg + RK808_DVS_REG_OFFSET, &val); if (ret != 0) return ret; val &= rdev->desc->vsel_mask; val >>= ffs(rdev->desc->vsel_mask) - 1; return val; } static int rk808_buck1_2_i2c_set_voltage_sel(struct regulator_dev *rdev, unsigned sel) { int ret, delta_sel; unsigned int old_sel, tmp, val, mask = rdev->desc->vsel_mask; ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val); if (ret != 0) return ret; tmp = val & ~mask; old_sel = val & mask; old_sel >>= ffs(mask) - 1; delta_sel = sel - old_sel; /* * If directly modify the register to change the voltage, we will face * the risk of overshoot. Put it into a multi-step, can effectively * avoid this problem, a step is 100mv here. */ while (delta_sel > MAX_STEPS_ONE_TIME) { old_sel += MAX_STEPS_ONE_TIME; val = old_sel << (ffs(mask) - 1); val |= tmp; /* * i2c is 400kHz (2.5us per bit) and we must transmit _at least_ * 3 bytes (24 bits) plus start and stop so 26 bits. So we've * got more than 65 us between each voltage change and thus * won't ramp faster than ~1500 uV / us. */ ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val); delta_sel = sel - old_sel; } sel <<= ffs(mask) - 1; val = tmp | sel; ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val); /* * When we change the voltage register directly, the ramp rate is about * 100000uv/us, wait 1us to make sure the target voltage to be stable, * so we needn't wait extra time after that. */ udelay(1); return ret; } static int rk808_buck1_2_set_voltage_sel(struct regulator_dev *rdev, unsigned sel) { struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); |
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int id = rdev_get_id(rdev); |
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struct gpio_desc *gpio = pdata->dvs_gpio[id]; unsigned int reg = rdev->desc->vsel_reg; unsigned old_sel; int ret, gpio_level; |
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if (!gpio) |
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return rk808_buck1_2_i2c_set_voltage_sel(rdev, sel); gpio_level = gpiod_get_value(gpio); if (gpio_level == 0) { reg += RK808_DVS_REG_OFFSET; ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &old_sel); } else { ret = regmap_read(rdev->regmap, reg + RK808_DVS_REG_OFFSET, &old_sel); } if (ret != 0) return ret; sel <<= ffs(rdev->desc->vsel_mask) - 1; sel |= old_sel & ~rdev->desc->vsel_mask; ret = regmap_write(rdev->regmap, reg, sel); if (ret) return ret; gpiod_set_value(gpio, !gpio_level); return ret; } static int rk808_buck1_2_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int old_selector, unsigned int new_selector) { struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); |
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int id = rdev_get_id(rdev); |
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struct gpio_desc *gpio = pdata->dvs_gpio[id]; /* if there is no dvs1/2 pin, we don't need wait extra time here. */ |
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if (!gpio) |
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return 0; return regulator_set_voltage_time_sel(rdev, old_selector, new_selector); } |
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static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) { unsigned int ramp_value = RK808_RAMP_RATE_10MV_PER_US; |
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unsigned int reg = rk808_buck_config_regs[rdev_get_id(rdev)]; |
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switch (ramp_delay) { case 1 ... 2000: ramp_value = RK808_RAMP_RATE_2MV_PER_US; break; case 2001 ... 4000: ramp_value = RK808_RAMP_RATE_4MV_PER_US; break; case 4001 ... 6000: ramp_value = RK808_RAMP_RATE_6MV_PER_US; break; case 6001 ... 10000: break; default: pr_warn("%s ramp_delay: %d not supported, setting 10000 ", rdev->desc->name, ramp_delay); } return regmap_update_bits(rdev->regmap, reg, RK808_RAMP_RATE_MASK, ramp_value); } |
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static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv) |
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{ unsigned int reg; |
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int sel = regulator_map_voltage_linear(rdev, uv, uv); if (sel < 0) return -EINVAL; reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET; return regmap_update_bits(rdev->regmap, reg, rdev->desc->vsel_mask, sel); } |
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static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv) { unsigned int reg; int sel = regulator_map_voltage_linear_range(rdev, uv, uv); if (sel < 0) return -EINVAL; reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET; return regmap_update_bits(rdev->regmap, reg, rdev->desc->vsel_mask, sel); } |
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static int rk805_set_suspend_enable(struct regulator_dev *rdev) { unsigned int reg; reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; return regmap_update_bits(rdev->regmap, reg, rdev->desc->enable_mask, rdev->desc->enable_mask); } static int rk805_set_suspend_disable(struct regulator_dev *rdev) { unsigned int reg; reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; return regmap_update_bits(rdev->regmap, reg, rdev->desc->enable_mask, 0); } |
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static int rk808_set_suspend_enable(struct regulator_dev *rdev) |
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{ unsigned int reg; reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; return regmap_update_bits(rdev->regmap, reg, rdev->desc->enable_mask, 0); } |
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static int rk808_set_suspend_disable(struct regulator_dev *rdev) |
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{ unsigned int reg; reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET; return regmap_update_bits(rdev->regmap, reg, rdev->desc->enable_mask, rdev->desc->enable_mask); } |
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static struct regulator_ops rk805_reg_ops = { .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_suspend_voltage = rk808_set_suspend_voltage, .set_suspend_enable = rk805_set_suspend_enable, .set_suspend_disable = rk805_set_suspend_disable, }; static struct regulator_ops rk805_switch_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_suspend_enable = rk805_set_suspend_enable, .set_suspend_disable = rk805_set_suspend_disable, }; |
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static struct regulator_ops rk808_buck1_2_ops = { |
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.list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, |
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.get_voltage_sel = rk808_buck1_2_get_voltage_sel_regmap, .set_voltage_sel = rk808_buck1_2_set_voltage_sel, .set_voltage_time_sel = rk808_buck1_2_set_voltage_time_sel, |
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.enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_ramp_delay = rk808_set_ramp_delay, |
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.set_suspend_voltage = rk808_set_suspend_voltage, .set_suspend_enable = rk808_set_suspend_enable, .set_suspend_disable = rk808_set_suspend_disable, |
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}; |
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static struct regulator_ops rk808_reg_ops = { |
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.list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_suspend_voltage = rk808_set_suspend_voltage, .set_suspend_enable = rk808_set_suspend_enable, .set_suspend_disable = rk808_set_suspend_disable, }; |
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static struct regulator_ops rk808_reg_ops_ranges = { .list_voltage = regulator_list_voltage_linear_range, .map_voltage = regulator_map_voltage_linear_range, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_suspend_voltage = rk808_set_suspend_voltage_range, .set_suspend_enable = rk808_set_suspend_enable, .set_suspend_disable = rk808_set_suspend_disable, }; |
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static struct regulator_ops rk808_switch_ops = { |
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.enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_suspend_enable = rk808_set_suspend_enable, .set_suspend_disable = rk808_set_suspend_disable, |
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}; |
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static const struct regulator_desc rk805_reg[] = { { .name = "DCDC_REG1", .supply_name = "vcc1", .of_match = of_match_ptr("DCDC_REG1"), .regulators_node = of_match_ptr("regulators"), .id = RK805_ID_DCDC1, .ops = &rk805_reg_ops, .type = REGULATOR_VOLTAGE, .min_uV = 712500, .uV_step = 12500, .n_voltages = 64, .vsel_reg = RK805_BUCK1_ON_VSEL_REG, .vsel_mask = RK818_BUCK_VSEL_MASK, .enable_reg = RK805_DCDC_EN_REG, .enable_mask = BIT(0), .owner = THIS_MODULE, }, { .name = "DCDC_REG2", .supply_name = "vcc2", .of_match = of_match_ptr("DCDC_REG2"), .regulators_node = of_match_ptr("regulators"), .id = RK805_ID_DCDC2, .ops = &rk805_reg_ops, .type = REGULATOR_VOLTAGE, .min_uV = 712500, .uV_step = 12500, .n_voltages = 64, .vsel_reg = RK805_BUCK2_ON_VSEL_REG, .vsel_mask = RK818_BUCK_VSEL_MASK, .enable_reg = RK805_DCDC_EN_REG, .enable_mask = BIT(1), .owner = THIS_MODULE, }, { .name = "DCDC_REG3", .supply_name = "vcc3", .of_match = of_match_ptr("DCDC_REG3"), .regulators_node = of_match_ptr("regulators"), .id = RK805_ID_DCDC3, .ops = &rk805_switch_ops, .type = REGULATOR_VOLTAGE, .n_voltages = 1, .enable_reg = RK805_DCDC_EN_REG, .enable_mask = BIT(2), .owner = THIS_MODULE, }, RK805_DESC(RK805_ID_DCDC4, "DCDC_REG4", "vcc4", 800, 3400, 100, RK805_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK, RK805_DCDC_EN_REG, BIT(3), 0), RK805_DESC(RK805_ID_LDO1, "LDO_REG1", "vcc5", 800, 3400, 100, RK805_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG, BIT(0), 400), RK805_DESC(RK805_ID_LDO2, "LDO_REG2", "vcc5", 800, 3400, 100, RK805_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG, BIT(1), 400), RK805_DESC(RK805_ID_LDO3, "LDO_REG3", "vcc6", 800, 3400, 100, RK805_LDO3_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG, BIT(2), 400), }; |
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static const struct regulator_desc rk808_reg[] = { { .name = "DCDC_REG1", |
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.supply_name = "vcc1", |
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.of_match = of_match_ptr("DCDC_REG1"), .regulators_node = of_match_ptr("regulators"), |
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.id = RK808_ID_DCDC1, |
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.ops = &rk808_buck1_2_ops, |
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.type = REGULATOR_VOLTAGE, |
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.min_uV = 712500, .uV_step = 12500, |
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.n_voltages = 64, |
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.vsel_reg = RK808_BUCK1_ON_VSEL_REG, .vsel_mask = RK808_BUCK_VSEL_MASK, .enable_reg = RK808_DCDC_EN_REG, .enable_mask = BIT(0), .owner = THIS_MODULE, }, { .name = "DCDC_REG2", |
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.supply_name = "vcc2", |
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.of_match = of_match_ptr("DCDC_REG2"), .regulators_node = of_match_ptr("regulators"), |
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.id = RK808_ID_DCDC2, |
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.ops = &rk808_buck1_2_ops, |
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.type = REGULATOR_VOLTAGE, |
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.min_uV = 712500, .uV_step = 12500, |
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.n_voltages = 64, |
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.vsel_reg = RK808_BUCK2_ON_VSEL_REG, .vsel_mask = RK808_BUCK_VSEL_MASK, .enable_reg = RK808_DCDC_EN_REG, .enable_mask = BIT(1), .owner = THIS_MODULE, }, { .name = "DCDC_REG3", |
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.supply_name = "vcc3", |
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.of_match = of_match_ptr("DCDC_REG3"), .regulators_node = of_match_ptr("regulators"), |
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.id = RK808_ID_DCDC3, .ops = &rk808_switch_ops, .type = REGULATOR_VOLTAGE, .n_voltages = 1, .enable_reg = RK808_DCDC_EN_REG, .enable_mask = BIT(2), .owner = THIS_MODULE, |
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}, RK8XX_DESC(RK808_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3300, 100, RK808_BUCK4_ON_VSEL_REG, RK808_BUCK4_VSEL_MASK, RK808_DCDC_EN_REG, BIT(3), 0), RK8XX_DESC(RK808_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100, RK808_LDO1_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, BIT(0), 400), RK8XX_DESC(RK808_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100, RK808_LDO2_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, BIT(1), 400), { |
2cd64ae3d regulator: RK808:... |
525 |
.name = "LDO_REG3", |
b8074eba2 regulator: RK808:... |
526 |
.supply_name = "vcc7", |
9e9daa0a6 regulator: rk808:... |
527 528 |
.of_match = of_match_ptr("LDO_REG3"), .regulators_node = of_match_ptr("regulators"), |
2cd64ae3d regulator: RK808:... |
529 |
.id = RK808_ID_LDO3, |
129d7cf98 regulator: rk808:... |
530 |
.ops = &rk808_reg_ops_ranges, |
2cd64ae3d regulator: RK808:... |
531 532 533 534 535 536 537 538 |
.type = REGULATOR_VOLTAGE, .n_voltages = 16, .linear_ranges = rk808_ldo3_voltage_ranges, .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges), .vsel_reg = RK808_LDO3_ON_VSEL_REG, .vsel_mask = RK808_BUCK4_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(2), |
28249b0c2 regulator: rk808:... |
539 |
.enable_time = 400, |
2cd64ae3d regulator: RK808:... |
540 |
.owner = THIS_MODULE, |
2cd64ae3d regulator: RK808:... |
541 |
}, |
9e9daa0a6 regulator: rk808:... |
542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 |
RK8XX_DESC(RK808_ID_LDO4, "LDO_REG4", "vcc9", 1800, 3400, 100, RK808_LDO4_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, BIT(3), 400), RK8XX_DESC(RK808_ID_LDO5, "LDO_REG5", "vcc9", 1800, 3400, 100, RK808_LDO5_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, BIT(4), 400), RK8XX_DESC(RK808_ID_LDO6, "LDO_REG6", "vcc10", 800, 2500, 100, RK808_LDO6_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, BIT(5), 400), RK8XX_DESC(RK808_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100, RK808_LDO7_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, BIT(6), 400), RK8XX_DESC(RK808_ID_LDO8, "LDO_REG8", "vcc11", 1800, 3400, 100, RK808_LDO8_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG, BIT(7), 400), RK8XX_DESC_SWITCH(RK808_ID_SWITCH1, "SWITCH_REG1", "vcc8", RK808_DCDC_EN_REG, BIT(5)), RK8XX_DESC_SWITCH(RK808_ID_SWITCH2, "SWITCH_REG2", "vcc12", RK808_DCDC_EN_REG, BIT(6)), |
2cd64ae3d regulator: RK808:... |
561 |
}; |
113752935 regulator: rk808:... |
562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 |
static const struct regulator_desc rk818_reg[] = { { .name = "DCDC_REG1", .supply_name = "vcc1", .of_match = of_match_ptr("DCDC_REG1"), .regulators_node = of_match_ptr("regulators"), .id = RK818_ID_DCDC1, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, .min_uV = 712500, .uV_step = 12500, .n_voltages = 64, .vsel_reg = RK818_BUCK1_ON_VSEL_REG, .vsel_mask = RK818_BUCK_VSEL_MASK, .enable_reg = RK818_DCDC_EN_REG, .enable_mask = BIT(0), .owner = THIS_MODULE, }, { .name = "DCDC_REG2", .supply_name = "vcc2", .of_match = of_match_ptr("DCDC_REG2"), .regulators_node = of_match_ptr("regulators"), .id = RK818_ID_DCDC2, .ops = &rk808_reg_ops, .type = REGULATOR_VOLTAGE, .min_uV = 712500, .uV_step = 12500, .n_voltages = 64, .vsel_reg = RK818_BUCK2_ON_VSEL_REG, .vsel_mask = RK818_BUCK_VSEL_MASK, .enable_reg = RK818_DCDC_EN_REG, .enable_mask = BIT(1), .owner = THIS_MODULE, }, { .name = "DCDC_REG3", .supply_name = "vcc3", .of_match = of_match_ptr("DCDC_REG3"), .regulators_node = of_match_ptr("regulators"), .id = RK818_ID_DCDC3, .ops = &rk808_switch_ops, .type = REGULATOR_VOLTAGE, .n_voltages = 1, .enable_reg = RK818_DCDC_EN_REG, .enable_mask = BIT(2), .owner = THIS_MODULE, }, RK8XX_DESC(RK818_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3600, 100, RK818_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK, RK818_DCDC_EN_REG, BIT(3), 0), RK8XX_DESC(RK818_ID_BOOST, "DCDC_BOOST", "boost", 4700, 5400, 100, RK818_BOOST_LDO9_ON_VSEL_REG, RK818_BOOST_ON_VSEL_MASK, RK818_DCDC_EN_REG, BIT(4), 0), RK8XX_DESC(RK818_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100, RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, BIT(0), 400), RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100, |
75f881153 regulator: rk808:... |
618 |
RK818_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, |
113752935 regulator: rk808:... |
619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 |
BIT(1), 400), { .name = "LDO_REG3", .supply_name = "vcc7", .of_match = of_match_ptr("LDO_REG3"), .regulators_node = of_match_ptr("regulators"), .id = RK818_ID_LDO3, .ops = &rk808_reg_ops_ranges, .type = REGULATOR_VOLTAGE, .n_voltages = 16, .linear_ranges = rk808_ldo3_voltage_ranges, .n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges), .vsel_reg = RK818_LDO3_ON_VSEL_REG, .vsel_mask = RK818_LDO3_ON_VSEL_MASK, .enable_reg = RK818_LDO_EN_REG, .enable_mask = BIT(2), .enable_time = 400, .owner = THIS_MODULE, }, RK8XX_DESC(RK818_ID_LDO4, "LDO_REG4", "vcc8", 1800, 3400, 100, RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, BIT(3), 400), RK8XX_DESC(RK818_ID_LDO5, "LDO_REG5", "vcc7", 1800, 3400, 100, RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, BIT(4), 400), RK8XX_DESC(RK818_ID_LDO6, "LDO_REG6", "vcc8", 800, 2500, 100, RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, BIT(5), 400), RK8XX_DESC(RK818_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100, RK818_LDO7_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, BIT(6), 400), RK8XX_DESC(RK818_ID_LDO8, "LDO_REG8", "vcc8", 1800, 3400, 100, RK818_LDO8_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG, BIT(7), 400), RK8XX_DESC(RK818_ID_LDO9, "LDO_REG9", "vcc9", 1800, 3400, 100, RK818_BOOST_LDO9_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_DCDC_EN_REG, BIT(5), 400), RK8XX_DESC_SWITCH(RK818_ID_SWITCH, "SWITCH_REG", "vcc9", RK818_DCDC_EN_REG, BIT(6)), RK8XX_DESC_SWITCH(RK818_ID_HDMI_SWITCH, "HDMI_SWITCH", "h_5v", RK818_H5V_EN_REG, BIT(0)), RK8XX_DESC_SWITCH(RK818_ID_OTG_SWITCH, "OTG_SWITCH", "usb", RK818_DCDC_EN_REG, BIT(7)), }; |
bad47ad2e regulator: rk808:... |
663 664 665 666 667 668 |
static int rk808_regulator_dt_parse_pdata(struct device *dev, struct device *client_dev, struct regmap *map, struct rk808_regulator_data *pdata) { struct device_node *np; |
9e9daa0a6 regulator: rk808:... |
669 |
int tmp, ret = 0, i; |
bad47ad2e regulator: rk808:... |
670 671 672 673 |
np = of_get_child_by_name(client_dev->of_node, "regulators"); if (!np) return -ENXIO; |
bad47ad2e regulator: rk808:... |
674 |
for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) { |
a13eaf02e regulator: rk808:... |
675 676 677 |
pdata->dvs_gpio[i] = devm_gpiod_get_index_optional(client_dev, "dvs", i, GPIOD_OUT_LOW); |
bad47ad2e regulator: rk808:... |
678 |
if (IS_ERR(pdata->dvs_gpio[i])) { |
a13eaf02e regulator: rk808:... |
679 680 681 682 683 684 685 |
ret = PTR_ERR(pdata->dvs_gpio[i]); dev_err(dev, "failed to get dvs%d gpio (%d) ", i, ret); goto dt_parse_end; } if (!pdata->dvs_gpio[i]) { |
bad47ad2e regulator: rk808:... |
686 687 688 689 |
dev_warn(dev, "there is no dvs%d gpio ", i); continue; } |
bad47ad2e regulator: rk808:... |
690 691 692 693 694 695 696 697 698 699 |
tmp = i ? RK808_DVS2_POL : RK808_DVS1_POL; ret = regmap_update_bits(map, RK808_IO_POL_REG, tmp, gpiod_is_active_low(pdata->dvs_gpio[i]) ? 0 : tmp); } dt_parse_end: of_node_put(np); return ret; } |
2cd64ae3d regulator: RK808:... |
700 701 702 |
static int rk808_regulator_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); |
d76c333e9 regulator: RK808:... |
703 |
struct i2c_client *client = rk808->i2c; |
462004f12 regulator: rk808:... |
704 |
struct regulator_config config = {}; |
2cd64ae3d regulator: RK808:... |
705 |
struct regulator_dev *rk808_rdev; |
bad47ad2e regulator: rk808:... |
706 |
struct rk808_regulator_data *pdata; |
113752935 regulator: rk808:... |
707 708 |
const struct regulator_desc *regulators; int ret, i, nregulators; |
2cd64ae3d regulator: RK808:... |
709 |
|
bad47ad2e regulator: rk808:... |
710 711 712 |
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; |
2cd64ae3d regulator: RK808:... |
713 |
|
bad47ad2e regulator: rk808:... |
714 715 |
ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev, rk808->regmap, pdata); |
571a40108 regulator: rk808:... |
716 |
if (ret < 0) |
2cd64ae3d regulator: RK808:... |
717 |
return ret; |
bad47ad2e regulator: rk808:... |
718 |
platform_set_drvdata(pdev, pdata); |
113752935 regulator: rk808:... |
719 |
switch (rk808->variant) { |
c4e0d344c regulator: rk808:... |
720 721 722 723 |
case RK805_ID: regulators = rk805_reg; nregulators = RK805_NUM_REGULATORS; break; |
113752935 regulator: rk808:... |
724 725 726 727 728 729 730 731 732 733 734 735 736 737 |
case RK808_ID: regulators = rk808_reg; nregulators = RK808_NUM_REGULATORS; break; case RK818_ID: regulators = rk818_reg; nregulators = RK818_NUM_REGULATORS; break; default: dev_err(&client->dev, "unsupported RK8XX ID %lu ", rk808->variant); return -EINVAL; } |
9e9daa0a6 regulator: rk808:... |
738 739 740 |
config.dev = &client->dev; config.driver_data = pdata; config.regmap = rk808->regmap; |
2cd64ae3d regulator: RK808:... |
741 |
/* Instantiate the regulators */ |
113752935 regulator: rk808:... |
742 |
for (i = 0; i < nregulators; i++) { |
2cd64ae3d regulator: RK808:... |
743 |
rk808_rdev = devm_regulator_register(&pdev->dev, |
113752935 regulator: rk808:... |
744 |
®ulators[i], &config); |
2cd64ae3d regulator: RK808:... |
745 |
if (IS_ERR(rk808_rdev)) { |
d76c333e9 regulator: RK808:... |
746 |
dev_err(&client->dev, |
2cd64ae3d regulator: RK808:... |
747 748 749 750 |
"failed to register %d regulator ", i); return PTR_ERR(rk808_rdev); } |
2cd64ae3d regulator: RK808:... |
751 |
} |
571a40108 regulator: rk808:... |
752 |
|
2cd64ae3d regulator: RK808:... |
753 754 755 756 757 758 |
return 0; } static struct platform_driver rk808_regulator_driver = { .probe = rk808_regulator_probe, .driver = { |
556ae220a regulator: rk808:... |
759 |
.name = "rk808-regulator" |
2cd64ae3d regulator: RK808:... |
760 761 762 763 |
}, }; module_platform_driver(rk808_regulator_driver); |
113752935 regulator: rk808:... |
764 765 766 767 |
MODULE_DESCRIPTION("regulator driver for the RK808/RK818 series PMICs"); MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>"); MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>"); MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>"); |
2cd64ae3d regulator: RK808:... |
768 769 |
MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:rk808-regulator"); |