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drivers/regulator/s5m8767.c
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// SPDX-License-Identifier: GPL-2.0+ // // Copyright (c) 2011 Samsung Electronics Co., Ltd // http://www.samsung.com |
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#include <linux/err.h> |
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#include <linux/of_gpio.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/module.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> |
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#include <linux/mfd/samsung/core.h> #include <linux/mfd/samsung/s5m8767.h> |
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#include <linux/regulator/of_regulator.h> |
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#include <linux/regmap.h> |
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#define S5M8767_OPMODE_NORMAL_MODE 0x1 |
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struct s5m8767_info { struct device *dev; |
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struct sec_pmic_dev *iodev; |
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int num_regulators; |
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struct sec_opmode_data *opmode; |
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int ramp_delay; bool buck2_ramp; bool buck3_ramp; bool buck4_ramp; bool buck2_gpiodvs; bool buck3_gpiodvs; bool buck4_gpiodvs; u8 buck2_vol[8]; u8 buck3_vol[8]; u8 buck4_vol[8]; int buck_gpios[3]; |
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int buck_ds[3]; |
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int buck_gpioindex; }; |
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struct sec_voltage_desc { |
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int max; int min; int step; }; |
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static const struct sec_voltage_desc buck_voltage_val1 = { |
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.max = 2225000, .min = 650000, .step = 6250, }; |
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static const struct sec_voltage_desc buck_voltage_val2 = { |
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.max = 1600000, .min = 600000, .step = 6250, }; |
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static const struct sec_voltage_desc buck_voltage_val3 = { |
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.max = 3000000, .min = 750000, .step = 12500, }; |
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static const struct sec_voltage_desc ldo_voltage_val1 = { |
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.max = 3950000, .min = 800000, .step = 50000, }; |
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static const struct sec_voltage_desc ldo_voltage_val2 = { |
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.max = 2375000, .min = 800000, .step = 25000, }; |
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static const struct sec_voltage_desc *reg_voltage_map[] = { |
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[S5M8767_LDO1] = &ldo_voltage_val2, [S5M8767_LDO2] = &ldo_voltage_val2, [S5M8767_LDO3] = &ldo_voltage_val1, [S5M8767_LDO4] = &ldo_voltage_val1, [S5M8767_LDO5] = &ldo_voltage_val1, [S5M8767_LDO6] = &ldo_voltage_val2, [S5M8767_LDO7] = &ldo_voltage_val2, [S5M8767_LDO8] = &ldo_voltage_val2, [S5M8767_LDO9] = &ldo_voltage_val1, [S5M8767_LDO10] = &ldo_voltage_val1, [S5M8767_LDO11] = &ldo_voltage_val1, [S5M8767_LDO12] = &ldo_voltage_val1, [S5M8767_LDO13] = &ldo_voltage_val1, [S5M8767_LDO14] = &ldo_voltage_val1, [S5M8767_LDO15] = &ldo_voltage_val2, [S5M8767_LDO16] = &ldo_voltage_val1, [S5M8767_LDO17] = &ldo_voltage_val1, [S5M8767_LDO18] = &ldo_voltage_val1, [S5M8767_LDO19] = &ldo_voltage_val1, [S5M8767_LDO20] = &ldo_voltage_val1, [S5M8767_LDO21] = &ldo_voltage_val1, [S5M8767_LDO22] = &ldo_voltage_val1, [S5M8767_LDO23] = &ldo_voltage_val1, [S5M8767_LDO24] = &ldo_voltage_val1, [S5M8767_LDO25] = &ldo_voltage_val1, [S5M8767_LDO26] = &ldo_voltage_val1, [S5M8767_LDO27] = &ldo_voltage_val1, [S5M8767_LDO28] = &ldo_voltage_val1, [S5M8767_BUCK1] = &buck_voltage_val1, [S5M8767_BUCK2] = &buck_voltage_val2, [S5M8767_BUCK3] = &buck_voltage_val2, [S5M8767_BUCK4] = &buck_voltage_val2, [S5M8767_BUCK5] = &buck_voltage_val1, [S5M8767_BUCK6] = &buck_voltage_val1, |
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[S5M8767_BUCK7] = &buck_voltage_val3, [S5M8767_BUCK8] = &buck_voltage_val3, |
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[S5M8767_BUCK9] = &buck_voltage_val3, }; |
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static const unsigned int s5m8767_opmode_reg[][4] = { |
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/* {OFF, ON, LOWPOWER, SUSPEND} */ /* LDO1 ... LDO28 */ {0x0, 0x3, 0x2, 0x1}, /* LDO1 */ {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x0, 0x0, 0x0}, {0x0, 0x3, 0x2, 0x1}, /* LDO5 */ {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, /* LDO10 */ {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, /* LDO15 */ {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x0, 0x0, 0x0}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, /* LDO20 */ {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x0, 0x0, 0x0}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, /* LDO25 */ {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, {0x0, 0x3, 0x2, 0x1}, /* LDO28 */ /* BUCK1 ... BUCK9 */ {0x0, 0x3, 0x1, 0x1}, /* BUCK1 */ {0x0, 0x3, 0x1, 0x1}, {0x0, 0x3, 0x1, 0x1}, {0x0, 0x3, 0x1, 0x1}, {0x0, 0x3, 0x2, 0x1}, /* BUCK5 */ {0x0, 0x3, 0x1, 0x1}, {0x0, 0x3, 0x1, 0x1}, {0x0, 0x3, 0x1, 0x1}, {0x0, 0x3, 0x1, 0x1}, /* BUCK9 */ }; |
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static int s5m8767_get_register(struct s5m8767_info *s5m8767, int reg_id, int *reg, int *enable_ctrl) |
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{ |
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int i; |
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unsigned int mode; |
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switch (reg_id) { case S5M8767_LDO1 ... S5M8767_LDO2: *reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1); break; case S5M8767_LDO3 ... S5M8767_LDO28: *reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3); break; case S5M8767_BUCK1: *reg = S5M8767_REG_BUCK1CTRL1; break; case S5M8767_BUCK2 ... S5M8767_BUCK4: *reg = S5M8767_REG_BUCK2CTRL + (reg_id - S5M8767_BUCK2) * 9; break; case S5M8767_BUCK5: *reg = S5M8767_REG_BUCK5CTRL1; break; case S5M8767_BUCK6 ... S5M8767_BUCK9: *reg = S5M8767_REG_BUCK6CTRL1 + (reg_id - S5M8767_BUCK6) * 2; break; default: return -EINVAL; } |
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for (i = 0; i < s5m8767->num_regulators; i++) { if (s5m8767->opmode[i].id == reg_id) { mode = s5m8767->opmode[i].mode; break; } } |
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if (i >= s5m8767->num_regulators) return -EINVAL; *enable_ctrl = s5m8767_opmode_reg[reg_id][mode] << S5M8767_ENCTRL_SHIFT; |
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return 0; } |
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static int s5m8767_get_vsel_reg(int reg_id, struct s5m8767_info *s5m8767) |
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{ |
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int reg; switch (reg_id) { case S5M8767_LDO1 ... S5M8767_LDO2: reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1); break; case S5M8767_LDO3 ... S5M8767_LDO28: reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3); break; case S5M8767_BUCK1: reg = S5M8767_REG_BUCK1CTRL2; break; case S5M8767_BUCK2: |
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reg = S5M8767_REG_BUCK2DVS1; |
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if (s5m8767->buck2_gpiodvs) reg += s5m8767->buck_gpioindex; |
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break; case S5M8767_BUCK3: |
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reg = S5M8767_REG_BUCK3DVS1; |
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if (s5m8767->buck3_gpiodvs) reg += s5m8767->buck_gpioindex; |
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break; case S5M8767_BUCK4: |
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reg = S5M8767_REG_BUCK4DVS1; |
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if (s5m8767->buck4_gpiodvs) reg += s5m8767->buck_gpioindex; |
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break; case S5M8767_BUCK5: reg = S5M8767_REG_BUCK5CTRL2; break; case S5M8767_BUCK6 ... S5M8767_BUCK9: reg = S5M8767_REG_BUCK6CTRL2 + (reg_id - S5M8767_BUCK6) * 2; break; default: return -EINVAL; } |
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return reg; |
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} |
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static int s5m8767_convert_voltage_to_sel(const struct sec_voltage_desc *desc, int min_vol) |
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{ |
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int selector = 0; |
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if (desc == NULL) return -EINVAL; |
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if (min_vol > desc->max) |
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return -EINVAL; |
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if (min_vol < desc->min) min_vol = desc->min; selector = DIV_ROUND_UP(min_vol - desc->min, desc->step); |
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if (desc->min + desc->step * selector > desc->max) |
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return -EINVAL; |
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return selector; |
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} |
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static inline int s5m8767_set_high(struct s5m8767_info *s5m8767) |
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{ int temp_index = s5m8767->buck_gpioindex; gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1); gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1); gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1); |
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return 0; |
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} |
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static inline int s5m8767_set_low(struct s5m8767_info *s5m8767) |
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{ int temp_index = s5m8767->buck_gpioindex; gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1); gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1); gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1); |
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return 0; |
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} |
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static int s5m8767_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) |
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{ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); |
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int reg_id = rdev_get_id(rdev); |
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int old_index, index = 0; |
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u8 *buck234_vol = NULL; |
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switch (reg_id) { case S5M8767_LDO1 ... S5M8767_LDO28: |
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break; case S5M8767_BUCK1 ... S5M8767_BUCK6: |
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if (reg_id == S5M8767_BUCK2 && s5m8767->buck2_gpiodvs) buck234_vol = &s5m8767->buck2_vol[0]; else if (reg_id == S5M8767_BUCK3 && s5m8767->buck3_gpiodvs) buck234_vol = &s5m8767->buck3_vol[0]; else if (reg_id == S5M8767_BUCK4 && s5m8767->buck4_gpiodvs) buck234_vol = &s5m8767->buck4_vol[0]; |
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break; case S5M8767_BUCK7 ... S5M8767_BUCK8: return -EINVAL; case S5M8767_BUCK9: |
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break; default: return -EINVAL; } |
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/* buck234_vol != NULL means to control buck234 voltage via DVS GPIO */ if (buck234_vol) { |
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while (*buck234_vol != selector) { |
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buck234_vol++; index++; } old_index = s5m8767->buck_gpioindex; s5m8767->buck_gpioindex = index; if (index > old_index) |
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return s5m8767_set_high(s5m8767); |
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else |
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return s5m8767_set_low(s5m8767); |
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} else { |
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return regulator_set_voltage_sel_regmap(rdev, selector); |
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} |
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} |
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static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev, unsigned int old_sel, unsigned int new_sel) { struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); |
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if ((old_sel < new_sel) && s5m8767->ramp_delay) |
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return DIV_ROUND_UP(rdev->desc->uV_step * (new_sel - old_sel), |
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s5m8767->ramp_delay * 1000); |
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return 0; |
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} |
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static const struct regulator_ops s5m8767_ops = { |
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.list_voltage = regulator_list_voltage_linear, |
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.is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, |
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.get_voltage_sel = regulator_get_voltage_sel_regmap, |
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.set_voltage_sel = s5m8767_set_voltage_sel, |
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.set_voltage_time_sel = s5m8767_set_voltage_time_sel, }; |
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static const struct regulator_ops s5m8767_buck78_ops = { |
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.list_voltage = regulator_list_voltage_linear, |
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.is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, |
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.get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, |
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}; |
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#define s5m8767_regulator_desc(_name) { \ .name = #_name, \ .id = S5M8767_##_name, \ .ops = &s5m8767_ops, \ |
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.type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ } |
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#define s5m8767_regulator_buck78_desc(_name) { \ .name = #_name, \ .id = S5M8767_##_name, \ .ops = &s5m8767_buck78_ops, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ } |
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static struct regulator_desc regulators[] = { |
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s5m8767_regulator_desc(LDO1), s5m8767_regulator_desc(LDO2), s5m8767_regulator_desc(LDO3), s5m8767_regulator_desc(LDO4), s5m8767_regulator_desc(LDO5), s5m8767_regulator_desc(LDO6), s5m8767_regulator_desc(LDO7), s5m8767_regulator_desc(LDO8), s5m8767_regulator_desc(LDO9), s5m8767_regulator_desc(LDO10), s5m8767_regulator_desc(LDO11), s5m8767_regulator_desc(LDO12), s5m8767_regulator_desc(LDO13), s5m8767_regulator_desc(LDO14), s5m8767_regulator_desc(LDO15), s5m8767_regulator_desc(LDO16), s5m8767_regulator_desc(LDO17), s5m8767_regulator_desc(LDO18), s5m8767_regulator_desc(LDO19), s5m8767_regulator_desc(LDO20), s5m8767_regulator_desc(LDO21), s5m8767_regulator_desc(LDO22), s5m8767_regulator_desc(LDO23), s5m8767_regulator_desc(LDO24), s5m8767_regulator_desc(LDO25), s5m8767_regulator_desc(LDO26), s5m8767_regulator_desc(LDO27), s5m8767_regulator_desc(LDO28), s5m8767_regulator_desc(BUCK1), s5m8767_regulator_desc(BUCK2), s5m8767_regulator_desc(BUCK3), s5m8767_regulator_desc(BUCK4), s5m8767_regulator_desc(BUCK5), s5m8767_regulator_desc(BUCK6), |
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s5m8767_regulator_buck78_desc(BUCK7), s5m8767_regulator_buck78_desc(BUCK8), |
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s5m8767_regulator_desc(BUCK9), |
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}; |
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/* * Enable GPIO control over BUCK9 in regulator_config for that regulator. */ static void s5m8767_regulator_config_ext_control(struct s5m8767_info *s5m8767, struct sec_regulator_data *rdata, struct regulator_config *config) { int i, mode = 0; if (rdata->id != S5M8767_BUCK9) return; /* Check if opmode for regulator matches S5M8767_ENCTRL_USE_GPIO */ for (i = 0; i < s5m8767->num_regulators; i++) { const struct sec_opmode_data *opmode = &s5m8767->opmode[i]; if (opmode->id == rdata->id) { mode = s5m8767_opmode_reg[rdata->id][opmode->mode]; break; } } if (mode != S5M8767_ENCTRL_USE_GPIO) { dev_warn(s5m8767->dev, |
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"ext-control for %pOFn: mismatched op_mode (%x), ignoring ", rdata->reg_node, mode); |
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return; } |
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if (!rdata->ext_control_gpiod) { |
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dev_warn(s5m8767->dev, |
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"ext-control for %pOFn: GPIO not valid, ignoring ", rdata->reg_node); |
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return; } |
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config->ena_gpiod = rdata->ext_control_gpiod; |
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} /* * Turn on GPIO control over BUCK9. */ static int s5m8767_enable_ext_control(struct s5m8767_info *s5m8767, struct regulator_dev *rdev) { |
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int id = rdev_get_id(rdev); |
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int ret, reg, enable_ctrl; |
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if (id != S5M8767_BUCK9) |
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return -EINVAL; |
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ret = s5m8767_get_register(s5m8767, id, ®, &enable_ctrl); |
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if (ret) return ret; return regmap_update_bits(s5m8767->iodev->regmap_pmic, reg, S5M8767_ENCTRL_MASK, S5M8767_ENCTRL_USE_GPIO << S5M8767_ENCTRL_SHIFT); } |
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451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 |
#ifdef CONFIG_OF static int s5m8767_pmic_dt_parse_dvs_gpio(struct sec_pmic_dev *iodev, struct sec_platform_data *pdata, struct device_node *pmic_np) { int i, gpio; for (i = 0; i < 3; i++) { gpio = of_get_named_gpio(pmic_np, "s5m8767,pmic-buck-dvs-gpios", i); if (!gpio_is_valid(gpio)) { dev_err(iodev->dev, "invalid gpio[%d]: %d ", i, gpio); return -EINVAL; } pdata->buck_gpios[i] = gpio; } return 0; } static int s5m8767_pmic_dt_parse_ds_gpio(struct sec_pmic_dev *iodev, struct sec_platform_data *pdata, struct device_node *pmic_np) { int i, gpio; for (i = 0; i < 3; i++) { gpio = of_get_named_gpio(pmic_np, "s5m8767,pmic-buck-ds-gpios", i); if (!gpio_is_valid(gpio)) { dev_err(iodev->dev, "invalid gpio[%d]: %d ", i, gpio); return -EINVAL; } pdata->buck_ds[i] = gpio; } return 0; } |
cbb0ed495
|
489 |
static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev, |
26aec009f
|
490 491 |
struct sec_platform_data *pdata) { |
cbb0ed495
|
492 |
struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); |
26aec009f
|
493 494 495 |
struct device_node *pmic_np, *regulators_np, *reg_np; struct sec_regulator_data *rdata; struct sec_opmode_data *rmode; |
04f9f068a
|
496 |
unsigned int i, dvs_voltage_nr = 8, ret; |
26aec009f
|
497 498 499 500 501 502 503 |
pmic_np = iodev->dev->of_node; if (!pmic_np) { dev_err(iodev->dev, "could not find pmic sub-node "); return -ENODEV; } |
4e52c03df
|
504 |
regulators_np = of_get_child_by_name(pmic_np, "regulators"); |
26aec009f
|
505 506 507 508 509 510 511 |
if (!regulators_np) { dev_err(iodev->dev, "could not find regulators sub-node "); return -EINVAL; } /* count the number of regulators to be supported in pmic */ |
1f91b6f6c
|
512 |
pdata->num_regulators = of_get_child_count(regulators_np); |
26aec009f
|
513 |
|
a86854d0c
|
514 515 516 |
rdata = devm_kcalloc(&pdev->dev, pdata->num_regulators, sizeof(*rdata), GFP_KERNEL); |
4754b4211
|
517 |
if (!rdata) |
26aec009f
|
518 |
return -ENOMEM; |
26aec009f
|
519 |
|
a86854d0c
|
520 521 522 |
rmode = devm_kcalloc(&pdev->dev, pdata->num_regulators, sizeof(*rmode), GFP_KERNEL); |
4754b4211
|
523 |
if (!rmode) |
26aec009f
|
524 |
return -ENOMEM; |
26aec009f
|
525 526 527 528 529 |
pdata->regulators = rdata; pdata->opmode = rmode; for_each_child_of_node(regulators_np, reg_np) { for (i = 0; i < ARRAY_SIZE(regulators); i++) |
c32569e35
|
530 |
if (of_node_name_eq(reg_np, regulators[i].name)) |
26aec009f
|
531 532 533 534 |
break; if (i == ARRAY_SIZE(regulators)) { dev_warn(iodev->dev, |
0c9721a5d
|
535 536 537 |
"don't know how to configure regulator %pOFn ", reg_np); |
26aec009f
|
538 539 |
continue; } |
5be0e549e
|
540 |
rdata->ext_control_gpiod = devm_fwnode_gpiod_get( |
63239e4bf
|
541 |
&pdev->dev, |
5be0e549e
|
542 543 |
of_fwnode_handle(reg_np), "s5m8767,pmic-ext-control", |
63239e4bf
|
544 545 |
GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE, "s5m8767"); |
025bf3772
|
546 547 548 |
if (PTR_ERR(rdata->ext_control_gpiod) == -ENOENT) rdata->ext_control_gpiod = NULL; else if (IS_ERR(rdata->ext_control_gpiod)) |
9ae5cc75c
|
549 |
return PTR_ERR(rdata->ext_control_gpiod); |
ee1e0994a
|
550 |
|
26aec009f
|
551 552 |
rdata->id = i; rdata->initdata = of_get_regulator_init_data( |
072e78b12
|
553 554 |
&pdev->dev, reg_np, ®ulators[i]); |
26aec009f
|
555 556 557 558 559 560 |
rdata->reg_node = reg_np; rdata++; rmode->id = i; if (of_property_read_u32(reg_np, "op_mode", &rmode->mode)) { dev_warn(iodev->dev, |
f3c7f7b63
|
561 562 |
"no op_mode property at %pOF ", |
7799167b7
|
563 |
reg_np); |
26aec009f
|
564 565 566 567 568 |
rmode->mode = S5M8767_OPMODE_NORMAL_MODE; } rmode++; } |
b7db01f3b
|
569 |
of_node_put(regulators_np); |
04f9f068a
|
570 |
if (of_get_property(pmic_np, "s5m8767,pmic-buck2-uses-gpio-dvs", NULL)) { |
26aec009f
|
571 |
pdata->buck2_gpiodvs = true; |
04f9f068a
|
572 573 574 575 576 577 578 579 580 581 |
if (of_property_read_u32_array(pmic_np, "s5m8767,pmic-buck2-dvs-voltage", pdata->buck2_voltage, dvs_voltage_nr)) { dev_err(iodev->dev, "buck2 voltages not specified "); return -EINVAL; } } if (of_get_property(pmic_np, "s5m8767,pmic-buck3-uses-gpio-dvs", NULL)) { |
26aec009f
|
582 |
pdata->buck3_gpiodvs = true; |
04f9f068a
|
583 584 585 586 587 588 589 590 591 592 |
if (of_property_read_u32_array(pmic_np, "s5m8767,pmic-buck3-dvs-voltage", pdata->buck3_voltage, dvs_voltage_nr)) { dev_err(iodev->dev, "buck3 voltages not specified "); return -EINVAL; } } if (of_get_property(pmic_np, "s5m8767,pmic-buck4-uses-gpio-dvs", NULL)) { |
26aec009f
|
593 |
pdata->buck4_gpiodvs = true; |
04f9f068a
|
594 595 596 597 598 599 600 601 |
if (of_property_read_u32_array(pmic_np, "s5m8767,pmic-buck4-dvs-voltage", pdata->buck4_voltage, dvs_voltage_nr)) { dev_err(iodev->dev, "buck4 voltages not specified "); return -EINVAL; } } |
26aec009f
|
602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 |
if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) { ret = s5m8767_pmic_dt_parse_dvs_gpio(iodev, pdata, pmic_np); if (ret) return -EINVAL; if (of_property_read_u32(pmic_np, "s5m8767,pmic-buck-default-dvs-idx", &pdata->buck_default_idx)) { pdata->buck_default_idx = 0; } else { if (pdata->buck_default_idx >= 8) { pdata->buck_default_idx = 0; dev_info(iodev->dev, "invalid value for default dvs index, use 0 "); } } |
26aec009f
|
620 621 622 623 624 |
} ret = s5m8767_pmic_dt_parse_ds_gpio(iodev, pdata, pmic_np); if (ret) return -EINVAL; |
033054e86
|
625 626 |
if (of_get_property(pmic_np, "s5m8767,pmic-buck2-ramp-enable", NULL)) pdata->buck2_ramp_enable = true; |
26aec009f
|
627 |
|
033054e86
|
628 629 |
if (of_get_property(pmic_np, "s5m8767,pmic-buck3-ramp-enable", NULL)) pdata->buck3_ramp_enable = true; |
26aec009f
|
630 |
|
033054e86
|
631 632 633 634 635 636 637 638 |
if (of_get_property(pmic_np, "s5m8767,pmic-buck4-ramp-enable", NULL)) pdata->buck4_ramp_enable = true; if (pdata->buck2_ramp_enable || pdata->buck3_ramp_enable || pdata->buck4_ramp_enable) { if (of_property_read_u32(pmic_np, "s5m8767,pmic-buck-ramp-delay", &pdata->buck_ramp_delay)) pdata->buck_ramp_delay = 0; |
26aec009f
|
639 640 641 642 643 |
} return 0; } #else |
cbb0ed495
|
644 |
static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev, |
26aec009f
|
645 646 647 648 649 |
struct sec_platform_data *pdata) { return 0; } #endif /* CONFIG_OF */ |
a5023574d
|
650 |
static int s5m8767_pmic_probe(struct platform_device *pdev) |
9767ec7fe
|
651 |
{ |
63063bfbf
|
652 |
struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); |
26aec009f
|
653 |
struct sec_platform_data *pdata = iodev->pdata; |
c172708d3
|
654 |
struct regulator_config config = { }; |
9767ec7fe
|
655 |
struct s5m8767_info *s5m8767; |
0a3ade7ec
|
656 |
int i, ret, buck_init; |
9767ec7fe
|
657 |
|
e81d7bc89
|
658 659 660 661 662 |
if (!pdata) { dev_err(pdev->dev.parent, "Platform data not supplied "); return -ENODEV; } |
26aec009f
|
663 |
if (iodev->dev->of_node) { |
cbb0ed495
|
664 |
ret = s5m8767_pmic_dt_parse_pdata(pdev, pdata); |
26aec009f
|
665 666 667 |
if (ret) return ret; } |
6c4efe247
|
668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 |
if (pdata->buck2_gpiodvs) { if (pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) { dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID "); return -EINVAL; } } if (pdata->buck3_gpiodvs) { if (pdata->buck2_gpiodvs || pdata->buck4_gpiodvs) { dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID "); return -EINVAL; } } if (pdata->buck4_gpiodvs) { if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs) { dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID "); return -EINVAL; } } |
9767ec7fe
|
691 692 693 694 |
s5m8767 = devm_kzalloc(&pdev->dev, sizeof(struct s5m8767_info), GFP_KERNEL); if (!s5m8767) return -ENOMEM; |
9767ec7fe
|
695 696 |
s5m8767->dev = &pdev->dev; s5m8767->iodev = iodev; |
9bb096ff3
|
697 |
s5m8767->num_regulators = pdata->num_regulators; |
9767ec7fe
|
698 |
platform_set_drvdata(pdev, s5m8767); |
9767ec7fe
|
699 700 701 702 703 704 705 706 |
s5m8767->buck_gpioindex = pdata->buck_default_idx; s5m8767->buck2_gpiodvs = pdata->buck2_gpiodvs; s5m8767->buck3_gpiodvs = pdata->buck3_gpiodvs; s5m8767->buck4_gpiodvs = pdata->buck4_gpiodvs; s5m8767->buck_gpios[0] = pdata->buck_gpios[0]; s5m8767->buck_gpios[1] = pdata->buck_gpios[1]; s5m8767->buck_gpios[2] = pdata->buck_gpios[2]; |
c848bc853
|
707 708 709 |
s5m8767->buck_ds[0] = pdata->buck_ds[0]; s5m8767->buck_ds[1] = pdata->buck_ds[1]; s5m8767->buck_ds[2] = pdata->buck_ds[2]; |
9767ec7fe
|
710 711 712 713 |
s5m8767->ramp_delay = pdata->buck_ramp_delay; s5m8767->buck2_ramp = pdata->buck2_ramp_enable; s5m8767->buck3_ramp = pdata->buck3_ramp_enable; s5m8767->buck4_ramp = pdata->buck4_ramp_enable; |
7e44bb83a
|
714 |
s5m8767->opmode = pdata->opmode; |
9767ec7fe
|
715 |
|
c848bc853
|
716 |
buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, |
854f73ecb
|
717 |
pdata->buck2_init); |
c848bc853
|
718 |
|
d13733f4a
|
719 720 |
regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK2DVS2, buck_init); |
c848bc853
|
721 722 |
buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, |
854f73ecb
|
723 |
pdata->buck3_init); |
c848bc853
|
724 |
|
d13733f4a
|
725 726 |
regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK3DVS2, buck_init); |
c848bc853
|
727 728 |
buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, |
854f73ecb
|
729 |
pdata->buck4_init); |
c848bc853
|
730 |
|
d13733f4a
|
731 732 |
regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK4DVS2, buck_init); |
c848bc853
|
733 |
|
9767ec7fe
|
734 735 736 |
for (i = 0; i < 8; i++) { if (s5m8767->buck2_gpiodvs) { s5m8767->buck2_vol[i] = |
5b5e977ce
|
737 |
s5m8767_convert_voltage_to_sel( |
9767ec7fe
|
738 |
&buck_voltage_val2, |
854f73ecb
|
739 |
pdata->buck2_voltage[i]); |
9767ec7fe
|
740 741 742 743 |
} if (s5m8767->buck3_gpiodvs) { s5m8767->buck3_vol[i] = |
5b5e977ce
|
744 |
s5m8767_convert_voltage_to_sel( |
9767ec7fe
|
745 |
&buck_voltage_val2, |
854f73ecb
|
746 |
pdata->buck3_voltage[i]); |
9767ec7fe
|
747 748 749 750 |
} if (s5m8767->buck4_gpiodvs) { s5m8767->buck4_vol[i] = |
5b5e977ce
|
751 |
s5m8767_convert_voltage_to_sel( |
9767ec7fe
|
752 |
&buck_voltage_val2, |
854f73ecb
|
753 |
pdata->buck4_voltage[i]); |
9767ec7fe
|
754 755 |
} } |
76c854d1d
|
756 757 758 759 760 761 762 763 764 765 |
if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) { if (!gpio_is_valid(pdata->buck_gpios[0]) || !gpio_is_valid(pdata->buck_gpios[1]) || !gpio_is_valid(pdata->buck_gpios[2])) { dev_err(&pdev->dev, "GPIO NOT VALID "); return -EINVAL; } |
5febb3c9d
|
766 767 768 769 770 771 772 773 774 775 776 777 778 779 |
ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[0], "S5M8767 SET1"); if (ret) return ret; ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[1], "S5M8767 SET2"); if (ret) return ret; ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[2], "S5M8767 SET3"); if (ret) return ret; |
c848bc853
|
780 781 782 783 784 785 786 787 788 |
/* SET1 GPIO */ gpio_direction_output(pdata->buck_gpios[0], (s5m8767->buck_gpioindex >> 2) & 0x1); /* SET2 GPIO */ gpio_direction_output(pdata->buck_gpios[1], (s5m8767->buck_gpioindex >> 1) & 0x1); /* SET3 GPIO */ gpio_direction_output(pdata->buck_gpios[2], (s5m8767->buck_gpioindex >> 0) & 0x1); |
9767ec7fe
|
789 |
} |
5febb3c9d
|
790 791 792 |
ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[0], "S5M8767 DS2"); if (ret) return ret; |
c848bc853
|
793 |
|
5febb3c9d
|
794 795 796 |
ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[1], "S5M8767 DS3"); if (ret) return ret; |
c848bc853
|
797 |
|
5febb3c9d
|
798 799 800 |
ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[2], "S5M8767 DS4"); if (ret) return ret; |
c848bc853
|
801 802 803 804 805 806 807 808 809 810 |
/* DS2 GPIO */ gpio_direction_output(pdata->buck_ds[0], 0x0); /* DS3 GPIO */ gpio_direction_output(pdata->buck_ds[1], 0x0); /* DS4 GPIO */ gpio_direction_output(pdata->buck_ds[2], 0x0); if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) { |
d13733f4a
|
811 812 813 814 815 816 817 818 819 |
regmap_update_bits(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK2CTRL, 1 << 1, (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1)); regmap_update_bits(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK3CTRL, 1 << 1, (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1)); regmap_update_bits(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK4CTRL, 1 << 1, (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1)); |
c848bc853
|
820 |
} |
9767ec7fe
|
821 822 823 824 |
/* Initialize GPIO DVS registers */ for (i = 0; i < 8; i++) { if (s5m8767->buck2_gpiodvs) { |
d13733f4a
|
825 826 827 |
regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK2DVS1 + i, s5m8767->buck2_vol[i]); |
9767ec7fe
|
828 829 830 |
} if (s5m8767->buck3_gpiodvs) { |
d13733f4a
|
831 832 833 |
regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK3DVS1 + i, s5m8767->buck3_vol[i]); |
9767ec7fe
|
834 835 836 |
} if (s5m8767->buck4_gpiodvs) { |
d13733f4a
|
837 838 839 |
regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK4DVS1 + i, s5m8767->buck4_vol[i]); |
9767ec7fe
|
840 841 |
} } |
9767ec7fe
|
842 843 |
if (s5m8767->buck2_ramp) |
d13733f4a
|
844 845 |
regmap_update_bits(s5m8767->iodev->regmap_pmic, S5M8767_REG_DVSRAMP, 0x08, 0x08); |
9767ec7fe
|
846 847 |
if (s5m8767->buck3_ramp) |
d13733f4a
|
848 849 |
regmap_update_bits(s5m8767->iodev->regmap_pmic, S5M8767_REG_DVSRAMP, 0x04, 0x04); |
9767ec7fe
|
850 851 |
if (s5m8767->buck4_ramp) |
d13733f4a
|
852 853 |
regmap_update_bits(s5m8767->iodev->regmap_pmic, S5M8767_REG_DVSRAMP, 0x02, 0x02); |
9767ec7fe
|
854 855 856 |
if (s5m8767->buck2_ramp || s5m8767->buck3_ramp || s5m8767->buck4_ramp) { |
f37ff6b6a
|
857 |
unsigned int val; |
9767ec7fe
|
858 |
switch (s5m8767->ramp_delay) { |
1af142c6f
|
859 |
case 5: |
f37ff6b6a
|
860 |
val = S5M8767_DVS_BUCK_RAMP_5; |
1af142c6f
|
861 862 |
break; case 10: |
f37ff6b6a
|
863 |
val = S5M8767_DVS_BUCK_RAMP_10; |
047ec220a
|
864 |
break; |
9767ec7fe
|
865 |
case 25: |
f37ff6b6a
|
866 |
val = S5M8767_DVS_BUCK_RAMP_25; |
047ec220a
|
867 |
break; |
9767ec7fe
|
868 |
case 50: |
f37ff6b6a
|
869 |
val = S5M8767_DVS_BUCK_RAMP_50; |
047ec220a
|
870 |
break; |
9767ec7fe
|
871 |
case 100: |
f37ff6b6a
|
872 |
val = S5M8767_DVS_BUCK_RAMP_100; |
047ec220a
|
873 |
break; |
9767ec7fe
|
874 |
default: |
f37ff6b6a
|
875 |
val = S5M8767_DVS_BUCK_RAMP_10; |
9767ec7fe
|
876 |
} |
d13733f4a
|
877 878 879 880 |
regmap_update_bits(s5m8767->iodev->regmap_pmic, S5M8767_REG_DVSRAMP, S5M8767_DVS_BUCK_RAMP_MASK, val << S5M8767_DVS_BUCK_RAMP_SHIFT); |
9767ec7fe
|
881 882 883 |
} for (i = 0; i < pdata->num_regulators; i++) { |
63063bfbf
|
884 |
const struct sec_voltage_desc *desc; |
9767ec7fe
|
885 |
int id = pdata->regulators[i].id; |
9c4c60554
|
886 |
int enable_reg, enable_val; |
e80fb721c
|
887 |
struct regulator_dev *rdev; |
9767ec7fe
|
888 889 |
desc = reg_voltage_map[id]; |
e2eb169b1
|
890 |
if (desc) { |
9767ec7fe
|
891 892 |
regulators[id].n_voltages = (desc->max - desc->min) / desc->step + 1; |
e2eb169b1
|
893 894 |
regulators[id].min_uV = desc->min; regulators[id].uV_step = desc->step; |
31a932e10
|
895 896 897 898 899 900 |
regulators[id].vsel_reg = s5m8767_get_vsel_reg(id, s5m8767); if (id < S5M8767_BUCK1) regulators[id].vsel_mask = 0x3f; else regulators[id].vsel_mask = 0xff; |
9c4c60554
|
901 |
|
e07ff9434
|
902 |
ret = s5m8767_get_register(s5m8767, id, &enable_reg, |
9c4c60554
|
903 |
&enable_val); |
e07ff9434
|
904 905 906 907 908 |
if (ret) { dev_err(s5m8767->dev, "error reading registers "); return ret; } |
9c4c60554
|
909 910 911 |
regulators[id].enable_reg = enable_reg; regulators[id].enable_mask = S5M8767_ENCTRL_MASK; regulators[id].enable_val = enable_val; |
e2eb169b1
|
912 |
} |
9767ec7fe
|
913 |
|
c172708d3
|
914 915 916 |
config.dev = s5m8767->dev; config.init_data = pdata->regulators[i].initdata; config.driver_data = s5m8767; |
3e1e4a5f3
|
917 |
config.regmap = iodev->regmap_pmic; |
26aec009f
|
918 |
config.of_node = pdata->regulators[i].reg_node; |
9ae5cc75c
|
919 |
config.ena_gpiod = NULL; |
1f5163fcf
|
920 921 |
if (pdata->regulators[i].ext_control_gpiod) { /* Assigns config.ena_gpiod */ |
ee1e0994a
|
922 923 |
s5m8767_regulator_config_ext_control(s5m8767, &pdata->regulators[i], &config); |
c172708d3
|
924 |
|
1f5163fcf
|
925 926 927 928 929 930 |
/* * Hand the GPIO descriptor management over to the * regulator core, remove it from devres management. */ devm_gpiod_unhinge(s5m8767->dev, config.ena_gpiod); } |
e80fb721c
|
931 |
rdev = devm_regulator_register(&pdev->dev, ®ulators[id], |
f0db475de
|
932 |
&config); |
e80fb721c
|
933 934 |
if (IS_ERR(rdev)) { ret = PTR_ERR(rdev); |
9767ec7fe
|
935 936 937 |
dev_err(s5m8767->dev, "regulator init failed for %d ", id); |
f0db475de
|
938 |
return ret; |
9767ec7fe
|
939 |
} |
ee1e0994a
|
940 |
|
9ae5cc75c
|
941 |
if (pdata->regulators[i].ext_control_gpiod) { |
e80fb721c
|
942 |
ret = s5m8767_enable_ext_control(s5m8767, rdev); |
ee1e0994a
|
943 944 945 946 |
if (ret < 0) { dev_err(s5m8767->dev, "failed to enable gpio control over %s: %d ", |
e80fb721c
|
947 |
rdev->desc->name, ret); |
ee1e0994a
|
948 949 950 |
return ret; } } |
9767ec7fe
|
951 952 953 |
} return 0; |
9767ec7fe
|
954 955 956 957 958 959 960 961 962 963 964 |
} static const struct platform_device_id s5m8767_pmic_id[] = { { "s5m8767-pmic", 0}, { }, }; MODULE_DEVICE_TABLE(platform, s5m8767_pmic_id); static struct platform_driver s5m8767_pmic_driver = { .driver = { .name = "s5m8767-pmic", |
9767ec7fe
|
965 966 |
}, .probe = s5m8767_pmic_probe, |
9767ec7fe
|
967 968 |
.id_table = s5m8767_pmic_id, }; |
8d23b0b8f
|
969 |
module_platform_driver(s5m8767_pmic_driver); |
9767ec7fe
|
970 971 972 |
/* Module information */ MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); |
fc2b10d13
|
973 |
MODULE_DESCRIPTION("Samsung S5M8767 Regulator Driver"); |
9767ec7fe
|
974 |
MODULE_LICENSE("GPL"); |