From d46c22b3fdb58623f1bf372d028313a5d3e7b79b Mon Sep 17 00:00:00 2001 From: Patrick Delaunay Date: Mon, 4 Feb 2019 11:26:16 +0100 Subject: power: stpmu1: rename files to stpmic1 Prepare file modification for kernel alignment and rename driver to stpmic1. Signed-off-by: Patrick Delaunay Reviewed-by: Lukasz Majewski --- drivers/power/pmic/Makefile | 2 +- drivers/power/pmic/stpmic1.c | 95 ++++++ drivers/power/pmic/stpmu1.c | 95 ------ drivers/power/regulator/Makefile | 2 +- drivers/power/regulator/stpmic1.c | 672 ++++++++++++++++++++++++++++++++++++++ drivers/power/regulator/stpmu1.c | 672 -------------------------------------- 6 files changed, 769 insertions(+), 769 deletions(-) create mode 100644 drivers/power/pmic/stpmic1.c delete mode 100644 drivers/power/pmic/stpmu1.c create mode 100644 drivers/power/regulator/stpmic1.c delete mode 100644 drivers/power/regulator/stpmu1.c (limited to 'drivers') diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index 637352a..147ac76 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -23,7 +23,7 @@ obj-$(CONFIG_DM_PMIC_TPS65910) += pmic_tps65910_dm.o obj-$(CONFIG_$(SPL_)PMIC_PALMAS) += palmas.o obj-$(CONFIG_$(SPL_)PMIC_LP873X) += lp873x.o obj-$(CONFIG_$(SPL_)PMIC_LP87565) += lp87565.o -obj-$(CONFIG_PMIC_STPMU1) += stpmu1.o +obj-$(CONFIG_PMIC_STPMU1) += stpmic1.o obj-$(CONFIG_POWER_LTC3676) += pmic_ltc3676.o obj-$(CONFIG_POWER_MAX77696) += pmic_max77696.o diff --git a/drivers/power/pmic/stpmic1.c b/drivers/power/pmic/stpmic1.c new file mode 100644 index 0000000..157ce8b --- /dev/null +++ b/drivers/power/pmic/stpmic1.c @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause +/* + * Copyright (C) 2018, STMicroelectronics - All Rights Reserved + */ + +#include +#include +#include +#include +#include +#include + +#define STMPU1_NUM_OF_REGS 0x100 + +#ifndef CONFIG_SPL_BUILD +static const struct pmic_child_info stpmu1_children_info[] = { + { .prefix = "ldo", .driver = "stpmu1_ldo" }, + { .prefix = "buck", .driver = "stpmu1_buck" }, + { .prefix = "vref_ddr", .driver = "stpmu1_vref_ddr" }, + { .prefix = "pwr_sw", .driver = "stpmu1_pwr_sw" }, + { .prefix = "boost", .driver = "stpmu1_boost" }, + { }, +}; +#endif /* CONFIG_SPL_BUILD */ + +static int stpmu1_reg_count(struct udevice *dev) +{ + return STMPU1_NUM_OF_REGS; +} + +static int stpmu1_write(struct udevice *dev, uint reg, const uint8_t *buff, + int len) +{ + int ret; + + ret = dm_i2c_write(dev, reg, buff, len); + if (ret) + dev_err(dev, "%s: failed to write register %#x :%d", + __func__, reg, ret); + + return ret; +} + +static int stpmu1_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + int ret; + + ret = dm_i2c_read(dev, reg, buff, len); + if (ret) + dev_err(dev, "%s: failed to read register %#x : %d", + __func__, reg, ret); + + return ret; +} + +static int stpmu1_bind(struct udevice *dev) +{ +#ifndef CONFIG_SPL_BUILD + ofnode regulators_node; + int children; + + regulators_node = dev_read_subnode(dev, "regulators"); + if (!ofnode_valid(regulators_node)) { + dev_dbg(dev, "regulators subnode not found!\n"); + return -ENXIO; + } + dev_dbg(dev, "found regulators subnode\n"); + + children = pmic_bind_children(dev, regulators_node, + stpmu1_children_info); + if (!children) + dev_dbg(dev, "no child found\n"); +#endif /* CONFIG_SPL_BUILD */ + + return 0; +} + +static struct dm_pmic_ops stpmu1_ops = { + .reg_count = stpmu1_reg_count, + .read = stpmu1_read, + .write = stpmu1_write, +}; + +static const struct udevice_id stpmu1_ids[] = { + { .compatible = "st,stpmu1" }, + { } +}; + +U_BOOT_DRIVER(pmic_stpmu1) = { + .name = "stpmu1_pmic", + .id = UCLASS_PMIC, + .of_match = stpmu1_ids, + .bind = stpmu1_bind, + .ops = &stpmu1_ops, +}; diff --git a/drivers/power/pmic/stpmu1.c b/drivers/power/pmic/stpmu1.c deleted file mode 100644 index 47af012..0000000 --- a/drivers/power/pmic/stpmu1.c +++ /dev/null @@ -1,95 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause -/* - * Copyright (C) 2018, STMicroelectronics - All Rights Reserved - */ - -#include -#include -#include -#include -#include -#include - -#define STMPU1_NUM_OF_REGS 0x100 - -#ifndef CONFIG_SPL_BUILD -static const struct pmic_child_info stpmu1_children_info[] = { - { .prefix = "ldo", .driver = "stpmu1_ldo" }, - { .prefix = "buck", .driver = "stpmu1_buck" }, - { .prefix = "vref_ddr", .driver = "stpmu1_vref_ddr" }, - { .prefix = "pwr_sw", .driver = "stpmu1_pwr_sw" }, - { .prefix = "boost", .driver = "stpmu1_boost" }, - { }, -}; -#endif /* CONFIG_SPL_BUILD */ - -static int stpmu1_reg_count(struct udevice *dev) -{ - return STMPU1_NUM_OF_REGS; -} - -static int stpmu1_write(struct udevice *dev, uint reg, const uint8_t *buff, - int len) -{ - int ret; - - ret = dm_i2c_write(dev, reg, buff, len); - if (ret) - dev_err(dev, "%s: failed to write register %#x :%d", - __func__, reg, ret); - - return ret; -} - -static int stpmu1_read(struct udevice *dev, uint reg, uint8_t *buff, int len) -{ - int ret; - - ret = dm_i2c_read(dev, reg, buff, len); - if (ret) - dev_err(dev, "%s: failed to read register %#x : %d", - __func__, reg, ret); - - return ret; -} - -static int stpmu1_bind(struct udevice *dev) -{ -#ifndef CONFIG_SPL_BUILD - ofnode regulators_node; - int children; - - regulators_node = dev_read_subnode(dev, "regulators"); - if (!ofnode_valid(regulators_node)) { - dev_dbg(dev, "regulators subnode not found!\n"); - return -ENXIO; - } - dev_dbg(dev, "found regulators subnode\n"); - - children = pmic_bind_children(dev, regulators_node, - stpmu1_children_info); - if (!children) - dev_dbg(dev, "no child found\n"); -#endif /* CONFIG_SPL_BUILD */ - - return 0; -} - -static struct dm_pmic_ops stpmu1_ops = { - .reg_count = stpmu1_reg_count, - .read = stpmu1_read, - .write = stpmu1_write, -}; - -static const struct udevice_id stpmu1_ids[] = { - { .compatible = "st,stpmu1" }, - { } -}; - -U_BOOT_DRIVER(pmic_stpmu1) = { - .name = "stpmu1_pmic", - .id = UCLASS_PMIC, - .of_match = stpmu1_ids, - .bind = stpmu1_bind, - .ops = &stpmu1_ops, -}; diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile index f617ce7..cfc91e8 100644 --- a/drivers/power/regulator/Makefile +++ b/drivers/power/regulator/Makefile @@ -24,4 +24,4 @@ obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP873X) += lp873x_regulator.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP87565) += lp87565_regulator.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o obj-$(CONFIG_DM_REGULATOR_TPS65910) += tps65910_regulator.o -obj-$(CONFIG_$(SPL_)DM_REGULATOR_STPMU1) += stpmu1.o +obj-$(CONFIG_$(SPL_)DM_REGULATOR_STPMU1) += stpmic1.o diff --git a/drivers/power/regulator/stpmic1.c b/drivers/power/regulator/stpmic1.c new file mode 100644 index 0000000..c62a19a --- /dev/null +++ b/drivers/power/regulator/stpmic1.c @@ -0,0 +1,672 @@ +// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause +/* + * Copyright (C) 2018, STMicroelectronics - All Rights Reserved + * Author: Christophe Kerello + */ + +#include +#include +#include +#include +#include +#include + +struct stpmu1_range { + int min_uv; + int min_sel; + int max_sel; + int step; +}; + +struct stpmu1_output_range { + const struct stpmu1_range *ranges; + int nbranges; +}; + +#define STPMU1_MODE(_id, _val, _name) { \ + .id = _id, \ + .register_value = _val, \ + .name = _name, \ +} + +#define STPMU1_RANGE(_min_uv, _min_sel, _max_sel, _step) { \ + .min_uv = _min_uv, \ + .min_sel = _min_sel, \ + .max_sel = _max_sel, \ + .step = _step, \ +} + +#define STPMU1_OUTPUT_RANGE(_ranges, _nbranges) { \ + .ranges = _ranges, \ + .nbranges = _nbranges, \ +} + +static int stpmu1_output_find_uv(int sel, + const struct stpmu1_output_range *output_range) +{ + const struct stpmu1_range *range; + int i; + + for (i = 0, range = output_range->ranges; + i < output_range->nbranges; i++, range++) { + if (sel >= range->min_sel && sel <= range->max_sel) + return range->min_uv + + (sel - range->min_sel) * range->step; + } + + return -EINVAL; +} + +static int stpmu1_output_find_sel(int uv, + const struct stpmu1_output_range *output_range) +{ + const struct stpmu1_range *range; + int i; + + for (i = 0, range = output_range->ranges; + i < output_range->nbranges; i++, range++) { + if (uv == range->min_uv && !range->step) + return range->min_sel; + + if (uv >= range->min_uv && + uv <= range->min_uv + + (range->max_sel - range->min_sel) * range->step) + return range->min_sel + + (uv - range->min_uv) / range->step; + } + + return -EINVAL; +} + +/* + * BUCK regulators + */ + +static const struct stpmu1_range buck1_ranges[] = { + STPMU1_RANGE(725000, 0, 4, 0), + STPMU1_RANGE(725000, 5, 36, 25000), + STPMU1_RANGE(1500000, 37, 63, 0), +}; + +static const struct stpmu1_range buck2_ranges[] = { + STPMU1_RANGE(1000000, 0, 17, 0), + STPMU1_RANGE(1050000, 18, 19, 0), + STPMU1_RANGE(1100000, 20, 21, 0), + STPMU1_RANGE(1150000, 22, 23, 0), + STPMU1_RANGE(1200000, 24, 25, 0), + STPMU1_RANGE(1250000, 26, 27, 0), + STPMU1_RANGE(1300000, 28, 29, 0), + STPMU1_RANGE(1350000, 30, 31, 0), + STPMU1_RANGE(1400000, 32, 33, 0), + STPMU1_RANGE(1450000, 34, 35, 0), + STPMU1_RANGE(1500000, 36, 63, 0), +}; + +static const struct stpmu1_range buck3_ranges[] = { + STPMU1_RANGE(1000000, 0, 19, 0), + STPMU1_RANGE(1100000, 20, 23, 0), + STPMU1_RANGE(1200000, 24, 27, 0), + STPMU1_RANGE(1300000, 28, 31, 0), + STPMU1_RANGE(1400000, 32, 35, 0), + STPMU1_RANGE(1500000, 36, 55, 100000), + STPMU1_RANGE(3400000, 56, 63, 0), +}; + +static const struct stpmu1_range buck4_ranges[] = { + STPMU1_RANGE(600000, 0, 27, 25000), + STPMU1_RANGE(1300000, 28, 29, 0), + STPMU1_RANGE(1350000, 30, 31, 0), + STPMU1_RANGE(1400000, 32, 33, 0), + STPMU1_RANGE(1450000, 34, 35, 0), + STPMU1_RANGE(1500000, 36, 60, 100000), + STPMU1_RANGE(3900000, 61, 63, 0), +}; + +/* BUCK: 1,2,3,4 - voltage ranges */ +static const struct stpmu1_output_range buck_voltage_range[] = { + STPMU1_OUTPUT_RANGE(buck1_ranges, ARRAY_SIZE(buck1_ranges)), + STPMU1_OUTPUT_RANGE(buck2_ranges, ARRAY_SIZE(buck2_ranges)), + STPMU1_OUTPUT_RANGE(buck3_ranges, ARRAY_SIZE(buck3_ranges)), + STPMU1_OUTPUT_RANGE(buck4_ranges, ARRAY_SIZE(buck4_ranges)), +}; + +/* BUCK modes */ +static const struct dm_regulator_mode buck_modes[] = { + STPMU1_MODE(STPMU1_BUCK_MODE_HP, STPMU1_BUCK_MODE_HP, "HP"), + STPMU1_MODE(STPMU1_BUCK_MODE_LP, STPMU1_BUCK_MODE_LP, "LP"), +}; + +static int stpmu1_buck_get_uv(struct udevice *dev, int buck) +{ + int sel; + + sel = pmic_reg_read(dev, STPMU1_BUCKX_CTRL_REG(buck)); + if (sel < 0) + return sel; + + sel &= STPMU1_BUCK_OUTPUT_MASK; + sel >>= STPMU1_BUCK_OUTPUT_SHIFT; + + return stpmu1_output_find_uv(sel, &buck_voltage_range[buck]); +} + +static int stpmu1_buck_get_value(struct udevice *dev) +{ + return stpmu1_buck_get_uv(dev->parent, dev->driver_data - 1); +} + +static int stpmu1_buck_set_value(struct udevice *dev, int uv) +{ + int sel, buck = dev->driver_data - 1; + + sel = stpmu1_output_find_sel(uv, &buck_voltage_range[buck]); + if (sel < 0) + return sel; + + return pmic_clrsetbits(dev->parent, + STPMU1_BUCKX_CTRL_REG(buck), + STPMU1_BUCK_OUTPUT_MASK, + sel << STPMU1_BUCK_OUTPUT_SHIFT); +} + +static int stpmu1_buck_get_enable(struct udevice *dev) +{ + int ret; + + ret = pmic_reg_read(dev->parent, + STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1)); + if (ret < 0) + return false; + + return ret & STPMU1_BUCK_EN ? true : false; +} + +static int stpmu1_buck_set_enable(struct udevice *dev, bool enable) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS : + STPMU1_DEFAULT_STOP_DELAY_MS; + int ret, uv; + + /* if regulator is already in the wanted state, nothing to do */ + if (stpmu1_buck_get_enable(dev) == enable) + return 0; + + if (enable) { + uc_pdata = dev_get_uclass_platdata(dev); + uv = stpmu1_buck_get_value(dev); + if ((uv < uc_pdata->min_uV) || (uv > uc_pdata->max_uV)) + stpmu1_buck_set_value(dev, uc_pdata->min_uV); + } + + ret = pmic_clrsetbits(dev->parent, + STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1), + STPMU1_BUCK_EN, enable ? STPMU1_BUCK_EN : 0); + mdelay(delay); + + return ret; +} + +static int stpmu1_buck_get_mode(struct udevice *dev) +{ + int ret; + + ret = pmic_reg_read(dev->parent, + STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1)); + if (ret < 0) + return ret; + + return ret & STPMU1_BUCK_MODE ? STPMU1_BUCK_MODE_LP : + STPMU1_BUCK_MODE_HP; +} + +static int stpmu1_buck_set_mode(struct udevice *dev, int mode) +{ + return pmic_clrsetbits(dev->parent, + STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1), + STPMU1_BUCK_MODE, + mode ? STPMU1_BUCK_MODE : 0); +} + +static int stpmu1_buck_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + + if (!dev->driver_data || dev->driver_data > STPMU1_MAX_BUCK) + return -EINVAL; + + uc_pdata = dev_get_uclass_platdata(dev); + + uc_pdata->type = REGULATOR_TYPE_BUCK; + uc_pdata->mode = (struct dm_regulator_mode *)buck_modes; + uc_pdata->mode_count = ARRAY_SIZE(buck_modes); + + return 0; +} + +static const struct dm_regulator_ops stpmu1_buck_ops = { + .get_value = stpmu1_buck_get_value, + .set_value = stpmu1_buck_set_value, + .get_enable = stpmu1_buck_get_enable, + .set_enable = stpmu1_buck_set_enable, + .get_mode = stpmu1_buck_get_mode, + .set_mode = stpmu1_buck_set_mode, +}; + +U_BOOT_DRIVER(stpmu1_buck) = { + .name = "stpmu1_buck", + .id = UCLASS_REGULATOR, + .ops = &stpmu1_buck_ops, + .probe = stpmu1_buck_probe, +}; + +/* + * LDO regulators + */ + +static const struct stpmu1_range ldo12_ranges[] = { + STPMU1_RANGE(1700000, 0, 7, 0), + STPMU1_RANGE(1700000, 8, 24, 100000), + STPMU1_RANGE(3300000, 25, 31, 0), +}; + +static const struct stpmu1_range ldo3_ranges[] = { + STPMU1_RANGE(1700000, 0, 7, 0), + STPMU1_RANGE(1700000, 8, 24, 100000), + STPMU1_RANGE(3300000, 25, 30, 0), + /* Sel 31 is special case when LDO3 is in mode sync_source (BUCK2/2) */ +}; + +static const struct stpmu1_range ldo5_ranges[] = { + STPMU1_RANGE(1700000, 0, 7, 0), + STPMU1_RANGE(1700000, 8, 30, 100000), + STPMU1_RANGE(3900000, 31, 31, 0), +}; + +static const struct stpmu1_range ldo6_ranges[] = { + STPMU1_RANGE(900000, 0, 24, 100000), + STPMU1_RANGE(3300000, 25, 31, 0), +}; + +/* LDO: 1,2,3,4,5,6 - voltage ranges */ +static const struct stpmu1_output_range ldo_voltage_range[] = { + STPMU1_OUTPUT_RANGE(ldo12_ranges, ARRAY_SIZE(ldo12_ranges)), + STPMU1_OUTPUT_RANGE(ldo12_ranges, ARRAY_SIZE(ldo12_ranges)), + STPMU1_OUTPUT_RANGE(ldo3_ranges, ARRAY_SIZE(ldo3_ranges)), + STPMU1_OUTPUT_RANGE(NULL, 0), + STPMU1_OUTPUT_RANGE(ldo5_ranges, ARRAY_SIZE(ldo5_ranges)), + STPMU1_OUTPUT_RANGE(ldo6_ranges, ARRAY_SIZE(ldo6_ranges)), +}; + +/* LDO modes */ +static const struct dm_regulator_mode ldo_modes[] = { + STPMU1_MODE(STPMU1_LDO_MODE_NORMAL, + STPMU1_LDO_MODE_NORMAL, "NORMAL"), + STPMU1_MODE(STPMU1_LDO_MODE_BYPASS, + STPMU1_LDO_MODE_BYPASS, "BYPASS"), + STPMU1_MODE(STPMU1_LDO_MODE_SINK_SOURCE, + STPMU1_LDO_MODE_SINK_SOURCE, "SINK SOURCE"), +}; + +static int stpmu1_ldo_get_value(struct udevice *dev) +{ + int sel, ldo = dev->driver_data - 1; + + sel = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo)); + if (sel < 0) + return sel; + + /* ldo4 => 3,3V */ + if (ldo == STPMU1_LDO4) + return STPMU1_LDO4_UV; + + sel &= STPMU1_LDO12356_OUTPUT_MASK; + sel >>= STPMU1_LDO12356_OUTPUT_SHIFT; + + /* ldo3, sel = 31 => BUCK2/2 */ + if (ldo == STPMU1_LDO3 && sel == STPMU1_LDO3_DDR_SEL) + return stpmu1_buck_get_uv(dev->parent, STPMU1_BUCK2) / 2; + + return stpmu1_output_find_uv(sel, &ldo_voltage_range[ldo]); +} + +static int stpmu1_ldo_set_value(struct udevice *dev, int uv) +{ + int sel, ldo = dev->driver_data - 1; + + /* ldo4 => not possible */ + if (ldo == STPMU1_LDO4) + return -EINVAL; + + sel = stpmu1_output_find_sel(uv, &ldo_voltage_range[ldo]); + if (sel < 0) + return sel; + + return pmic_clrsetbits(dev->parent, + STPMU1_LDOX_CTRL_REG(ldo), + STPMU1_LDO12356_OUTPUT_MASK, + sel << STPMU1_LDO12356_OUTPUT_SHIFT); +} + +static int stpmu1_ldo_get_enable(struct udevice *dev) +{ + int ret; + + ret = pmic_reg_read(dev->parent, + STPMU1_LDOX_CTRL_REG(dev->driver_data - 1)); + if (ret < 0) + return false; + + return ret & STPMU1_LDO_EN ? true : false; +} + +static int stpmu1_ldo_set_enable(struct udevice *dev, bool enable) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS : + STPMU1_DEFAULT_STOP_DELAY_MS; + int ret, uv; + + /* if regulator is already in the wanted state, nothing to do */ + if (stpmu1_ldo_get_enable(dev) == enable) + return 0; + + if (enable) { + uc_pdata = dev_get_uclass_platdata(dev); + uv = stpmu1_ldo_get_value(dev); + if ((uv < uc_pdata->min_uV) || (uv > uc_pdata->max_uV)) + stpmu1_ldo_set_value(dev, uc_pdata->min_uV); + } + + ret = pmic_clrsetbits(dev->parent, + STPMU1_LDOX_CTRL_REG(dev->driver_data - 1), + STPMU1_LDO_EN, enable ? STPMU1_LDO_EN : 0); + mdelay(delay); + + return ret; +} + +static int stpmu1_ldo_get_mode(struct udevice *dev) +{ + int ret, ldo = dev->driver_data - 1; + + if (ldo != STPMU1_LDO3) + return -EINVAL; + + ret = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo)); + if (ret < 0) + return ret; + + if (ret & STPMU1_LDO3_MODE) + return STPMU1_LDO_MODE_BYPASS; + + ret &= STPMU1_LDO12356_OUTPUT_MASK; + ret >>= STPMU1_LDO12356_OUTPUT_SHIFT; + + return ret == STPMU1_LDO3_DDR_SEL ? STPMU1_LDO_MODE_SINK_SOURCE : + STPMU1_LDO_MODE_NORMAL; +} + +static int stpmu1_ldo_set_mode(struct udevice *dev, int mode) +{ + int ret, ldo = dev->driver_data - 1; + + if (ldo != STPMU1_LDO3) + return -EINVAL; + + ret = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo)); + if (ret < 0) + return ret; + + switch (mode) { + case STPMU1_LDO_MODE_SINK_SOURCE: + ret &= ~STPMU1_LDO12356_OUTPUT_MASK; + ret |= STPMU1_LDO3_DDR_SEL << STPMU1_LDO12356_OUTPUT_SHIFT; + case STPMU1_LDO_MODE_NORMAL: + ret &= ~STPMU1_LDO3_MODE; + break; + case STPMU1_LDO_MODE_BYPASS: + ret |= STPMU1_LDO3_MODE; + break; + } + + return pmic_reg_write(dev->parent, STPMU1_LDOX_CTRL_REG(ldo), ret); +} + +static int stpmu1_ldo_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + + if (!dev->driver_data || dev->driver_data > STPMU1_MAX_LDO) + return -EINVAL; + + uc_pdata = dev_get_uclass_platdata(dev); + + uc_pdata->type = REGULATOR_TYPE_LDO; + if (dev->driver_data - 1 == STPMU1_LDO3) { + uc_pdata->mode = (struct dm_regulator_mode *)ldo_modes; + uc_pdata->mode_count = ARRAY_SIZE(ldo_modes); + } else { + uc_pdata->mode_count = 0; + } + + return 0; +} + +static const struct dm_regulator_ops stpmu1_ldo_ops = { + .get_value = stpmu1_ldo_get_value, + .set_value = stpmu1_ldo_set_value, + .get_enable = stpmu1_ldo_get_enable, + .set_enable = stpmu1_ldo_set_enable, + .get_mode = stpmu1_ldo_get_mode, + .set_mode = stpmu1_ldo_set_mode, +}; + +U_BOOT_DRIVER(stpmu1_ldo) = { + .name = "stpmu1_ldo", + .id = UCLASS_REGULATOR, + .ops = &stpmu1_ldo_ops, + .probe = stpmu1_ldo_probe, +}; + +/* + * VREF DDR regulator + */ + +static int stpmu1_vref_ddr_get_value(struct udevice *dev) +{ + /* BUCK2/2 */ + return stpmu1_buck_get_uv(dev->parent, STPMU1_BUCK2) / 2; +} + +static int stpmu1_vref_ddr_get_enable(struct udevice *dev) +{ + int ret; + + ret = pmic_reg_read(dev->parent, STPMU1_VREF_CTRL_REG); + if (ret < 0) + return false; + + return ret & STPMU1_VREF_EN ? true : false; +} + +static int stpmu1_vref_ddr_set_enable(struct udevice *dev, bool enable) +{ + int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS : + STPMU1_DEFAULT_STOP_DELAY_MS; + int ret; + + /* if regulator is already in the wanted state, nothing to do */ + if (stpmu1_vref_ddr_get_enable(dev) == enable) + return 0; + + ret = pmic_clrsetbits(dev->parent, STPMU1_VREF_CTRL_REG, + STPMU1_VREF_EN, enable ? STPMU1_VREF_EN : 0); + mdelay(delay); + + return ret; +} + +static int stpmu1_vref_ddr_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + + uc_pdata = dev_get_uclass_platdata(dev); + + uc_pdata->type = REGULATOR_TYPE_FIXED; + uc_pdata->mode_count = 0; + + return 0; +} + +static const struct dm_regulator_ops stpmu1_vref_ddr_ops = { + .get_value = stpmu1_vref_ddr_get_value, + .get_enable = stpmu1_vref_ddr_get_enable, + .set_enable = stpmu1_vref_ddr_set_enable, +}; + +U_BOOT_DRIVER(stpmu1_vref_ddr) = { + .name = "stpmu1_vref_ddr", + .id = UCLASS_REGULATOR, + .ops = &stpmu1_vref_ddr_ops, + .probe = stpmu1_vref_ddr_probe, +}; + +/* + * BOOST regulator + */ + +static int stpmu1_boost_get_enable(struct udevice *dev) +{ + int ret; + + ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG); + if (ret < 0) + return false; + + return ret & STPMU1_USB_BOOST_EN ? true : false; +} + +static int stpmu1_boost_set_enable(struct udevice *dev, bool enable) +{ + int ret; + + ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG); + if (ret < 0) + return ret; + + if (!enable && ret & STPMU1_USB_PWR_SW_EN) + return -EINVAL; + + /* if regulator is already in the wanted state, nothing to do */ + if (!!(ret & STPMU1_USB_BOOST_EN) == enable) + return 0; + + ret = pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG, + STPMU1_USB_BOOST_EN, + enable ? STPMU1_USB_BOOST_EN : 0); + if (enable) + mdelay(STPMU1_USB_BOOST_START_UP_DELAY_MS); + + return ret; +} + +static int stpmu1_boost_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + + uc_pdata = dev_get_uclass_platdata(dev); + + uc_pdata->type = REGULATOR_TYPE_FIXED; + uc_pdata->mode_count = 0; + + return 0; +} + +static const struct dm_regulator_ops stpmu1_boost_ops = { + .get_enable = stpmu1_boost_get_enable, + .set_enable = stpmu1_boost_set_enable, +}; + +U_BOOT_DRIVER(stpmu1_boost) = { + .name = "stpmu1_boost", + .id = UCLASS_REGULATOR, + .ops = &stpmu1_boost_ops, + .probe = stpmu1_boost_probe, +}; + +/* + * USB power switch + */ + +static int stpmu1_pwr_sw_get_enable(struct udevice *dev) +{ + uint mask = 1 << dev->driver_data; + int ret; + + ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG); + if (ret < 0) + return false; + + return ret & mask ? true : false; +} + +static int stpmu1_pwr_sw_set_enable(struct udevice *dev, bool enable) +{ + uint mask = 1 << dev->driver_data; + int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS : + STPMU1_DEFAULT_STOP_DELAY_MS; + int ret; + + ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG); + if (ret < 0) + return ret; + + /* if regulator is already in the wanted state, nothing to do */ + if (!!(ret & mask) == enable) + return 0; + + /* Boost management */ + if (enable && !(ret & STPMU1_USB_BOOST_EN)) { + pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG, + STPMU1_USB_BOOST_EN, STPMU1_USB_BOOST_EN); + mdelay(STPMU1_USB_BOOST_START_UP_DELAY_MS); + } else if (!enable && ret & STPMU1_USB_BOOST_EN && + (ret & STPMU1_USB_PWR_SW_EN) != STPMU1_USB_PWR_SW_EN) { + pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG, + STPMU1_USB_BOOST_EN, 0); + } + + ret = pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG, + mask, enable ? mask : 0); + mdelay(delay); + + return ret; +} + +static int stpmu1_pwr_sw_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + + if (!dev->driver_data || dev->driver_data > STPMU1_MAX_PWR_SW) + return -EINVAL; + + uc_pdata = dev_get_uclass_platdata(dev); + + uc_pdata->type = REGULATOR_TYPE_FIXED; + uc_pdata->mode_count = 0; + + return 0; +} + +static const struct dm_regulator_ops stpmu1_pwr_sw_ops = { + .get_enable = stpmu1_pwr_sw_get_enable, + .set_enable = stpmu1_pwr_sw_set_enable, +}; + +U_BOOT_DRIVER(stpmu1_pwr_sw) = { + .name = "stpmu1_pwr_sw", + .id = UCLASS_REGULATOR, + .ops = &stpmu1_pwr_sw_ops, + .probe = stpmu1_pwr_sw_probe, +}; diff --git a/drivers/power/regulator/stpmu1.c b/drivers/power/regulator/stpmu1.c deleted file mode 100644 index 2e64051..0000000 --- a/drivers/power/regulator/stpmu1.c +++ /dev/null @@ -1,672 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause -/* - * Copyright (C) 2018, STMicroelectronics - All Rights Reserved - * Author: Christophe Kerello - */ - -#include -#include -#include -#include -#include -#include - -struct stpmu1_range { - int min_uv; - int min_sel; - int max_sel; - int step; -}; - -struct stpmu1_output_range { - const struct stpmu1_range *ranges; - int nbranges; -}; - -#define STPMU1_MODE(_id, _val, _name) { \ - .id = _id, \ - .register_value = _val, \ - .name = _name, \ -} - -#define STPMU1_RANGE(_min_uv, _min_sel, _max_sel, _step) { \ - .min_uv = _min_uv, \ - .min_sel = _min_sel, \ - .max_sel = _max_sel, \ - .step = _step, \ -} - -#define STPMU1_OUTPUT_RANGE(_ranges, _nbranges) { \ - .ranges = _ranges, \ - .nbranges = _nbranges, \ -} - -static int stpmu1_output_find_uv(int sel, - const struct stpmu1_output_range *output_range) -{ - const struct stpmu1_range *range; - int i; - - for (i = 0, range = output_range->ranges; - i < output_range->nbranges; i++, range++) { - if (sel >= range->min_sel && sel <= range->max_sel) - return range->min_uv + - (sel - range->min_sel) * range->step; - } - - return -EINVAL; -} - -static int stpmu1_output_find_sel(int uv, - const struct stpmu1_output_range *output_range) -{ - const struct stpmu1_range *range; - int i; - - for (i = 0, range = output_range->ranges; - i < output_range->nbranges; i++, range++) { - if (uv == range->min_uv && !range->step) - return range->min_sel; - - if (uv >= range->min_uv && - uv <= range->min_uv + - (range->max_sel - range->min_sel) * range->step) - return range->min_sel + - (uv - range->min_uv) / range->step; - } - - return -EINVAL; -} - -/* - * BUCK regulators - */ - -static const struct stpmu1_range buck1_ranges[] = { - STPMU1_RANGE(725000, 0, 4, 0), - STPMU1_RANGE(725000, 5, 36, 25000), - STPMU1_RANGE(1500000, 37, 63, 0), -}; - -static const struct stpmu1_range buck2_ranges[] = { - STPMU1_RANGE(1000000, 0, 17, 0), - STPMU1_RANGE(1050000, 18, 19, 0), - STPMU1_RANGE(1100000, 20, 21, 0), - STPMU1_RANGE(1150000, 22, 23, 0), - STPMU1_RANGE(1200000, 24, 25, 0), - STPMU1_RANGE(1250000, 26, 27, 0), - STPMU1_RANGE(1300000, 28, 29, 0), - STPMU1_RANGE(1350000, 30, 31, 0), - STPMU1_RANGE(1400000, 32, 33, 0), - STPMU1_RANGE(1450000, 34, 35, 0), - STPMU1_RANGE(1500000, 36, 63, 0), -}; - -static const struct stpmu1_range buck3_ranges[] = { - STPMU1_RANGE(1000000, 0, 19, 0), - STPMU1_RANGE(1100000, 20, 23, 0), - STPMU1_RANGE(1200000, 24, 27, 0), - STPMU1_RANGE(1300000, 28, 31, 0), - STPMU1_RANGE(1400000, 32, 35, 0), - STPMU1_RANGE(1500000, 36, 55, 100000), - STPMU1_RANGE(3400000, 56, 63, 0), -}; - -static const struct stpmu1_range buck4_ranges[] = { - STPMU1_RANGE(600000, 0, 27, 25000), - STPMU1_RANGE(1300000, 28, 29, 0), - STPMU1_RANGE(1350000, 30, 31, 0), - STPMU1_RANGE(1400000, 32, 33, 0), - STPMU1_RANGE(1450000, 34, 35, 0), - STPMU1_RANGE(1500000, 36, 60, 100000), - STPMU1_RANGE(3900000, 61, 63, 0), -}; - -/* BUCK: 1,2,3,4 - voltage ranges */ -static const struct stpmu1_output_range buck_voltage_range[] = { - STPMU1_OUTPUT_RANGE(buck1_ranges, ARRAY_SIZE(buck1_ranges)), - STPMU1_OUTPUT_RANGE(buck2_ranges, ARRAY_SIZE(buck2_ranges)), - STPMU1_OUTPUT_RANGE(buck3_ranges, ARRAY_SIZE(buck3_ranges)), - STPMU1_OUTPUT_RANGE(buck4_ranges, ARRAY_SIZE(buck4_ranges)), -}; - -/* BUCK modes */ -static const struct dm_regulator_mode buck_modes[] = { - STPMU1_MODE(STPMU1_BUCK_MODE_HP, STPMU1_BUCK_MODE_HP, "HP"), - STPMU1_MODE(STPMU1_BUCK_MODE_LP, STPMU1_BUCK_MODE_LP, "LP"), -}; - -static int stpmu1_buck_get_uv(struct udevice *dev, int buck) -{ - int sel; - - sel = pmic_reg_read(dev, STPMU1_BUCKX_CTRL_REG(buck)); - if (sel < 0) - return sel; - - sel &= STPMU1_BUCK_OUTPUT_MASK; - sel >>= STPMU1_BUCK_OUTPUT_SHIFT; - - return stpmu1_output_find_uv(sel, &buck_voltage_range[buck]); -} - -static int stpmu1_buck_get_value(struct udevice *dev) -{ - return stpmu1_buck_get_uv(dev->parent, dev->driver_data - 1); -} - -static int stpmu1_buck_set_value(struct udevice *dev, int uv) -{ - int sel, buck = dev->driver_data - 1; - - sel = stpmu1_output_find_sel(uv, &buck_voltage_range[buck]); - if (sel < 0) - return sel; - - return pmic_clrsetbits(dev->parent, - STPMU1_BUCKX_CTRL_REG(buck), - STPMU1_BUCK_OUTPUT_MASK, - sel << STPMU1_BUCK_OUTPUT_SHIFT); -} - -static int stpmu1_buck_get_enable(struct udevice *dev) -{ - int ret; - - ret = pmic_reg_read(dev->parent, - STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1)); - if (ret < 0) - return false; - - return ret & STPMU1_BUCK_EN ? true : false; -} - -static int stpmu1_buck_set_enable(struct udevice *dev, bool enable) -{ - struct dm_regulator_uclass_platdata *uc_pdata; - int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS : - STPMU1_DEFAULT_STOP_DELAY_MS; - int ret, uv; - - /* if regulator is already in the wanted state, nothing to do */ - if (stpmu1_buck_get_enable(dev) == enable) - return 0; - - if (enable) { - uc_pdata = dev_get_uclass_platdata(dev); - uv = stpmu1_buck_get_value(dev); - if ((uv < uc_pdata->min_uV) || (uv > uc_pdata->max_uV)) - stpmu1_buck_set_value(dev, uc_pdata->min_uV); - } - - ret = pmic_clrsetbits(dev->parent, - STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1), - STPMU1_BUCK_EN, enable ? STPMU1_BUCK_EN : 0); - mdelay(delay); - - return ret; -} - -static int stpmu1_buck_get_mode(struct udevice *dev) -{ - int ret; - - ret = pmic_reg_read(dev->parent, - STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1)); - if (ret < 0) - return ret; - - return ret & STPMU1_BUCK_MODE ? STPMU1_BUCK_MODE_LP : - STPMU1_BUCK_MODE_HP; -} - -static int stpmu1_buck_set_mode(struct udevice *dev, int mode) -{ - return pmic_clrsetbits(dev->parent, - STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1), - STPMU1_BUCK_MODE, - mode ? STPMU1_BUCK_MODE : 0); -} - -static int stpmu1_buck_probe(struct udevice *dev) -{ - struct dm_regulator_uclass_platdata *uc_pdata; - - if (!dev->driver_data || dev->driver_data > STPMU1_MAX_BUCK) - return -EINVAL; - - uc_pdata = dev_get_uclass_platdata(dev); - - uc_pdata->type = REGULATOR_TYPE_BUCK; - uc_pdata->mode = (struct dm_regulator_mode *)buck_modes; - uc_pdata->mode_count = ARRAY_SIZE(buck_modes); - - return 0; -} - -static const struct dm_regulator_ops stpmu1_buck_ops = { - .get_value = stpmu1_buck_get_value, - .set_value = stpmu1_buck_set_value, - .get_enable = stpmu1_buck_get_enable, - .set_enable = stpmu1_buck_set_enable, - .get_mode = stpmu1_buck_get_mode, - .set_mode = stpmu1_buck_set_mode, -}; - -U_BOOT_DRIVER(stpmu1_buck) = { - .name = "stpmu1_buck", - .id = UCLASS_REGULATOR, - .ops = &stpmu1_buck_ops, - .probe = stpmu1_buck_probe, -}; - -/* - * LDO regulators - */ - -static const struct stpmu1_range ldo12_ranges[] = { - STPMU1_RANGE(1700000, 0, 7, 0), - STPMU1_RANGE(1700000, 8, 24, 100000), - STPMU1_RANGE(3300000, 25, 31, 0), -}; - -static const struct stpmu1_range ldo3_ranges[] = { - STPMU1_RANGE(1700000, 0, 7, 0), - STPMU1_RANGE(1700000, 8, 24, 100000), - STPMU1_RANGE(3300000, 25, 30, 0), - /* Sel 31 is special case when LDO3 is in mode sync_source (BUCK2/2) */ -}; - -static const struct stpmu1_range ldo5_ranges[] = { - STPMU1_RANGE(1700000, 0, 7, 0), - STPMU1_RANGE(1700000, 8, 30, 100000), - STPMU1_RANGE(3900000, 31, 31, 0), -}; - -static const struct stpmu1_range ldo6_ranges[] = { - STPMU1_RANGE(900000, 0, 24, 100000), - STPMU1_RANGE(3300000, 25, 31, 0), -}; - -/* LDO: 1,2,3,4,5,6 - voltage ranges */ -static const struct stpmu1_output_range ldo_voltage_range[] = { - STPMU1_OUTPUT_RANGE(ldo12_ranges, ARRAY_SIZE(ldo12_ranges)), - STPMU1_OUTPUT_RANGE(ldo12_ranges, ARRAY_SIZE(ldo12_ranges)), - STPMU1_OUTPUT_RANGE(ldo3_ranges, ARRAY_SIZE(ldo3_ranges)), - STPMU1_OUTPUT_RANGE(NULL, 0), - STPMU1_OUTPUT_RANGE(ldo5_ranges, ARRAY_SIZE(ldo5_ranges)), - STPMU1_OUTPUT_RANGE(ldo6_ranges, ARRAY_SIZE(ldo6_ranges)), -}; - -/* LDO modes */ -static const struct dm_regulator_mode ldo_modes[] = { - STPMU1_MODE(STPMU1_LDO_MODE_NORMAL, - STPMU1_LDO_MODE_NORMAL, "NORMAL"), - STPMU1_MODE(STPMU1_LDO_MODE_BYPASS, - STPMU1_LDO_MODE_BYPASS, "BYPASS"), - STPMU1_MODE(STPMU1_LDO_MODE_SINK_SOURCE, - STPMU1_LDO_MODE_SINK_SOURCE, "SINK SOURCE"), -}; - -static int stpmu1_ldo_get_value(struct udevice *dev) -{ - int sel, ldo = dev->driver_data - 1; - - sel = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo)); - if (sel < 0) - return sel; - - /* ldo4 => 3,3V */ - if (ldo == STPMU1_LDO4) - return STPMU1_LDO4_UV; - - sel &= STPMU1_LDO12356_OUTPUT_MASK; - sel >>= STPMU1_LDO12356_OUTPUT_SHIFT; - - /* ldo3, sel = 31 => BUCK2/2 */ - if (ldo == STPMU1_LDO3 && sel == STPMU1_LDO3_DDR_SEL) - return stpmu1_buck_get_uv(dev->parent, STPMU1_BUCK2) / 2; - - return stpmu1_output_find_uv(sel, &ldo_voltage_range[ldo]); -} - -static int stpmu1_ldo_set_value(struct udevice *dev, int uv) -{ - int sel, ldo = dev->driver_data - 1; - - /* ldo4 => not possible */ - if (ldo == STPMU1_LDO4) - return -EINVAL; - - sel = stpmu1_output_find_sel(uv, &ldo_voltage_range[ldo]); - if (sel < 0) - return sel; - - return pmic_clrsetbits(dev->parent, - STPMU1_LDOX_CTRL_REG(ldo), - STPMU1_LDO12356_OUTPUT_MASK, - sel << STPMU1_LDO12356_OUTPUT_SHIFT); -} - -static int stpmu1_ldo_get_enable(struct udevice *dev) -{ - int ret; - - ret = pmic_reg_read(dev->parent, - STPMU1_LDOX_CTRL_REG(dev->driver_data - 1)); - if (ret < 0) - return false; - - return ret & STPMU1_LDO_EN ? true : false; -} - -static int stpmu1_ldo_set_enable(struct udevice *dev, bool enable) -{ - struct dm_regulator_uclass_platdata *uc_pdata; - int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS : - STPMU1_DEFAULT_STOP_DELAY_MS; - int ret, uv; - - /* if regulator is already in the wanted state, nothing to do */ - if (stpmu1_ldo_get_enable(dev) == enable) - return 0; - - if (enable) { - uc_pdata = dev_get_uclass_platdata(dev); - uv = stpmu1_ldo_get_value(dev); - if ((uv < uc_pdata->min_uV) || (uv > uc_pdata->max_uV)) - stpmu1_ldo_set_value(dev, uc_pdata->min_uV); - } - - ret = pmic_clrsetbits(dev->parent, - STPMU1_LDOX_CTRL_REG(dev->driver_data - 1), - STPMU1_LDO_EN, enable ? STPMU1_LDO_EN : 0); - mdelay(delay); - - return ret; -} - -static int stpmu1_ldo_get_mode(struct udevice *dev) -{ - int ret, ldo = dev->driver_data - 1; - - if (ldo != STPMU1_LDO3) - return -EINVAL; - - ret = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo)); - if (ret < 0) - return ret; - - if (ret & STPMU1_LDO3_MODE) - return STPMU1_LDO_MODE_BYPASS; - - ret &= STPMU1_LDO12356_OUTPUT_MASK; - ret >>= STPMU1_LDO12356_OUTPUT_SHIFT; - - return ret == STPMU1_LDO3_DDR_SEL ? STPMU1_LDO_MODE_SINK_SOURCE : - STPMU1_LDO_MODE_NORMAL; -} - -static int stpmu1_ldo_set_mode(struct udevice *dev, int mode) -{ - int ret, ldo = dev->driver_data - 1; - - if (ldo != STPMU1_LDO3) - return -EINVAL; - - ret = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo)); - if (ret < 0) - return ret; - - switch (mode) { - case STPMU1_LDO_MODE_SINK_SOURCE: - ret &= ~STPMU1_LDO12356_OUTPUT_MASK; - ret |= STPMU1_LDO3_DDR_SEL << STPMU1_LDO12356_OUTPUT_SHIFT; - case STPMU1_LDO_MODE_NORMAL: - ret &= ~STPMU1_LDO3_MODE; - break; - case STPMU1_LDO_MODE_BYPASS: - ret |= STPMU1_LDO3_MODE; - break; - } - - return pmic_reg_write(dev->parent, STPMU1_LDOX_CTRL_REG(ldo), ret); -} - -static int stpmu1_ldo_probe(struct udevice *dev) -{ - struct dm_regulator_uclass_platdata *uc_pdata; - - if (!dev->driver_data || dev->driver_data > STPMU1_MAX_LDO) - return -EINVAL; - - uc_pdata = dev_get_uclass_platdata(dev); - - uc_pdata->type = REGULATOR_TYPE_LDO; - if (dev->driver_data - 1 == STPMU1_LDO3) { - uc_pdata->mode = (struct dm_regulator_mode *)ldo_modes; - uc_pdata->mode_count = ARRAY_SIZE(ldo_modes); - } else { - uc_pdata->mode_count = 0; - } - - return 0; -} - -static const struct dm_regulator_ops stpmu1_ldo_ops = { - .get_value = stpmu1_ldo_get_value, - .set_value = stpmu1_ldo_set_value, - .get_enable = stpmu1_ldo_get_enable, - .set_enable = stpmu1_ldo_set_enable, - .get_mode = stpmu1_ldo_get_mode, - .set_mode = stpmu1_ldo_set_mode, -}; - -U_BOOT_DRIVER(stpmu1_ldo) = { - .name = "stpmu1_ldo", - .id = UCLASS_REGULATOR, - .ops = &stpmu1_ldo_ops, - .probe = stpmu1_ldo_probe, -}; - -/* - * VREF DDR regulator - */ - -static int stpmu1_vref_ddr_get_value(struct udevice *dev) -{ - /* BUCK2/2 */ - return stpmu1_buck_get_uv(dev->parent, STPMU1_BUCK2) / 2; -} - -static int stpmu1_vref_ddr_get_enable(struct udevice *dev) -{ - int ret; - - ret = pmic_reg_read(dev->parent, STPMU1_VREF_CTRL_REG); - if (ret < 0) - return false; - - return ret & STPMU1_VREF_EN ? true : false; -} - -static int stpmu1_vref_ddr_set_enable(struct udevice *dev, bool enable) -{ - int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS : - STPMU1_DEFAULT_STOP_DELAY_MS; - int ret; - - /* if regulator is already in the wanted state, nothing to do */ - if (stpmu1_vref_ddr_get_enable(dev) == enable) - return 0; - - ret = pmic_clrsetbits(dev->parent, STPMU1_VREF_CTRL_REG, - STPMU1_VREF_EN, enable ? STPMU1_VREF_EN : 0); - mdelay(delay); - - return ret; -} - -static int stpmu1_vref_ddr_probe(struct udevice *dev) -{ - struct dm_regulator_uclass_platdata *uc_pdata; - - uc_pdata = dev_get_uclass_platdata(dev); - - uc_pdata->type = REGULATOR_TYPE_FIXED; - uc_pdata->mode_count = 0; - - return 0; -} - -static const struct dm_regulator_ops stpmu1_vref_ddr_ops = { - .get_value = stpmu1_vref_ddr_get_value, - .get_enable = stpmu1_vref_ddr_get_enable, - .set_enable = stpmu1_vref_ddr_set_enable, -}; - -U_BOOT_DRIVER(stpmu1_vref_ddr) = { - .name = "stpmu1_vref_ddr", - .id = UCLASS_REGULATOR, - .ops = &stpmu1_vref_ddr_ops, - .probe = stpmu1_vref_ddr_probe, -}; - -/* - * BOOST regulator - */ - -static int stpmu1_boost_get_enable(struct udevice *dev) -{ - int ret; - - ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG); - if (ret < 0) - return false; - - return ret & STPMU1_USB_BOOST_EN ? true : false; -} - -static int stpmu1_boost_set_enable(struct udevice *dev, bool enable) -{ - int ret; - - ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG); - if (ret < 0) - return ret; - - if (!enable && ret & STPMU1_USB_PWR_SW_EN) - return -EINVAL; - - /* if regulator is already in the wanted state, nothing to do */ - if (!!(ret & STPMU1_USB_BOOST_EN) == enable) - return 0; - - ret = pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG, - STPMU1_USB_BOOST_EN, - enable ? STPMU1_USB_BOOST_EN : 0); - if (enable) - mdelay(STPMU1_USB_BOOST_START_UP_DELAY_MS); - - return ret; -} - -static int stpmu1_boost_probe(struct udevice *dev) -{ - struct dm_regulator_uclass_platdata *uc_pdata; - - uc_pdata = dev_get_uclass_platdata(dev); - - uc_pdata->type = REGULATOR_TYPE_FIXED; - uc_pdata->mode_count = 0; - - return 0; -} - -static const struct dm_regulator_ops stpmu1_boost_ops = { - .get_enable = stpmu1_boost_get_enable, - .set_enable = stpmu1_boost_set_enable, -}; - -U_BOOT_DRIVER(stpmu1_boost) = { - .name = "stpmu1_boost", - .id = UCLASS_REGULATOR, - .ops = &stpmu1_boost_ops, - .probe = stpmu1_boost_probe, -}; - -/* - * USB power switch - */ - -static int stpmu1_pwr_sw_get_enable(struct udevice *dev) -{ - uint mask = 1 << dev->driver_data; - int ret; - - ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG); - if (ret < 0) - return false; - - return ret & mask ? true : false; -} - -static int stpmu1_pwr_sw_set_enable(struct udevice *dev, bool enable) -{ - uint mask = 1 << dev->driver_data; - int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS : - STPMU1_DEFAULT_STOP_DELAY_MS; - int ret; - - ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG); - if (ret < 0) - return ret; - - /* if regulator is already in the wanted state, nothing to do */ - if (!!(ret & mask) == enable) - return 0; - - /* Boost management */ - if (enable && !(ret & STPMU1_USB_BOOST_EN)) { - pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG, - STPMU1_USB_BOOST_EN, STPMU1_USB_BOOST_EN); - mdelay(STPMU1_USB_BOOST_START_UP_DELAY_MS); - } else if (!enable && ret & STPMU1_USB_BOOST_EN && - (ret & STPMU1_USB_PWR_SW_EN) != STPMU1_USB_PWR_SW_EN) { - pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG, - STPMU1_USB_BOOST_EN, 0); - } - - ret = pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG, - mask, enable ? mask : 0); - mdelay(delay); - - return ret; -} - -static int stpmu1_pwr_sw_probe(struct udevice *dev) -{ - struct dm_regulator_uclass_platdata *uc_pdata; - - if (!dev->driver_data || dev->driver_data > STPMU1_MAX_PWR_SW) - return -EINVAL; - - uc_pdata = dev_get_uclass_platdata(dev); - - uc_pdata->type = REGULATOR_TYPE_FIXED; - uc_pdata->mode_count = 0; - - return 0; -} - -static const struct dm_regulator_ops stpmu1_pwr_sw_ops = { - .get_enable = stpmu1_pwr_sw_get_enable, - .set_enable = stpmu1_pwr_sw_set_enable, -}; - -U_BOOT_DRIVER(stpmu1_pwr_sw) = { - .name = "stpmu1_pwr_sw", - .id = UCLASS_REGULATOR, - .ops = &stpmu1_pwr_sw_ops, - .probe = stpmu1_pwr_sw_probe, -}; -- cgit v1.1