Loading Documentation/devicetree/bindings/regulator/pfuze100.txt 0 → 100644 +115 −0 Original line number Diff line number Diff line PFUZE100 family of regulators Required properties: - compatible: "fsl,pfuze100" - reg: I2C slave address Required child node: - regulators: This is the list of child nodes that specify the regulator initialization data for defined regulators. Please refer to below doc Documentation/devicetree/bindings/regulator/regulator.txt. The valid names for regulators are: sw1ab,sw1c,sw2,sw3a,sw3b,sw4,swbst,vsnvs,vrefddr,vgen1~vgen6 Each regulator is defined using the standard binding for regulators. Example: pmic: pfuze100@08 { compatible = "fsl,pfuze100"; reg = <0x08>; regulators { sw1a_reg: sw1ab { regulator-min-microvolt = <300000>; regulator-max-microvolt = <1875000>; regulator-boot-on; regulator-always-on; regulator-ramp-delay = <6250>; }; sw1c_reg: sw1c { regulator-min-microvolt = <300000>; regulator-max-microvolt = <1875000>; regulator-boot-on; regulator-always-on; }; sw2_reg: sw2 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <3300000>; regulator-boot-on; regulator-always-on; }; sw3a_reg: sw3a { regulator-min-microvolt = <400000>; regulator-max-microvolt = <1975000>; regulator-boot-on; regulator-always-on; }; sw3b_reg: sw3b { regulator-min-microvolt = <400000>; regulator-max-microvolt = <1975000>; regulator-boot-on; regulator-always-on; }; sw4_reg: sw4 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <3300000>; }; swbst_reg: swbst { regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5150000>; }; snvs_reg: vsnvs { regulator-min-microvolt = <1000000>; regulator-max-microvolt = <3000000>; regulator-boot-on; regulator-always-on; }; vref_reg: vrefddr { regulator-boot-on; regulator-always-on; }; vgen1_reg: vgen1 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <1550000>; }; vgen2_reg: vgen2 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <1550000>; }; vgen3_reg: vgen3 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; }; vgen4_reg: vgen4 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; vgen5_reg: vgen5 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; vgen6_reg: vgen6 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; }; }; drivers/regulator/Kconfig +8 −0 Original line number Diff line number Diff line Loading @@ -385,6 +385,14 @@ config REGULATOR_PCF50633 Say Y here to support the voltage regulators and convertors on PCF50633 config REGULATOR_PFUZE100 tristate "Support regulators on Freescale PFUZE100 PMIC" depends on I2C select REGMAP_I2C help Say y here to support the regulators found on the Freescale PFUZE100 PMIC. config REGULATOR_RC5T583 tristate "RICOH RC5T583 Power regulators" depends on MFD_RC5T583 Loading drivers/regulator/Makefile +1 −0 Original line number Diff line number Diff line Loading @@ -49,6 +49,7 @@ obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o Loading drivers/regulator/pfuze100-regulator.c 0 → 100644 +445 −0 Original line number Diff line number Diff line /* * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/err.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/regulator/of_regulator.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/pfuze100.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/regmap.h> #define PFUZE_NUMREGS 128 #define PFUZE100_VOL_OFFSET 0 #define PFUZE100_STANDBY_OFFSET 1 #define PFUZE100_MODE_OFFSET 3 #define PFUZE100_CONF_OFFSET 4 #define PFUZE100_DEVICEID 0x0 #define PFUZE100_REVID 0x3 #define PFUZE100_FABID 0x3 #define PFUZE100_SW1ABVOL 0x20 #define PFUZE100_SW1CVOL 0x2e #define PFUZE100_SW2VOL 0x35 #define PFUZE100_SW3AVOL 0x3c #define PFUZE100_SW3BVOL 0x43 #define PFUZE100_SW4VOL 0x4a #define PFUZE100_SWBSTCON1 0x66 #define PFUZE100_VREFDDRCON 0x6a #define PFUZE100_VSNVSVOL 0x6b #define PFUZE100_VGEN1VOL 0x6c #define PFUZE100_VGEN2VOL 0x6d #define PFUZE100_VGEN3VOL 0x6e #define PFUZE100_VGEN4VOL 0x6f #define PFUZE100_VGEN5VOL 0x70 #define PFUZE100_VGEN6VOL 0x71 struct pfuze_regulator { struct regulator_desc desc; unsigned char stby_reg; unsigned char stby_mask; }; struct pfuze_chip { struct regmap *regmap; struct device *dev; struct pfuze_regulator regulator_descs[PFUZE100_MAX_REGULATOR]; struct regulator_dev *regulators[PFUZE100_MAX_REGULATOR]; }; static const int pfuze100_swbst[] = { 5000000, 5050000, 5100000, 5150000, }; static const int pfuze100_vsnvs[] = { 1000000, 1100000, 1200000, 1300000, 1500000, 1800000, 3000000, }; static const struct i2c_device_id pfuze_device_id[] = { {.name = "pfuze100"}, {}, }; MODULE_DEVICE_TABLE(i2c, pfuze_device_id); static const struct of_device_id pfuze_dt_ids[] = { { .compatible = "fsl,pfuze100" }, {}, }; MODULE_DEVICE_TABLE(of, pfuze_dt_ids); static int pfuze100_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) { struct pfuze_chip *pfuze100 = rdev_get_drvdata(rdev); int id = rdev->desc->id; unsigned int ramp_bits; int ret; if (id < PFUZE100_SWBST) { ramp_delay = 12500 / ramp_delay; ramp_bits = (ramp_delay >> 1) - (ramp_delay >> 3); ret = regmap_update_bits(pfuze100->regmap, rdev->desc->vsel_reg + 4, 0xc0, ramp_bits << 6); if (ret < 0) dev_err(pfuze100->dev, "ramp failed, err %d\n", ret); } else ret = -EACCES; return ret; } static struct regulator_ops pfuze100_ldo_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, }; static struct regulator_ops pfuze100_fixed_regulator_ops = { .list_voltage = regulator_list_voltage_linear, }; static struct regulator_ops pfuze100_sw_regulator_ops = { .list_voltage = regulator_list_voltage_linear, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_ramp_delay = pfuze100_set_ramp_delay, }; static struct regulator_ops pfuze100_swb_regulator_ops = { .list_voltage = regulator_list_voltage_table, .map_voltage = regulator_map_voltage_ascend, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, }; #define PFUZE100_FIXED_REG(_name, base, voltage) \ [PFUZE100_ ## _name] = { \ .desc = { \ .name = #_name, \ .n_voltages = 1, \ .ops = &pfuze100_fixed_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PFUZE100_ ## _name, \ .owner = THIS_MODULE, \ .min_uV = (voltage), \ .enable_reg = (base), \ .enable_mask = 0x10, \ }, \ } #define PFUZE100_SW_REG(_name, base, min, max, step) \ [PFUZE100_ ## _name] = { \ .desc = { \ .name = #_name,\ .n_voltages = ((max) - (min)) / (step) + 1, \ .ops = &pfuze100_sw_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PFUZE100_ ## _name, \ .owner = THIS_MODULE, \ .min_uV = (min), \ .uV_step = (step), \ .vsel_reg = (base) + PFUZE100_VOL_OFFSET, \ .vsel_mask = 0x3f, \ }, \ .stby_reg = (base) + PFUZE100_STANDBY_OFFSET, \ .stby_mask = 0x3f, \ } #define PFUZE100_SWB_REG(_name, base, mask, voltages) \ [PFUZE100_ ## _name] = { \ .desc = { \ .name = #_name, \ .n_voltages = ARRAY_SIZE(voltages), \ .ops = &pfuze100_swb_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PFUZE100_ ## _name, \ .owner = THIS_MODULE, \ .volt_table = voltages, \ .vsel_reg = (base), \ .vsel_mask = (mask), \ }, \ } #define PFUZE100_VGEN_REG(_name, base, min, max, step) \ [PFUZE100_ ## _name] = { \ .desc = { \ .name = #_name, \ .n_voltages = ((max) - (min)) / (step) + 1, \ .ops = &pfuze100_ldo_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PFUZE100_ ## _name, \ .owner = THIS_MODULE, \ .min_uV = (min), \ .uV_step = (step), \ .vsel_reg = (base), \ .vsel_mask = 0xf, \ .enable_reg = (base), \ .enable_mask = 0x10, \ }, \ .stby_reg = (base), \ .stby_mask = 0x20, \ } static struct pfuze_regulator pfuze100_regulators[] = { PFUZE100_SW_REG(SW1AB, PFUZE100_SW1ABVOL, 300000, 1875000, 25000), PFUZE100_SW_REG(SW1C, PFUZE100_SW1CVOL, 300000, 1875000, 25000), PFUZE100_SW_REG(SW2, PFUZE100_SW2VOL, 400000, 1975000, 25000), PFUZE100_SW_REG(SW3A, PFUZE100_SW3AVOL, 400000, 1975000, 25000), PFUZE100_SW_REG(SW3B, PFUZE100_SW3BVOL, 400000, 1975000, 25000), PFUZE100_SW_REG(SW4, PFUZE100_SW4VOL, 400000, 1975000, 25000), PFUZE100_SWB_REG(SWBST, PFUZE100_SWBSTCON1, 0x3 , pfuze100_swbst), PFUZE100_SWB_REG(VSNVS, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs), PFUZE100_FIXED_REG(VREFDDR, PFUZE100_VREFDDRCON, 750000), PFUZE100_VGEN_REG(VGEN1, PFUZE100_VGEN1VOL, 800000, 1550000, 50000), PFUZE100_VGEN_REG(VGEN2, PFUZE100_VGEN2VOL, 800000, 1550000, 50000), PFUZE100_VGEN_REG(VGEN3, PFUZE100_VGEN3VOL, 1800000, 3300000, 100000), PFUZE100_VGEN_REG(VGEN4, PFUZE100_VGEN4VOL, 1800000, 3300000, 100000), PFUZE100_VGEN_REG(VGEN5, PFUZE100_VGEN5VOL, 1800000, 3300000, 100000), PFUZE100_VGEN_REG(VGEN6, PFUZE100_VGEN6VOL, 1800000, 3300000, 100000), }; #ifdef CONFIG_OF static struct of_regulator_match pfuze100_matches[] = { { .name = "sw1ab", }, { .name = "sw1c", }, { .name = "sw2", }, { .name = "sw3a", }, { .name = "sw3b", }, { .name = "sw4", }, { .name = "swbst", }, { .name = "vsnvs", }, { .name = "vrefddr", }, { .name = "vgen1", }, { .name = "vgen2", }, { .name = "vgen3", }, { .name = "vgen4", }, { .name = "vgen5", }, { .name = "vgen6", }, }; static int pfuze_parse_regulators_dt(struct pfuze_chip *chip) { struct device *dev = chip->dev; struct device_node *np, *parent; int ret; np = of_node_get(dev->parent->of_node); if (!np) return 0; parent = of_find_node_by_name(np, "regulators"); if (!parent) { dev_err(dev, "regulators node not found\n"); return -EINVAL; } ret = of_regulator_match(dev, parent, pfuze100_matches, ARRAY_SIZE(pfuze100_matches)); of_node_put(parent); if (ret < 0) { dev_err(dev, "Error parsing regulator init data: %d\n", ret); return ret; } return 0; } static inline struct regulator_init_data *match_init_data(int index) { return pfuze100_matches[index].init_data; } static inline struct device_node *match_of_node(int index) { return pfuze100_matches[index].of_node; } #else static int pfuze_parse_regulators_dt(struct pfuze_chip *chip) { return 0; } static inline struct regulator_init_data *match_init_data(int index) { return NULL; } static inline struct device_node *match_of_node(int index) { return NULL; } #endif static int pfuze_identify(struct pfuze_chip *pfuze_chip) { unsigned int value; int ret; ret = regmap_read(pfuze_chip->regmap, PFUZE100_DEVICEID, &value); if (ret) return ret; if (value & 0x0f) { dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); return -ENODEV; } ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value); if (ret) return ret; dev_info(pfuze_chip->dev, "Full lay: %x, Metal lay: %x\n", (value & 0xf0) >> 4, value & 0x0f); ret = regmap_read(pfuze_chip->regmap, PFUZE100_FABID, &value); if (ret) return ret; dev_info(pfuze_chip->dev, "FAB: %x, FIN: %x\n", (value & 0xc) >> 2, value & 0x3); return 0; } static const struct regmap_config pfuze_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = PFUZE_NUMREGS - 1, .cache_type = REGCACHE_RBTREE, }; static int pfuze100_regulator_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct pfuze_chip *pfuze_chip; struct pfuze_regulator_platform_data *pdata = dev_get_platdata(&client->dev); struct regulator_config config = { }; int i, ret; pfuze_chip = devm_kzalloc(&client->dev, sizeof(*pfuze_chip), GFP_KERNEL); if (!pfuze_chip) return -ENOMEM; i2c_set_clientdata(client, pfuze_chip); memcpy(pfuze_chip->regulator_descs, pfuze100_regulators, sizeof(pfuze_chip->regulator_descs)); pfuze_chip->dev = &client->dev; pfuze_chip->regmap = devm_regmap_init_i2c(client, &pfuze_regmap_config); if (IS_ERR(pfuze_chip->regmap)) { ret = PTR_ERR(pfuze_chip->regmap); dev_err(&client->dev, "regmap allocation failed with err %d\n", ret); return ret; } ret = pfuze_identify(pfuze_chip); if (ret) { dev_err(&client->dev, "unrecognized pfuze chip ID!\n"); return ret; } ret = pfuze_parse_regulators_dt(pfuze_chip); if (ret) return ret; for (i = 0; i < PFUZE100_MAX_REGULATOR; i++) { struct regulator_init_data *init_data; struct regulator_desc *desc; int val; desc = &pfuze_chip->regulator_descs[i].desc; if (pdata) init_data = pdata->init_data[i]; else init_data = match_init_data(i); /* SW2~SW4 high bit check and modify the voltage value table */ if (i > PFUZE100_SW1C && i < PFUZE100_SWBST) { regmap_read(pfuze_chip->regmap, desc->vsel_reg, &val); if (val & 0x40) { desc->min_uV = 800000; desc->uV_step = 50000; desc->n_voltages = 51; } } config.dev = &client->dev; config.init_data = init_data; config.driver_data = pfuze_chip; config.of_node = match_of_node(i); pfuze_chip->regulators[i] = regulator_register(desc, &config); if (IS_ERR(pfuze_chip->regulators[i])) { dev_err(&client->dev, "register regulator%s failed\n", pfuze100_regulators[i].desc.name); ret = PTR_ERR(pfuze_chip->regulators[i]); while (--i >= 0) regulator_unregister(pfuze_chip->regulators[i]); return ret; } } return 0; } static int pfuze100_regulator_remove(struct i2c_client *client) { int i; struct pfuze_chip *pfuze_chip = i2c_get_clientdata(client); for (i = 0; i < PFUZE100_MAX_REGULATOR; i++) regulator_unregister(pfuze_chip->regulators[i]); return 0; } static struct i2c_driver pfuze_driver = { .id_table = pfuze_device_id, .driver = { .name = "pfuze100-regulator", .owner = THIS_MODULE, .of_match_table = pfuze_dt_ids, }, .probe = pfuze100_regulator_probe, .remove = pfuze100_regulator_remove, }; module_i2c_driver(pfuze_driver); MODULE_AUTHOR("Robin Gong <b38343@freescale.com>"); MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100 PMIC"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("i2c:pfuze100-regulator"); include/linux/regulator/pfuze100.h 0 → 100644 +44 −0 Original line number Diff line number Diff line /* * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that 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. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef __LINUX_REG_PFUZE100_H #define __LINUX_REG_PFUZE100_H #define PFUZE100_SW1AB 0 #define PFUZE100_SW1C 1 #define PFUZE100_SW2 2 #define PFUZE100_SW3A 3 #define PFUZE100_SW3B 4 #define PFUZE100_SW4 5 #define PFUZE100_SWBST 6 #define PFUZE100_VSNVS 7 #define PFUZE100_VREFDDR 8 #define PFUZE100_VGEN1 9 #define PFUZE100_VGEN2 10 #define PFUZE100_VGEN3 11 #define PFUZE100_VGEN4 12 #define PFUZE100_VGEN5 13 #define PFUZE100_VGEN6 14 #define PFUZE100_MAX_REGULATOR 15 struct regulator_init_data; struct pfuze_regulator_platform_data { struct regulator_init_data *init_data[PFUZE100_MAX_REGULATOR]; }; #endif /* __LINUX_REG_PFUZE100_H */ Loading
Documentation/devicetree/bindings/regulator/pfuze100.txt 0 → 100644 +115 −0 Original line number Diff line number Diff line PFUZE100 family of regulators Required properties: - compatible: "fsl,pfuze100" - reg: I2C slave address Required child node: - regulators: This is the list of child nodes that specify the regulator initialization data for defined regulators. Please refer to below doc Documentation/devicetree/bindings/regulator/regulator.txt. The valid names for regulators are: sw1ab,sw1c,sw2,sw3a,sw3b,sw4,swbst,vsnvs,vrefddr,vgen1~vgen6 Each regulator is defined using the standard binding for regulators. Example: pmic: pfuze100@08 { compatible = "fsl,pfuze100"; reg = <0x08>; regulators { sw1a_reg: sw1ab { regulator-min-microvolt = <300000>; regulator-max-microvolt = <1875000>; regulator-boot-on; regulator-always-on; regulator-ramp-delay = <6250>; }; sw1c_reg: sw1c { regulator-min-microvolt = <300000>; regulator-max-microvolt = <1875000>; regulator-boot-on; regulator-always-on; }; sw2_reg: sw2 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <3300000>; regulator-boot-on; regulator-always-on; }; sw3a_reg: sw3a { regulator-min-microvolt = <400000>; regulator-max-microvolt = <1975000>; regulator-boot-on; regulator-always-on; }; sw3b_reg: sw3b { regulator-min-microvolt = <400000>; regulator-max-microvolt = <1975000>; regulator-boot-on; regulator-always-on; }; sw4_reg: sw4 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <3300000>; }; swbst_reg: swbst { regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5150000>; }; snvs_reg: vsnvs { regulator-min-microvolt = <1000000>; regulator-max-microvolt = <3000000>; regulator-boot-on; regulator-always-on; }; vref_reg: vrefddr { regulator-boot-on; regulator-always-on; }; vgen1_reg: vgen1 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <1550000>; }; vgen2_reg: vgen2 { regulator-min-microvolt = <800000>; regulator-max-microvolt = <1550000>; }; vgen3_reg: vgen3 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; }; vgen4_reg: vgen4 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; vgen5_reg: vgen5 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; vgen6_reg: vgen6 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; }; };
drivers/regulator/Kconfig +8 −0 Original line number Diff line number Diff line Loading @@ -385,6 +385,14 @@ config REGULATOR_PCF50633 Say Y here to support the voltage regulators and convertors on PCF50633 config REGULATOR_PFUZE100 tristate "Support regulators on Freescale PFUZE100 PMIC" depends on I2C select REGMAP_I2C help Say y here to support the regulators found on the Freescale PFUZE100 PMIC. config REGULATOR_RC5T583 tristate "RICOH RC5T583 Power regulators" depends on MFD_RC5T583 Loading
drivers/regulator/Makefile +1 −0 Original line number Diff line number Diff line Loading @@ -49,6 +49,7 @@ obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o Loading
drivers/regulator/pfuze100-regulator.c 0 → 100644 +445 −0 Original line number Diff line number Diff line /* * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/err.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/regulator/of_regulator.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/pfuze100.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/regmap.h> #define PFUZE_NUMREGS 128 #define PFUZE100_VOL_OFFSET 0 #define PFUZE100_STANDBY_OFFSET 1 #define PFUZE100_MODE_OFFSET 3 #define PFUZE100_CONF_OFFSET 4 #define PFUZE100_DEVICEID 0x0 #define PFUZE100_REVID 0x3 #define PFUZE100_FABID 0x3 #define PFUZE100_SW1ABVOL 0x20 #define PFUZE100_SW1CVOL 0x2e #define PFUZE100_SW2VOL 0x35 #define PFUZE100_SW3AVOL 0x3c #define PFUZE100_SW3BVOL 0x43 #define PFUZE100_SW4VOL 0x4a #define PFUZE100_SWBSTCON1 0x66 #define PFUZE100_VREFDDRCON 0x6a #define PFUZE100_VSNVSVOL 0x6b #define PFUZE100_VGEN1VOL 0x6c #define PFUZE100_VGEN2VOL 0x6d #define PFUZE100_VGEN3VOL 0x6e #define PFUZE100_VGEN4VOL 0x6f #define PFUZE100_VGEN5VOL 0x70 #define PFUZE100_VGEN6VOL 0x71 struct pfuze_regulator { struct regulator_desc desc; unsigned char stby_reg; unsigned char stby_mask; }; struct pfuze_chip { struct regmap *regmap; struct device *dev; struct pfuze_regulator regulator_descs[PFUZE100_MAX_REGULATOR]; struct regulator_dev *regulators[PFUZE100_MAX_REGULATOR]; }; static const int pfuze100_swbst[] = { 5000000, 5050000, 5100000, 5150000, }; static const int pfuze100_vsnvs[] = { 1000000, 1100000, 1200000, 1300000, 1500000, 1800000, 3000000, }; static const struct i2c_device_id pfuze_device_id[] = { {.name = "pfuze100"}, {}, }; MODULE_DEVICE_TABLE(i2c, pfuze_device_id); static const struct of_device_id pfuze_dt_ids[] = { { .compatible = "fsl,pfuze100" }, {}, }; MODULE_DEVICE_TABLE(of, pfuze_dt_ids); static int pfuze100_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) { struct pfuze_chip *pfuze100 = rdev_get_drvdata(rdev); int id = rdev->desc->id; unsigned int ramp_bits; int ret; if (id < PFUZE100_SWBST) { ramp_delay = 12500 / ramp_delay; ramp_bits = (ramp_delay >> 1) - (ramp_delay >> 3); ret = regmap_update_bits(pfuze100->regmap, rdev->desc->vsel_reg + 4, 0xc0, ramp_bits << 6); if (ret < 0) dev_err(pfuze100->dev, "ramp failed, err %d\n", ret); } else ret = -EACCES; return ret; } static struct regulator_ops pfuze100_ldo_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, }; static struct regulator_ops pfuze100_fixed_regulator_ops = { .list_voltage = regulator_list_voltage_linear, }; static struct regulator_ops pfuze100_sw_regulator_ops = { .list_voltage = regulator_list_voltage_linear, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_ramp_delay = pfuze100_set_ramp_delay, }; static struct regulator_ops pfuze100_swb_regulator_ops = { .list_voltage = regulator_list_voltage_table, .map_voltage = regulator_map_voltage_ascend, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, }; #define PFUZE100_FIXED_REG(_name, base, voltage) \ [PFUZE100_ ## _name] = { \ .desc = { \ .name = #_name, \ .n_voltages = 1, \ .ops = &pfuze100_fixed_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PFUZE100_ ## _name, \ .owner = THIS_MODULE, \ .min_uV = (voltage), \ .enable_reg = (base), \ .enable_mask = 0x10, \ }, \ } #define PFUZE100_SW_REG(_name, base, min, max, step) \ [PFUZE100_ ## _name] = { \ .desc = { \ .name = #_name,\ .n_voltages = ((max) - (min)) / (step) + 1, \ .ops = &pfuze100_sw_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PFUZE100_ ## _name, \ .owner = THIS_MODULE, \ .min_uV = (min), \ .uV_step = (step), \ .vsel_reg = (base) + PFUZE100_VOL_OFFSET, \ .vsel_mask = 0x3f, \ }, \ .stby_reg = (base) + PFUZE100_STANDBY_OFFSET, \ .stby_mask = 0x3f, \ } #define PFUZE100_SWB_REG(_name, base, mask, voltages) \ [PFUZE100_ ## _name] = { \ .desc = { \ .name = #_name, \ .n_voltages = ARRAY_SIZE(voltages), \ .ops = &pfuze100_swb_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PFUZE100_ ## _name, \ .owner = THIS_MODULE, \ .volt_table = voltages, \ .vsel_reg = (base), \ .vsel_mask = (mask), \ }, \ } #define PFUZE100_VGEN_REG(_name, base, min, max, step) \ [PFUZE100_ ## _name] = { \ .desc = { \ .name = #_name, \ .n_voltages = ((max) - (min)) / (step) + 1, \ .ops = &pfuze100_ldo_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PFUZE100_ ## _name, \ .owner = THIS_MODULE, \ .min_uV = (min), \ .uV_step = (step), \ .vsel_reg = (base), \ .vsel_mask = 0xf, \ .enable_reg = (base), \ .enable_mask = 0x10, \ }, \ .stby_reg = (base), \ .stby_mask = 0x20, \ } static struct pfuze_regulator pfuze100_regulators[] = { PFUZE100_SW_REG(SW1AB, PFUZE100_SW1ABVOL, 300000, 1875000, 25000), PFUZE100_SW_REG(SW1C, PFUZE100_SW1CVOL, 300000, 1875000, 25000), PFUZE100_SW_REG(SW2, PFUZE100_SW2VOL, 400000, 1975000, 25000), PFUZE100_SW_REG(SW3A, PFUZE100_SW3AVOL, 400000, 1975000, 25000), PFUZE100_SW_REG(SW3B, PFUZE100_SW3BVOL, 400000, 1975000, 25000), PFUZE100_SW_REG(SW4, PFUZE100_SW4VOL, 400000, 1975000, 25000), PFUZE100_SWB_REG(SWBST, PFUZE100_SWBSTCON1, 0x3 , pfuze100_swbst), PFUZE100_SWB_REG(VSNVS, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs), PFUZE100_FIXED_REG(VREFDDR, PFUZE100_VREFDDRCON, 750000), PFUZE100_VGEN_REG(VGEN1, PFUZE100_VGEN1VOL, 800000, 1550000, 50000), PFUZE100_VGEN_REG(VGEN2, PFUZE100_VGEN2VOL, 800000, 1550000, 50000), PFUZE100_VGEN_REG(VGEN3, PFUZE100_VGEN3VOL, 1800000, 3300000, 100000), PFUZE100_VGEN_REG(VGEN4, PFUZE100_VGEN4VOL, 1800000, 3300000, 100000), PFUZE100_VGEN_REG(VGEN5, PFUZE100_VGEN5VOL, 1800000, 3300000, 100000), PFUZE100_VGEN_REG(VGEN6, PFUZE100_VGEN6VOL, 1800000, 3300000, 100000), }; #ifdef CONFIG_OF static struct of_regulator_match pfuze100_matches[] = { { .name = "sw1ab", }, { .name = "sw1c", }, { .name = "sw2", }, { .name = "sw3a", }, { .name = "sw3b", }, { .name = "sw4", }, { .name = "swbst", }, { .name = "vsnvs", }, { .name = "vrefddr", }, { .name = "vgen1", }, { .name = "vgen2", }, { .name = "vgen3", }, { .name = "vgen4", }, { .name = "vgen5", }, { .name = "vgen6", }, }; static int pfuze_parse_regulators_dt(struct pfuze_chip *chip) { struct device *dev = chip->dev; struct device_node *np, *parent; int ret; np = of_node_get(dev->parent->of_node); if (!np) return 0; parent = of_find_node_by_name(np, "regulators"); if (!parent) { dev_err(dev, "regulators node not found\n"); return -EINVAL; } ret = of_regulator_match(dev, parent, pfuze100_matches, ARRAY_SIZE(pfuze100_matches)); of_node_put(parent); if (ret < 0) { dev_err(dev, "Error parsing regulator init data: %d\n", ret); return ret; } return 0; } static inline struct regulator_init_data *match_init_data(int index) { return pfuze100_matches[index].init_data; } static inline struct device_node *match_of_node(int index) { return pfuze100_matches[index].of_node; } #else static int pfuze_parse_regulators_dt(struct pfuze_chip *chip) { return 0; } static inline struct regulator_init_data *match_init_data(int index) { return NULL; } static inline struct device_node *match_of_node(int index) { return NULL; } #endif static int pfuze_identify(struct pfuze_chip *pfuze_chip) { unsigned int value; int ret; ret = regmap_read(pfuze_chip->regmap, PFUZE100_DEVICEID, &value); if (ret) return ret; if (value & 0x0f) { dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); return -ENODEV; } ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value); if (ret) return ret; dev_info(pfuze_chip->dev, "Full lay: %x, Metal lay: %x\n", (value & 0xf0) >> 4, value & 0x0f); ret = regmap_read(pfuze_chip->regmap, PFUZE100_FABID, &value); if (ret) return ret; dev_info(pfuze_chip->dev, "FAB: %x, FIN: %x\n", (value & 0xc) >> 2, value & 0x3); return 0; } static const struct regmap_config pfuze_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = PFUZE_NUMREGS - 1, .cache_type = REGCACHE_RBTREE, }; static int pfuze100_regulator_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct pfuze_chip *pfuze_chip; struct pfuze_regulator_platform_data *pdata = dev_get_platdata(&client->dev); struct regulator_config config = { }; int i, ret; pfuze_chip = devm_kzalloc(&client->dev, sizeof(*pfuze_chip), GFP_KERNEL); if (!pfuze_chip) return -ENOMEM; i2c_set_clientdata(client, pfuze_chip); memcpy(pfuze_chip->regulator_descs, pfuze100_regulators, sizeof(pfuze_chip->regulator_descs)); pfuze_chip->dev = &client->dev; pfuze_chip->regmap = devm_regmap_init_i2c(client, &pfuze_regmap_config); if (IS_ERR(pfuze_chip->regmap)) { ret = PTR_ERR(pfuze_chip->regmap); dev_err(&client->dev, "regmap allocation failed with err %d\n", ret); return ret; } ret = pfuze_identify(pfuze_chip); if (ret) { dev_err(&client->dev, "unrecognized pfuze chip ID!\n"); return ret; } ret = pfuze_parse_regulators_dt(pfuze_chip); if (ret) return ret; for (i = 0; i < PFUZE100_MAX_REGULATOR; i++) { struct regulator_init_data *init_data; struct regulator_desc *desc; int val; desc = &pfuze_chip->regulator_descs[i].desc; if (pdata) init_data = pdata->init_data[i]; else init_data = match_init_data(i); /* SW2~SW4 high bit check and modify the voltage value table */ if (i > PFUZE100_SW1C && i < PFUZE100_SWBST) { regmap_read(pfuze_chip->regmap, desc->vsel_reg, &val); if (val & 0x40) { desc->min_uV = 800000; desc->uV_step = 50000; desc->n_voltages = 51; } } config.dev = &client->dev; config.init_data = init_data; config.driver_data = pfuze_chip; config.of_node = match_of_node(i); pfuze_chip->regulators[i] = regulator_register(desc, &config); if (IS_ERR(pfuze_chip->regulators[i])) { dev_err(&client->dev, "register regulator%s failed\n", pfuze100_regulators[i].desc.name); ret = PTR_ERR(pfuze_chip->regulators[i]); while (--i >= 0) regulator_unregister(pfuze_chip->regulators[i]); return ret; } } return 0; } static int pfuze100_regulator_remove(struct i2c_client *client) { int i; struct pfuze_chip *pfuze_chip = i2c_get_clientdata(client); for (i = 0; i < PFUZE100_MAX_REGULATOR; i++) regulator_unregister(pfuze_chip->regulators[i]); return 0; } static struct i2c_driver pfuze_driver = { .id_table = pfuze_device_id, .driver = { .name = "pfuze100-regulator", .owner = THIS_MODULE, .of_match_table = pfuze_dt_ids, }, .probe = pfuze100_regulator_probe, .remove = pfuze100_regulator_remove, }; module_i2c_driver(pfuze_driver); MODULE_AUTHOR("Robin Gong <b38343@freescale.com>"); MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100 PMIC"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("i2c:pfuze100-regulator");
include/linux/regulator/pfuze100.h 0 → 100644 +44 −0 Original line number Diff line number Diff line /* * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that 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. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef __LINUX_REG_PFUZE100_H #define __LINUX_REG_PFUZE100_H #define PFUZE100_SW1AB 0 #define PFUZE100_SW1C 1 #define PFUZE100_SW2 2 #define PFUZE100_SW3A 3 #define PFUZE100_SW3B 4 #define PFUZE100_SW4 5 #define PFUZE100_SWBST 6 #define PFUZE100_VSNVS 7 #define PFUZE100_VREFDDR 8 #define PFUZE100_VGEN1 9 #define PFUZE100_VGEN2 10 #define PFUZE100_VGEN3 11 #define PFUZE100_VGEN4 12 #define PFUZE100_VGEN5 13 #define PFUZE100_VGEN6 14 #define PFUZE100_MAX_REGULATOR 15 struct regulator_init_data; struct pfuze_regulator_platform_data { struct regulator_init_data *init_data[PFUZE100_MAX_REGULATOR]; }; #endif /* __LINUX_REG_PFUZE100_H */
