diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-04-02 20:02:55 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-04-02 20:03:08 +0200 |
| commit | c9494727cf293ae2ec66af57547a3e79c724fec2 (patch) | |
| tree | 44ae197b64fa7530ee695a90ad31326dda06f1e1 /drivers/regulator | |
| parent | 6427462bfa50f50dc6c088c07037264fcc73eca1 (diff) | |
| parent | 42be79e37e264557f12860fa4cc84b4de3685954 (diff) | |
Merge branch 'linus' into sched/core
Merge reason: update to latest upstream
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/regulator')
25 files changed, 1984 insertions, 417 deletions
diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c index 04719551381..5fb83e2ced2 100644 --- a/drivers/regulator/88pm8607.c +++ b/drivers/regulator/88pm8607.c @@ -11,15 +11,17 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/err.h> +#include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> -#include <linux/mfd/88pm8607.h> +#include <linux/mfd/88pm860x.h> struct pm8607_regulator_info { struct regulator_desc desc; - struct pm8607_chip *chip; + struct pm860x_chip *chip; struct regulator_dev *regulator; + struct i2c_client *i2c; int min_uV; int max_uV; @@ -46,7 +48,6 @@ static inline int check_range(struct pm8607_regulator_info *info, static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index) { struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); - uint8_t chip_id = info->chip->chip_id; int ret = -EINVAL; switch (info->desc.id) { @@ -88,79 +89,29 @@ static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index) case PM8607_ID_LDO2: case PM8607_ID_LDO3: case PM8607_ID_LDO9: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - ret = (index < 3) ? (index * 50000 + 1800000) : - ((index < 8) ? (index * 50000 + 2550000) : - -EINVAL); - break; - case PM8607_CHIP_B0: - ret = (index < 3) ? (index * 50000 + 1800000) : - ((index < 7) ? (index * 50000 + 2550000) : - 3300000); - break; - } + ret = (index < 3) ? (index * 50000 + 1800000) : + ((index < 7) ? (index * 50000 + 2550000) : + 3300000); break; case PM8607_ID_LDO4: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - ret = (index < 3) ? (index * 50000 + 1800000) : - ((index < 8) ? (index * 50000 + 2550000) : - -EINVAL); - break; - case PM8607_CHIP_B0: - ret = (index < 3) ? (index * 50000 + 1800000) : - ((index < 6) ? (index * 50000 + 2550000) : - ((index == 6) ? 2900000 : 3300000)); - break; - } + ret = (index < 3) ? (index * 50000 + 1800000) : + ((index < 6) ? (index * 50000 + 2550000) : + ((index == 6) ? 2900000 : 3300000)); break; case PM8607_ID_LDO6: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - ret = (index < 3) ? (index * 50000 + 1800000) : - ((index < 8) ? (index * 50000 + 2450000) : - -EINVAL); - break; - case PM8607_CHIP_B0: - ret = (index < 2) ? (index * 50000 + 1800000) : - ((index < 7) ? (index * 50000 + 2500000) : - 3300000); - break; - } + ret = (index < 2) ? (index * 50000 + 1800000) : + ((index < 7) ? (index * 50000 + 2500000) : + 3300000); break; case PM8607_ID_LDO10: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - ret = (index < 3) ? (index * 50000 + 1800000) : - ((index < 8) ? (index * 50000 + 2550000) : - 1200000); - break; - case PM8607_CHIP_B0: - ret = (index < 3) ? (index * 50000 + 1800000) : - ((index < 7) ? (index * 50000 + 2550000) : - ((index == 7) ? 3300000 : 1200000)); - break; - } + ret = (index < 3) ? (index * 50000 + 1800000) : + ((index < 7) ? (index * 50000 + 2550000) : + ((index == 7) ? 3300000 : 1200000)); break; case PM8607_ID_LDO14: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - ret = (index < 3) ? (index * 50000 + 1800000) : - ((index < 8) ? (index * 50000 + 2550000) : - -EINVAL); - break; - case PM8607_CHIP_B0: - ret = (index < 2) ? (index * 50000 + 1800000) : - ((index < 7) ? (index * 50000 + 2600000) : - 3300000); - break; - } + ret = (index < 2) ? (index * 50000 + 1800000) : + ((index < 7) ? (index * 50000 + 2600000) : + 3300000); break; } return ret; @@ -169,7 +120,6 @@ static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index) static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); - uint8_t chip_id = info->chip->chip_id; int val = -ENOENT; int ret; @@ -254,161 +204,77 @@ static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) case PM8607_ID_LDO2: case PM8607_ID_LDO3: case PM8607_ID_LDO9: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - if (min_uV < 2700000) /* 1800mV ~ 1900mV / 50mV */ - if (min_uV <= 1800000) - val = 0; - else if (min_uV <= 1900000) - val = (min_uV - 1750001) / 50000; - else - val = 3; /* 2700mV */ - else { /* 2700mV ~ 2900mV / 50mV */ - if (min_uV <= 2900000) { - val = (min_uV - 2650001) / 50000; - val += 3; - } else - val = -EINVAL; - } - break; - case PM8607_CHIP_B0: - if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */ - if (min_uV <= 1800000) - val = 0; - else if (min_uV <= 1900000) - val = (min_uV - 1750001) / 50000; - else - val = 3; /* 2700mV */ - } else { /* 2700mV ~ 2850mV / 50mV */ - if (min_uV <= 2850000) { - val = (min_uV - 2650001) / 50000; - val += 3; - } else if (min_uV <= 3300000) - val = 7; - else - val = -EINVAL; - } - break; + if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */ + if (min_uV <= 1800000) + val = 0; + else if (min_uV <= 1900000) + val = (min_uV - 1750001) / 50000; + else + val = 3; /* 2700mV */ + } else { /* 2700mV ~ 2850mV / 50mV */ + if (min_uV <= 2850000) { + val = (min_uV - 2650001) / 50000; + val += 3; + } else if (min_uV <= 3300000) + val = 7; + else + val = -EINVAL; } break; case PM8607_ID_LDO4: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - if (min_uV < 2700000) /* 1800mV ~ 1900mV / 50mV */ - if (min_uV <= 1800000) - val = 0; - else if (min_uV <= 1900000) - val = (min_uV - 1750001) / 50000; - else - val = 3; /* 2700mV */ - else { /* 2700mV ~ 2900mV / 50mV */ - if (min_uV <= 2900000) { - val = (min_uV - 2650001) / 50000; - val += 3; - } else - val = -EINVAL; - } - break; - case PM8607_CHIP_B0: - if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */ - if (min_uV <= 1800000) - val = 0; - else if (min_uV <= 1900000) - val = (min_uV - 1750001) / 50000; - else - val = 3; /* 2700mV */ - } else { /* 2700mV ~ 2800mV / 50mV */ - if (min_uV <= 2850000) { - val = (min_uV - 2650001) / 50000; - val += 3; - } else if (min_uV <= 2900000) - val = 6; - else if (min_uV <= 3300000) - val = 7; - else - val = -EINVAL; - } - break; + if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */ + if (min_uV <= 1800000) + val = 0; + else if (min_uV <= 1900000) + val = (min_uV - 1750001) / 50000; + else + val = 3; /* 2700mV */ + } else { /* 2700mV ~ 2800mV / 50mV */ + if (min_uV <= 2850000) { + val = (min_uV - 2650001) / 50000; + val += 3; + } else if (min_uV <= 2900000) + val = 6; + else if (min_uV <= 3300000) + val = 7; + else + val = -EINVAL; } break; case PM8607_ID_LDO6: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - if (min_uV < 2600000) { /* 1800mV ~ 1900mV / 50mV */ - if (min_uV <= 1800000) - val = 0; - else if (min_uV <= 1900000) - val = (min_uV - 1750001) / 50000; - else - val = 3; /* 2600mV */ - } else { /* 2600mV ~ 2800mV / 50mV */ - if (min_uV <= 2800000) { - val = (min_uV - 2550001) / 50000; - val += 3; - } else - val = -EINVAL; - } - break; - case PM8607_CHIP_B0: - if (min_uV < 2600000) { /* 1800mV ~ 1850mV / 50mV */ - if (min_uV <= 1800000) - val = 0; - else if (min_uV <= 1850000) - val = (min_uV - 1750001) / 50000; - else - val = 2; /* 2600mV */ - } else { /* 2600mV ~ 2800mV / 50mV */ - if (min_uV <= 2800000) { - val = (min_uV - 2550001) / 50000; - val += 2; - } else if (min_uV <= 3300000) - val = 7; - else - val = -EINVAL; - } - break; + if (min_uV < 2600000) { /* 1800mV ~ 1850mV / 50mV */ + if (min_uV <= 1800000) + val = 0; + else if (min_uV <= 1850000) + val = (min_uV - 1750001) / 50000; + else + val = 2; /* 2600mV */ + } else { /* 2600mV ~ 2800mV / 50mV */ + if (min_uV <= 2800000) { + val = (min_uV - 2550001) / 50000; + val += 2; + } else if (min_uV <= 3300000) + val = 7; + else + val = -EINVAL; } break; case PM8607_ID_LDO14: - switch (chip_id) { - case PM8607_CHIP_A0: - case PM8607_CHIP_A1: - if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */ - if (min_uV <= 1800000) - val = 0; - else if (min_uV <= 1900000) - val = (min_uV - 1750001) / 50000; - else - val = 3; /* 2700mV */ - } else { /* 2700mV ~ 2900mV / 50mV */ - if (min_uV <= 2900000) { - val = (min_uV - 2650001) / 50000; - val += 3; - } else - val = -EINVAL; - } - break; - case PM8607_CHIP_B0: - if (min_uV < 2700000) { /* 1800mV ~ 1850mV / 50mV */ - if (min_uV <= 1800000) - val = 0; - else if (min_uV <= 1850000) - val = (min_uV - 1750001) / 50000; - else - val = 2; /* 2700mV */ - } else { /* 2700mV ~ 2900mV / 50mV */ - if (min_uV <= 2900000) { - val = (min_uV - 2650001) / 50000; - val += 2; - } else if (min_uV <= 3300000) - val = 7; - else - val = -EINVAL; - } - break; + if (min_uV < 2700000) { /* 1800mV ~ 1850mV / 50mV */ + if (min_uV <= 1800000) + val = 0; + else if (min_uV <= 1850000) + val = (min_uV - 1750001) / 50000; + else + val = 2; /* 2700mV */ + } else { /* 2700mV ~ 2900mV / 50mV */ + if (min_uV <= 2900000) { + val = (min_uV - 2650001) / 50000; + val += 2; + } else if (min_uV <= 3300000) + val = 7; + else + val = -EINVAL; } break; } @@ -428,7 +294,6 @@ static int pm8607_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) { struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); - struct pm8607_chip *chip = info->chip; uint8_t val, mask; int ret; @@ -443,13 +308,13 @@ static int pm8607_set_voltage(struct regulator_dev *rdev, val = (uint8_t)(ret << info->vol_shift); mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; - ret = pm8607_set_bits(chip, info->vol_reg, mask, val); + ret = pm860x_set_bits(info->i2c, info->vol_reg, mask, val); if (ret) return ret; switch (info->desc.id) { case PM8607_ID_BUCK1: case PM8607_ID_BUCK3: - ret = pm8607_set_bits(chip, info->update_reg, + ret = pm860x_set_bits(info->i2c, info->update_reg, 1 << info->update_bit, 1 << info->update_bit); break; @@ -460,11 +325,10 @@ static int pm8607_set_voltage(struct regulator_dev *rdev, static int pm8607_get_voltage(struct regulator_dev *rdev) { struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); - struct pm8607_chip *chip = info->chip; uint8_t val, mask; int ret; - ret = pm8607_reg_read(chip, info->vol_reg); + ret = pm860x_reg_read(info->i2c, info->vol_reg); if (ret < 0) return ret; @@ -477,9 +341,8 @@ static int pm8607_get_voltage(struct regulator_dev *rdev) static int pm8607_enable(struct regulator_dev *rdev) { struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); - struct pm8607_chip *chip = info->chip; - return pm8607_set_bits(chip, info->enable_reg, + return pm860x_set_bits(info->i2c, info->enable_reg, 1 << info->enable_bit, 1 << info->enable_bit); } @@ -487,19 +350,17 @@ static int pm8607_enable(struct regulator_dev *rdev) static int pm8607_disable(struct regulator_dev *rdev) { struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); - struct pm8607_chip *chip = info->chip; - return pm8607_set_bits(chip, info->enable_reg, + return pm860x_set_bits(info->i2c, info->enable_reg, 1 << info->enable_bit, 0); } static int pm8607_is_enabled(struct regulator_dev *rdev) { struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); - struct pm8607_chip *chip = info->chip; int ret; - ret = pm8607_reg_read(chip, info->enable_reg); + ret = pm860x_reg_read(info->i2c, info->enable_reg); if (ret < 0) return ret; @@ -589,8 +450,8 @@ static inline struct pm8607_regulator_info *find_regulator_info(int id) static int __devinit pm8607_regulator_probe(struct platform_device *pdev) { - struct pm8607_chip *chip = dev_get_drvdata(pdev->dev.parent); - struct pm8607_platform_data *pdata = chip->dev->platform_data; + struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); + struct pm860x_platform_data *pdata = chip->dev->platform_data; struct pm8607_regulator_info *info = NULL; info = find_regulator_info(pdev->id); @@ -599,6 +460,7 @@ static int __devinit pm8607_regulator_probe(struct platform_device *pdev) return -EINVAL; } + info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; info->chip = chip; info->regulator = regulator_register(&info->desc, &pdev->dev, diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 262f62eec83..04f2e085116 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -27,6 +27,17 @@ config REGULATOR_DEBUG help Say yes here to enable debugging support. +config REGULATOR_DUMMY + bool "Provide a dummy regulator if regulator lookups fail" + help + If this option is enabled then when a regulator lookup fails + and the board has not specified that it has provided full + constraints then the regulator core will provide an always + enabled dummy regulator will be provided, allowing consumer + drivers to continue. + + A warning will be generated when this substitution is done. + config REGULATOR_FIXED_VOLTAGE tristate "Fixed voltage regulator support" help @@ -69,6 +80,13 @@ config REGULATOR_MAX1586 regulator via I2C bus. The provided regulator is suitable for PXA27x chips to control VCC_CORE and VCC_USIM voltages. +config REGULATOR_MAX8649 + tristate "Maxim 8649 voltage regulator" + depends on I2C + help + This driver controls a Maxim 8649 voltage output regulator via + I2C bus. + config REGULATOR_MAX8660 tristate "Maxim 8660/8661 voltage regulator" depends on I2C @@ -76,6 +94,12 @@ config REGULATOR_MAX8660 This driver controls a Maxim 8660/8661 voltage output regulator via I2C bus. +config REGULATOR_MAX8925 + tristate "Maxim MAX8925 Power Management IC" + depends on MFD_MAX8925 + help + Say y here to support the voltage regulaltor of Maxim MAX8925 PMIC. + config REGULATOR_TWL4030 bool "TI TWL4030/TWL5030/TWL6030/TPS695x0 PMIC" depends on TWL4030_CORE @@ -91,19 +115,26 @@ config REGULATOR_WM831X of PMIC devices. config REGULATOR_WM8350 - tristate "Wolfson Microelectroncis WM8350 AudioPlus PMIC" + tristate "Wolfson Microelectronics WM8350 AudioPlus PMIC" depends on MFD_WM8350 help This driver provides support for the voltage and current regulators of the WM8350 AudioPlus PMIC. config REGULATOR_WM8400 - tristate "Wolfson Microelectroncis WM8400 AudioPlus PMIC" + tristate "Wolfson Microelectronics WM8400 AudioPlus PMIC" depends on MFD_WM8400 help This driver provides support for the voltage regulators of the WM8400 AudioPlus PMIC. +config REGULATOR_WM8994 + tristate "Wolfson Microelectronics WM8994 CODEC" + depends on MFD_WM8994 + help + This driver provides support for the voltage regulators on the + WM8994 CODEC. + config REGULATOR_DA903X tristate "Support regulators on Dialog Semiconductor DA9030/DA9034 PMIC" depends on PMIC_DA903X @@ -166,7 +197,7 @@ config REGULATOR_TPS6507X config REGULATOR_88PM8607 bool "Marvell 88PM8607 Power regulators" - depends on MFD_88PM8607=y + depends on MFD_88PM860X=y help This driver supports 88PM8607 voltage regulator chips. diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index b3c806c7941..4e7feece22d 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -9,15 +9,19 @@ obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o +obj-$(CONFIG_REGULATOR_DUMMY) += dummy.o obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o +obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o +obj-$(CONFIG_REGULATOR_MAX8925) += max8925-regulator.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-ldo.o obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o +obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o obj-$(CONFIG_REGULATOR_DA903X) += da903x.o obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c index b349db4504b..7de950959ed 100644 --- a/drivers/regulator/ab3100.c +++ b/drivers/regulator/ab3100.c @@ -561,7 +561,7 @@ ab3100_regulator_desc[AB3100_NUM_REGULATORS] = { * for all the different regulators. */ -static int __init ab3100_regulators_probe(struct platform_device *pdev) +static int __devinit ab3100_regulators_probe(struct platform_device *pdev) { struct ab3100_platform_data *plfdata = pdev->dev.platform_data; struct ab3100 *ab3100 = platform_get_drvdata(pdev); @@ -641,7 +641,7 @@ static int __init ab3100_regulators_probe(struct platform_device *pdev) return 0; } -static int __exit ab3100_regulators_remove(struct platform_device *pdev) +static int __devexit ab3100_regulators_remove(struct platform_device *pdev) { int i; @@ -659,7 +659,7 @@ static struct platform_driver ab3100_regulators_driver = { .owner = THIS_MODULE, }, .probe = ab3100_regulators_probe, - .remove = __exit_p(ab3100_regulators_remove), + .remove = __devexit_p(ab3100_regulators_remove), }; static __init int ab3100_regulators_init(void) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index b60a4c9f8f1..5af16c2bb54 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -19,10 +19,13 @@ #include <linux/err.h> #include <linux/mutex.h> #include <linux/suspend.h> +#include <linux/delay.h> #include <linux/regulator/consumer.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> +#include "dummy.h" + #define REGULATOR_VERSION "0.5" static DEFINE_MUTEX(regulator_list_mutex); @@ -1035,6 +1038,7 @@ static struct regulator *create_regulator(struct regulator_dev *rdev, goto overflow_err; regulator->dev = dev; + sysfs_attr_init(®ulator->dev_attr.attr); regulator->dev_attr.attr.name = kstrdup(buf, GFP_KERNEL); if (regulator->dev_attr.attr.name == NULL) goto attr_name_err; @@ -1084,6 +1088,13 @@ overflow_err: return NULL; } +static int _regulator_get_enable_time(struct regulator_dev *rdev) +{ + if (!rdev->desc->ops->enable_time) + return 0; + return rdev->desc->ops->enable_time(rdev); +} + /* Internal regulator request function */ static struct regulator *_regulator_get(struct device *dev, const char *id, int exclusive) @@ -1115,6 +1126,22 @@ static struct regulator *_regulator_get(struct device *dev, const char *id, goto found; } } + +#ifdef CONFIG_REGULATOR_DUMMY + if (!devname) + devname = "deviceless"; + + /* If the board didn't flag that it was fully constrained then + * substitute in a dummy regulator so consumers can continue. + */ + if (!has_full_constraints) { + pr_warning("%s supply %s not found, using dummy regulator\n", + devname, id); + rdev = dummy_regulator_rdev; + goto found; + } +#endif + mutex_unlock(®ulator_list_mutex); return regulator; @@ -1251,7 +1278,7 @@ static int _regulator_can_change_status(struct regulator_dev *rdev) /* locks held by regulator_enable() */ static int _regulator_enable(struct regulator_dev *rdev) { - int ret; + int ret, delay; /* do we need to enable the supply regulator first */ if (rdev->supply) { @@ -1275,13 +1302,34 @@ static int _regulator_enable(struct regulator_dev *rdev) if (!_regulator_can_change_status(rdev)) return -EPERM; - if (rdev->desc->ops->enable) { - ret = rdev->desc->ops->enable(rdev); - if (ret < 0) - return ret; - } else { + if (!rdev->desc->ops->enable) return -EINVAL; + + /* Query before enabling in case configuration + * dependant. */ + ret = _regulator_get_enable_time(rdev); + if (ret >= 0) { + delay = ret; + } else { + printk(KERN_WARNING + "%s: enable_time() failed for %s: %d\n", + __func__, rdev_get_name(rdev), + ret); + delay = 0; } + + /* Allow the regulator to ramp; it would be useful + * to extend this for bulk operations so that the + * regulators can ramp together. */ + ret = rdev->desc->ops->enable(rdev); + if (ret < 0) + return ret; + + if (delay >= 1000) + mdelay(delay / 1000); + else if (delay) + udelay(delay); + } else if (ret < 0) { printk(KERN_ERR "%s: is_enabled() failed for %s: %d\n", __func__, rdev_get_name(rdev), ret); @@ -1341,6 +1389,9 @@ static int _regulator_disable(struct regulator_dev *rdev) __func__, rdev_get_name(rdev)); return ret; } + + _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE, + NULL); } /* decrease our supplies ref count and disable if required */ @@ -1399,8 +1450,8 @@ static int _regulator_force_disable(struct regulator_dev *rdev) return ret; } /* notify other consumers that power has been forced off */ - _notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE, - NULL); + _notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE | + REGULATOR_EVENT_DISABLE, NULL); } /* decrease our supplies ref count and disable if required */ @@ -1434,9 +1485,9 @@ EXPORT_SYMBOL_GPL(regulator_force_disable); static int _regulator_is_enabled(struct regulator_dev *rdev) { - /* sanity check */ + /* If we don't know then assume that the regulator is always on */ if (!rdev->desc->ops->is_enabled) - return -EINVAL; + return 1; return rdev->desc->ops->is_enabled(rdev); } @@ -2451,8 +2502,15 @@ EXPORT_SYMBOL_GPL(regulator_get_init_drvdata); static int __init regulator_init(void) { + int ret; + printk(KERN_INFO "regulator: core version %s\n", REGULATOR_VERSION); - return class_register(®ulator_class); + + ret = class_register(®ulator_class); + + regulator_dummy_init(); + + return ret; } /* init early to allow our consumers to complete system booting */ diff --git a/drivers/regulator/dummy.c b/drivers/regulator/dummy.c new file mode 100644 index 00000000000..c7410bde7b5 --- /dev/null +++ b/drivers/regulator/dummy.c @@ -0,0 +1,66 @@ +/* + * dummy.c + * + * Copyright 2010 Wolfson Microelectronics PLC. + * + * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + * + * 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 is useful for systems with mixed controllable and + * non-controllable regulators, as well as for allowing testing on + * systems with no controllable regulators. + */ + +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> + +#include "dummy.h" + +struct regulator_dev *dummy_regulator_rdev; + +static struct regulator_init_data dummy_initdata; + +static struct regulator_ops dummy_ops; + +static struct regulator_desc dummy_desc = { + .name = "dummy", + .id = -1, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .ops = &dummy_ops, +}; + +static struct platform_device *dummy_pdev; + +void __init regulator_dummy_init(void) +{ + int ret; + + dummy_pdev = platform_device_alloc("reg-dummy", -1); + if (!dummy_pdev) { + pr_err("Failed to allocate dummy regulator device\n"); + return; + } + + ret = platform_device_add(dummy_pdev); + if (ret != 0) { + pr_err("Failed to register dummy regulator device: %d\n", ret); + platform_device_put(dummy_pdev); + return; + } + + dummy_regulator_rdev = regulator_register(&dummy_desc, NULL, + &dummy_initdata, NULL); + if (IS_ERR(dummy_regulator_rdev)) { + ret = PTR_ERR(dummy_regulator_rdev); + pr_err("Failed to register regulator: %d\n", ret); + platform_device_unregister(dummy_pdev); + return; + } +} diff --git a/drivers/regulator/dummy.h b/drivers/regulator/dummy.h new file mode 100644 index 00000000000..3921c0e2424 --- /dev/null +++ b/drivers/regulator/dummy.h @@ -0,0 +1,31 @@ +/* + * dummy.h + * + * Copyright 2010 Wolfson Microelectronics PLC. + * + * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + * + * 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 is useful for systems with mixed controllable and + * non-controllable regulators, as well as for allowing testing on + * systems with no controllable regulators. + */ + +#ifndef _DUMMY_H +#define _DUMMY_H + +struct regulator_dev; + +extern struct regulator_dev *dummy_regulator_rdev; + +#ifdef CONFIG_REGULATOR_DUMMY +void __init regulator_dummy_init(void); +#else +static inline void regulator_dummy_init(void) { } +#endif + +#endif diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c index f9f516a3028..d11f7622430 100644 --- a/drivers/regulator/fixed.c +++ b/drivers/regulator/fixed.c @@ -24,14 +24,16 @@ #include <linux/regulator/driver.h> #include <linux/regulator/fixed.h> #include <linux/gpio.h> +#include <linux/delay.h> struct fixed_voltage_data { struct regulator_desc desc; struct regulator_dev *dev; int microvolts; int gpio; - unsigned enable_high:1; - unsigned is_enabled:1; + unsigned startup_delay; + bool enable_high; + bool is_enabled; }; static int fixed_voltage_is_enabled(struct regulator_dev *dev) @@ -47,7 +49,7 @@ static int fixed_voltage_enable(struct regulator_dev *dev) if (gpio_is_valid(data->gpio)) { gpio_set_value_cansleep(data->gpio, data->enable_high); - data->is_enabled = 1; + data->is_enabled = true; } return 0; @@ -59,12 +61,19 @@ static int fixed_voltage_disable(struct regulator_dev *dev) if (gpio_is_valid(data->gpio)) { gpio_set_value_cansleep(data->gpio, !data->enable_high); - data->is_enabled = 0; + data->is_enabled = false; } return 0; } +static int fixed_voltage_enable_time(struct regulator_dev *dev) +{ + struct fixed_voltage_data *data = rdev_get_drvdata(dev); + + return data->startup_delay; +} + static int fixed_voltage_get_voltage(struct regulator_dev *dev) { struct fixed_voltage_data *data = rdev_get_drvdata(dev); @@ -87,11 +96,12 @@ static struct regulator_ops fixed_voltage_ops = { .is_enabled = fixed_voltage_is_enabled, .enable = fixed_voltage_enable, .disable = fixed_voltage_disable, + .enable_time = fixed_voltage_enable_time, .get_voltage = fixed_voltage_get_voltage, .list_voltage = fixed_voltage_list_voltage, }; -static int regulator_fixed_voltage_probe(struct platform_device *pdev) +static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev) { struct fixed_voltage_config *config = pdev->dev.platform_data; struct fixed_voltage_data *drvdata; @@ -117,6 +127,7 @@ static int regulator_fixed_voltage_probe(struct platform_device *pdev) drvdata->microvolts = config->microvolts; drvdata->gpio = config->gpio; + drvdata->startup_delay = config->startup_delay; if (gpio_is_valid(config->gpio)) { drvdata->enable_high = config->enable_high; @@ -163,7 +174,7 @@ static int regulator_fixed_voltage_probe(struct platform_device *pdev) /* Regulator without GPIO control is considered * always enabled */ - drvdata->is_enabled = 1; + drvdata->is_enabled = true; } drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev, @@ -191,7 +202,7 @@ err: return ret; } -static int regulator_fixed_voltage_remove(struct platform_device *pdev) +static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev) { struct fixed_voltage_data *drvdata = platform_get_drvdata(pdev); @@ -205,10 +216,11 @@ static int regulator_fixed_voltage_remove(struct platform_device *pdev) } static struct platform_driver regulator_fixed_voltage_driver = { - .probe = regulator_fixed_voltage_probe, - .remove = regulator_fixed_voltage_remove, + .probe = reg_fixed_voltage_probe, + .remove = __devexit_p(reg_fixed_voltage_remove), .driver = { .name = "reg-fixed-voltage", + .owner = THIS_MODULE, }, }; diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c index 4f33a0f4a17..b20b3e1d821 100644 --- a/drivers/regulator/lp3971.c +++ b/drivers/regulator/lp3971.c @@ -45,7 +45,7 @@ static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val); LP3971_BUCK2 -> 4 LP3971_BUCK3 -> 6 */ -#define BUCK_VOL_CHANGE_SHIFT(x) (((1 << x) & ~0x01) << 1) +#define BUCK_VOL_CHANGE_SHIFT(x) (((!!x) << 2) | (x & ~0x01)) #define BUCK_VOL_CHANGE_FLAG_GO 0x01 #define BUCK_VOL_CHANGE_FLAG_TARGET 0x02 #define BUCK_VOL_CHANGE_FLAG_MASK 0x03 @@ -54,7 +54,7 @@ static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val); #define LP3971_BUCK2_BASE 0x29 #define LP3971_BUCK3_BASE 0x32 -const static int buck_base_addr[] = { +static const int buck_base_addr[] = { LP3971_BUCK1_BASE, LP3971_BUCK2_BASE, LP3971_BUCK3_BASE, @@ -63,7 +63,7 @@ const static int buck_base_addr[] = { #define LP3971_BUCK_TARGET_VOL1_REG(x) (buck_base_addr[x]) #define LP3971_BUCK_TARGET_VOL2_REG(x) (buck_base_addr[x]+1) -const static int buck_voltage_map[] = { +static const int buck_voltage_map[] = { 0, 800, 850, 900, 950, 1000, 1050, 1100, 1150, 1200, 1250, 1300, 1350, 1400, 1450, 1500, 1550, 1600, 1650, 1700, 1800, 1900, 2500, 2800, @@ -96,17 +96,17 @@ const static int buck_voltage_map[] = { #define LDO_VOL_CONTR_SHIFT(x) ((x & 1) << 2) #define LDO_VOL_CONTR_MASK 0x0f -const static int ldo45_voltage_map[] = { +static const int ldo45_voltage_map[] = { 1000, 1050, 1100, 1150, 1200, 1250, 1300, 1350, 1400, 1500, 1800, 1900, 2500, 2800, 3000, 3300, }; -const static int ldo123_voltage_map[] = { +static const int ldo123_voltage_map[] = { 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300, }; -const static int *ldo_voltage_map[] = { +static const int *ldo_voltage_map[] = { ldo123_voltage_map, /* LDO1 */ ldo123_voltage_map, /* LDO2 */ ldo123_voltage_map, /* LDO3 */ @@ -187,7 +187,8 @@ static int lp3971_ldo_set_voltage(struct regulator_dev *dev, return -EINVAL; return lp3971_set_bits(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo), - LDO_VOL_CONTR_MASK << LDO_VOL_CONTR_SHIFT(ldo), val); + LDO_VOL_CONTR_MASK << LDO_VOL_CONTR_SHIFT(ldo), + val << LDO_VOL_CONTR_SHIFT(ldo)); } static struct regulator_ops lp3971_ldo_ops = { @@ -431,20 +432,24 @@ static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val) return ret; } -static int setup_regulators(struct lp3971 *lp3971, - struct lp3971_platform_data *pdata) +static int __devinit setup_regulators(struct lp3971 *lp3971, + struct lp3971_platform_data *pdata) { int i, err; - int num_regulators = pdata->num_regulators; - lp3971->num_regulators = num_regulators; - lp3971->rdev = kzalloc(sizeof(struct regulator_dev *) * num_regulators, - GFP_KERNEL); + + lp3971->num_regulators = pdata->num_regulators; + lp3971->rdev = kcalloc(pdata->num_regulators, + sizeof(struct regulator_dev *), GFP_KERNEL); + if (!lp3971->rdev) { + err = -ENOMEM; + goto err_nomem; + } /* Instantiate the regulators */ - for (i = 0; i < num_regulators; i++) { - int id = pdata->regulators[i].id; - lp3971->rdev[i] = regulator_register(®ulators[id], - lp3971->dev, pdata->regulators[i].initdata, lp3971); + for (i = 0; i < pdata->num_regulators; i++) { + struct lp3971_regulator_subdev *reg = &pdata->regulators[i]; + lp3971->rdev[i] = regulator_register(®ulators[reg->id], + lp3971->dev, reg->initdata, lp3971); if (IS_ERR(lp3971->rdev[i])) { err = PTR_ERR(lp3971->rdev[i]); @@ -455,12 +460,13 @@ static int setup_regulators(struct lp3971 *lp3971, } return 0; + error: - for (i = 0; i < num_regulators; i++) - if (lp3971->rdev[i]) - regulator_unregister(lp3971->rdev[i]); + while (--i >= 0) + regulator_unregister(lp3971->rdev[i]); kfree(lp3971->rdev); lp3971->rdev = NULL; +err_nomem: return err; } @@ -472,15 +478,17 @@ static int __devinit lp3971_i2c_probe(struct i2c_client *i2c, int ret; u16 val; - lp3971 = kzalloc(sizeof(struct lp3971), GFP_KERNEL); - if (lp3971 == NULL) { - ret = -ENOMEM; - goto err; + if (!pdata) { + dev_dbg(&i2c->dev, "No platform init data supplied\n"); + return -ENODEV; } + lp3971 = kzalloc(sizeof(struct lp3971), GFP_KERNEL); + if (lp3971 == NULL) + return -ENOMEM; + lp3971->i2c = i2c; lp3971->dev = &i2c->dev; - i2c_set_clientdata(i2c, lp3971); mutex_init(&lp3971->io_lock); @@ -493,19 +501,15 @@ static int __devinit lp3971_i2c_probe(struct i2c_client *i2c, goto err_detect; } - if (pdata) { - ret = setup_regulators(lp3971, pdata); - if (ret < 0) - goto err_detect; - } else - dev_warn(lp3971->dev, "No platform init data supplied\n"); + ret = setup_regulators(lp3971, pdata); + if (ret < 0) + goto err_detect; + i2c_set_clientdata(i2c, lp3971); return 0; err_detect: - i2c_set_clientdata(i2c, NULL); kfree(lp3971); -err: return ret; } @@ -513,11 +517,13 @@ static int __devexit lp3971_i2c_remove(struct i2c_client *i2c) { struct lp3971 *lp3971 = i2c_get_clientdata(i2c); int i; + + i2c_set_clientdata(i2c, NULL); + for (i = 0; i < lp3971->num_regulators; i++) - if (lp3971->rdev[i]) - regulator_unregister(lp3971->rdev[i]); + regulator_unregister(lp3971->rdev[i]); + kfree(lp3971->rdev); - i2c_set_clientdata(i2c, NULL); kfree(lp3971); return 0; diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index 2c082d3ef48..c0b09e15edb 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -179,8 +179,8 @@ static struct regulator_desc max1586_reg[] = { }, }; -static int max1586_pmic_probe(struct i2c_client *client, - const struct i2c_device_id *i2c_id) +static int __devinit max1586_pmic_probe(struct i2c_client *client, + const struct i2c_device_id *i2c_id) { struct regulator_dev **rdev; struct max1586_platform_data *pdata = client->dev.platform_data; @@ -235,7 +235,7 @@ out: return ret; } -static int max1586_pmic_remove(struct i2c_client *client) +static int __devexit max1586_pmic_remove(struct i2c_client *client) { struct regulator_dev **rdev = i2c_get_clientdata(client); int i; @@ -243,8 +243,8 @@ static int max1586_pmic_remove(struct i2c_client *client) for (i = 0; i <= MAX1586_V6; i++) if (rdev[i]) regulator_unregister(rdev[i]); - kfree(rdev); i2c_set_clientdata(client, NULL); + kfree(rdev); return 0; } @@ -257,9 +257,10 @@ MODULE_DEVICE_TABLE(i2c, max1586_id); static struct i2c_driver max1586_pmic_driver = { .probe = max1586_pmic_probe, - .remove = max1586_pmic_remove, + .remove = __devexit_p(max1586_pmic_remove), .driver = { .name = "max1586", + .owner = THIS_MODULE, }, .id_table = max1586_id, }; diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c new file mode 100644 index 00000000000..833aaedc7e6 --- /dev/null +++ b/drivers/regulator/max8649.c @@ -0,0 +1,409 @@ +/* + * Regulators driver for Maxim max8649 + * + * Copyright (C) 2009-2010 Marvell International Ltd. + * Haojian Zhuang <haojian.zhuang@marvell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/max8649.h> + +#define MAX8649_DCDC_VMIN 750000 /* uV */ +#define MAX8649_DCDC_VMAX 1380000 /* uV */ +#define MAX8649_DCDC_STEP 10000 /* uV */ +#define MAX8649_VOL_MASK 0x3f + +/* Registers */ +#define MAX8649_MODE0 0x00 +#define MAX8649_MODE1 0x01 +#define MAX8649_MODE2 0x02 +#define MAX8649_MODE3 0x03 +#define MAX8649_CONTROL 0x04 +#define MAX8649_SYNC 0x05 +#define MAX8649_RAMP 0x06 +#define MAX8649_CHIP_ID1 0x08 +#define MAX8649_CHIP_ID2 0x09 + +/* Bits */ +#define MAX8649_EN_PD (1 << 7) +#define MAX8649_VID0_PD (1 << 6) +#define MAX8649_VID1_PD (1 << 5) +#define MAX8649_VID_MASK (3 << 5) + +#define MAX8649_FORCE_PWM (1 << 7) +#define MAX8649_SYNC_EXTCLK (1 << 6) + +#define MAX8649_EXT_MASK (3 << 6) + +#define MAX8649_RAMP_MASK (7 << 5) +#define MAX8649_RAMP_DOWN (1 << 1) + +struct max8649_regulator_info { + struct regulator_dev *regulator; + struct i2c_client *i2c; + struct device *dev; + struct mutex io_lock; + + int vol_reg; + unsigned mode:2; /* bit[1:0] = VID1, VID0 */ + unsigned extclk_freq:2; + unsigned extclk:1; + unsigned ramp_timing:3; + unsigned ramp_down:1; +}; + +/* I2C operations */ + +static inline int max8649_read_device(struct i2c_client *i2c, + int reg, int bytes, void *dest) +{ + unsigned char data; + int ret; + + data = (unsigned char)reg; + ret = i2c_master_send(i2c, &data, 1); + if (ret < 0) + return ret; + ret = i2c_master_recv(i2c, dest, bytes); + if (ret < 0) + return ret; + return 0; +} + +static inline int max8649_write_device(struct i2c_client *i2c, + int reg, int bytes, void *src) +{ + unsigned char buf[bytes + 1]; + int ret; + + buf[0] = (unsigned char)reg; + memcpy(&buf[1], src, bytes); + + ret = i2c_master_send(i2c, buf, bytes + 1); + if (ret < 0) + return ret; + return 0; +} + +static int max8649_reg_read(struct i2c_client *i2c, int reg) +{ + struct max8649_regulator_info *info = i2c_get_clientdata(i2c); + unsigned char data; + int ret; + + mutex_lock(&info->io_lock); + ret = max8649_read_device(i2c, reg, 1, &data); + mutex_unlock(&info->io_lock); + + if (ret < 0) + return ret; + return (int)data; +} + +static int max8649_set_bits(struct i2c_client *i2c, int reg, + unsigned char mask, unsigned char data) +{ + struct max8649_regulator_info *info = i2c_get_clientdata(i2c); + unsigned char value; + int ret; + + mutex_lock(&info->io_lock); + ret = max8649_read_device(i2c, reg, 1, &value); + if (ret < 0) + goto out; + value &= ~mask; + value |= data; + ret = max8649_write_device(i2c, reg, 1, &value); +out: + mutex_unlock(&info->io_lock); + return ret; +} + +static inline int check_range(int min_uV, int max_uV) +{ + if ((min_uV < MAX8649_DCDC_VMIN) || (max_uV > MAX8649_DCDC_VMAX) + || (min_uV > max_uV)) + return -EINVAL; + return 0; +} + +static int max8649_list_voltage(struct regulator_dev *rdev, unsigned index) +{ + return (MAX8649_DCDC_VMIN + index * MAX8649_DCDC_STEP); +} + +static int max8649_get_voltage(struct regulator_dev *rdev) +{ + struct max8649_regulator_info *info = rdev_get_drvdata(rdev); + unsigned char data; + int ret; + + ret = max8649_reg_read(info->i2c, info->vol_reg); + if (ret < 0) + return ret; + data = (unsigned char)ret & MAX8649_VOL_MASK; + return max8649_list_voltage(rdev, data); +} + +static int max8649_set_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + struct max8649_regulator_info *info = rdev_get_drvdata(rdev); + unsigned char data, mask; + + if (check_range(min_uV, max_uV)) { + dev_err(info->dev, "invalid voltage range (%d, %d) uV\n", + min_uV, max_uV); + return -EINVAL; + } + data = (min_uV - MAX8649_DCDC_VMIN + MAX8649_DCDC_STEP - 1) + / MAX8649_DCDC_STEP; + mask = MAX8649_VOL_MASK; + + return max8649_set_bits(info->i2c, info->vol_reg, mask, data); +} + +/* EN_PD means pulldown on EN input */ +static int max8649_enable(struct regulator_dev *rdev) +{ + struct max8649_regulator_info *info = rdev_get_drvdata(rdev); + return max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_EN_PD, 0); +} + +/* + * Applied internal pulldown resistor on EN input pin. + * If pulldown EN pin outside, it would be better. + */ +static int max8649_disable(struct regulator_dev *rdev) +{ + struct max8649_regulator_info *info = rdev_get_drvdata(rdev); + return max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_EN_PD, + MAX8649_EN_PD); +} + +static int max8649_is_enabled(struct regulator_dev *rdev) +{ + struct max8649_regulator_info *info = rdev_get_drvdata(rdev); + int ret; + + ret = max8649_reg_read(info->i2c, MAX8649_CONTROL); + if (ret < 0) + return ret; + return !((unsigned char)ret & MAX8649_EN_PD); +} + +static int max8649_enable_time(struct regulator_dev *rdev) +{ + struct max8649_regulator_info *info = rdev_get_drvdata(rdev); + int voltage, rate, ret; + + /* get voltage */ + ret = max8649_reg_read(info->i2c, info->vol_reg); + if (ret < 0) + return ret; + ret &= MAX8649_VOL_MASK; + voltage = max8649_list_voltage(rdev, (unsigned char)ret); /* uV */ + + /* get rate */ + ret = max8649_reg_read(info->i2c, MAX8649_RAMP); + if (ret < 0) + return ret; + ret = (ret & MAX8649_RAMP_MASK) >> 5; + rate = (32 * 1000) >> ret; /* uV/uS */ + + return (voltage / rate); +} + +static int max8649_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + struct max8649_regulator_info *info = rdev_get_drvdata(rdev); + + switch (mode) { + case REGULATOR_MODE_FAST: + max8649_set_bits(info->i2c, info->vol_reg, MAX8649_FORCE_PWM, + MAX8649_FORCE_PWM); + break; + case REGULATOR_MODE_NORMAL: + max8649_set_bits(info->i2c, info->vol_reg, + MAX8649_FORCE_PWM, 0); + break; + default: + return -EINVAL; + } + return 0; +} + +static unsigned int max8649_get_mode(struct regulator_dev *rdev) +{ + struct max8649_regulator_info *info = rdev_get_drvdata(rdev); + int ret; + + ret = max8649_reg_read(info->i2c, info->vol_reg); + if (ret & MAX8649_FORCE_PWM) + return REGULATOR_MODE_FAST; + return REGULATOR_MODE_NORMAL; +} + +static struct regulator_ops max8649_dcdc_ops = { + .set_voltage = max8649_set_voltage, + .get_voltage = max8649_get_voltage, + .list_voltage = max8649_list_voltage, + .enable = max8649_enable, + .disable = max8649_disable, + .is_enabled = max8649_is_enabled, + .enable_time = max8649_enable_time, + .set_mode = max8649_set_mode, + .get_mode = max8649_get_mode, + +}; + +static struct regulator_desc dcdc_desc = { + .name = "max8649", + .ops = &max8649_dcdc_ops, + .type = REGULATOR_VOLTAGE, + .n_voltages = 1 << 6, + .owner = THIS_MODULE, +}; + +static int __devinit max8649_regulator_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct max8649_platform_data *pdata = client->dev.platform_data; + struct max8649_regulator_info *info = NULL; + unsigned char data; + int ret; + + info = kzalloc(sizeof(struct max8649_regulator_info), GFP_KERNEL); + if (!info) { + dev_err(&client->dev, "No enough memory\n"); + return -ENOMEM; + } + + info->i2c = client; + info->dev = &client->dev; + mutex_init(&info->io_lock); + i2c_set_clientdata(client, info); + + info->mode = pdata->mode; + switch (info->mode) { + case 0: + info->vol_reg = MAX8649_MODE0; + break; + case 1: + info->vol_reg = MAX8649_MODE1; + break; + case 2: + info->vol_reg = MAX8649_MODE2; + break; + case 3: + info->vol_reg = MAX8649_MODE3; + break; + default: + break; + } + + ret = max8649_reg_read(info->i2c, MAX8649_CHIP_ID1); + if (ret < 0) { + dev_err(info->dev, "Failed to detect ID of MAX8649:%d\n", + ret); + goto out; + } + dev_info(info->dev, "Detected MAX8649 (ID:%x)\n", ret); + + /* enable VID0 & VID1 */ + max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_VID_MASK, 0); + + /* enable/disable external clock synchronization */ + info->extclk = pdata->extclk; + data = (info->extclk) ? MAX8649_SYNC_EXTCLK : 0; + max8649_set_bits(info->i2c, info->vol_reg, MAX8649_SYNC_EXTCLK, data); + if (info->extclk) { + /* set external clock frequency */ + info->extclk_freq = pdata->extclk_freq; + max8649_set_bits(info->i2c, MAX8649_SYNC, MAX8649_EXT_MASK, + info->extclk_freq); + } + + if (pdata->ramp_timing) { + info->ramp_timing = pdata->ramp_timing; + max8649_set_bits(info->i2c, MAX8649_RAMP, MAX8649_RAMP_MASK, + info->ramp_timing << 5); + } + + info->ramp_down = pdata->ramp_down; + if (info->ramp_down) { + max8649_set_bits(info->i2c, MAX8649_RAMP, MAX8649_RAMP_DOWN, + MAX8649_RAMP_DOWN); + } + + info->regulator = regulator_register(&dcdc_desc, &client->dev, + pdata->regulator, info); + if (IS_ERR(info->regulator)) { + dev_err(info->dev, "failed to register regulator %s\n", + dcdc_desc.name); + ret = PTR_ERR(info->regulator); + goto out; + } + + dev_info(info->dev, "Max8649 regulator device is detected.\n"); + return 0; +out: + i2c_set_clientdata(client, NULL); + kfree(info); + return ret; +} + +static int __devexit max8649_regulator_remove(struct i2c_client *client) +{ + struct max8649_regulator_info *info = i2c_get_clientdata(client); + + if (info) { + if (info->regulator) + regulator_unregister(info->regulator); + i2c_set_clientdata(client, NULL); + kfree(info); + } + + return 0; +} + +static const struct i2c_device_id max8649_id[] = { + { "max8649", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, max8649_id); + +static struct i2c_driver max8649_driver = { + .probe = max8649_regulator_probe, + .remove = __devexit_p(max8649_regulator_remove), + .driver = { + .name = "max8649", + }, + .id_table = max8649_id, +}; + +static int __init max8649_init(void) +{ + return i2c_add_driver(&max8649_driver); +} +subsys_initcall(max8649_init); + +static void __exit max8649_exit(void) +{ + i2c_del_driver(&max8649_driver); +} +module_exit(max8649_exit); + +/* Module information */ +MODULE_DESCRIPTION("MAXIM 8649 voltage regulator driver"); +MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); +MODULE_LICENSE("GPL"); + diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c index acc2fb7b608..47f90b2fc29 100644 --- a/drivers/regulator/max8660.c +++ b/drivers/regulator/max8660.c @@ -345,8 +345,8 @@ static struct regulator_desc max8660_reg[] = { }, }; -static int max8660_probe(struct i2c_client *client, - const struct i2c_device_id *i2c_id) +static int __devinit max8660_probe(struct i2c_client *client, + const struct i2c_device_id *i2c_id) { struct regulator_dev **rdev; struct max8660_platform_data *pdata = client->dev.platform_data; @@ -354,7 +354,7 @@ static int max8660_probe(struct i2c_client *client, int boot_on, i, id, ret = -EINVAL; if (pdata->num_subdevs > MAX8660_V_END) { - dev_err(&client->dev, "Too much regulators found!\n"); + dev_err(&client->dev, "Too many regulators found!\n"); goto out; } @@ -462,7 +462,7 @@ out: return ret; } -static int max8660_remove(struct i2c_client *client) +static int __devexit max8660_remove(struct i2c_client *client) { struct regulator_dev **rdev = i2c_get_clientdata(client); int i; @@ -470,8 +470,8 @@ static int max8660_remove(struct i2c_client *client) for (i = 0; i < MAX8660_V_END; i++) if (rdev[i]) regulator_unregister(rdev[i]); - kfree(rdev); i2c_set_clientdata(client, NULL); + kfree(rdev); return 0; } @@ -485,9 +485,10 @@ MODULE_DEVICE_TABLE(i2c, max8660_id); static struct i2c_driver max8660_driver = { .probe = max8660_probe, - .remove = max8660_remove, + .remove = __devexit_p(max8660_remove), .driver = { .name = "max8660", + .owner = THIS_MODULE, }, .id_table = max8660_id, }; diff --git a/drivers/regulator/max8925-regulator.c b/drivers/regulator/max8925-regulator.c new file mode 100644 index 00000000000..b6218f11c95 --- /dev/null +++ b/drivers/regulator/max8925-regulator.c @@ -0,0 +1,308 @@ +/* + * Regulators driver for Maxim max8925 + * + * Copyright (C) 2009 Marvell International Ltd. + * Haojian Zhuang <haojian.zhuang@marvell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> +#include <linux/mfd/max8925.h> + +#define SD1_DVM_VMIN 850000 +#define SD1_DVM_VMAX 1000000 +#define SD1_DVM_STEP 50000 +#define SD1_DVM_SHIFT 5 /* SDCTL1 bit5 */ +#define SD1_DVM_EN 6 /* SDV1 bit 6 */ + +struct max8925_regulator_info { + struct regulator_desc desc; + struct regulator_dev *regulator; + struct i2c_client *i2c; + struct max8925_chip *chip; + + int min_uV; + int max_uV; + int step_uV; + int vol_reg; + int vol_shift; + int vol_nbits; + int enable_bit; + int enable_reg; +}; + +static inline int check_range(struct max8925_regulator_info *info, + int min_uV, int max_uV) +{ + if (min_uV < info->min_uV || min_uV > info->max_uV) + return -EINVAL; + + return 0; +} + +static int max8925_list_voltage(struct regulator_dev *rdev, unsigned index) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + return info->min_uV + index * info->step_uV; +} + +static int max8925_set_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + unsigned char data, mask; + + if (check_range(info, min_uV, max_uV)) { + dev_err(info->chip->dev, "invalid voltage range (%d, %d) uV\n", + min_uV, max_uV); + return -EINVAL; + } + data = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV; + data <<= info->vol_shift; + mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; + + return max8925_set_bits(info->i2c, info->vol_reg, mask, data); +} + +static int max8925_get_voltage(struct regulator_dev *rdev) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + unsigned char data, mask; + int ret; + + ret = max8925_reg_read(info->i2c, info->vol_reg); + if (ret < 0) + return ret; + mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; + data = (ret & mask) >> info->vol_shift; + + return max8925_list_voltage(rdev, data); +} + +static int max8925_enable(struct regulator_dev *rdev) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + + return max8925_set_bits(info->i2c, info->enable_reg, + 1 << info->enable_bit, + 1 << info->enable_bit); +} + +static int max8925_disable(struct regulator_dev *rdev) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + + return max8925_set_bits(info->i2c, info->enable_reg, + 1 << info->enable_bit, 0); +} + +static int max8925_is_enabled(struct regulator_dev *rdev) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + int ret; + + ret = max8925_reg_read(info->i2c, info->vol_reg); + if (ret < 0) + return ret; + + return ret & (1 << info->enable_bit); +} + +static int max8925_set_dvm_voltage(struct regulator_dev *rdev, int uV) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + unsigned char data, mask; + + if (uV < SD1_DVM_VMIN || uV > SD1_DVM_VMAX) + return -EINVAL; + + data = (uV - SD1_DVM_VMIN + SD1_DVM_STEP - 1) / SD1_DVM_STEP; + data <<= SD1_DVM_SHIFT; + mask = 3 << SD1_DVM_SHIFT; + + return max8925_set_bits(info->i2c, info->enable_reg, mask, data); +} + +static int max8925_set_dvm_enable(struct regulator_dev *rdev) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + + return max8925_set_bits(info->i2c, info->vol_reg, 1 << SD1_DVM_EN, + 1 << SD1_DVM_EN); +} + +static int max8925_set_dvm_disable(struct regulator_dev *rdev) +{ + struct max8925_regulator_info *info = rdev_get_drvdata(rdev); + + return max8925_set_bits(info->i2c, info->vol_reg, 1 << SD1_DVM_EN, 0); +} + +static struct regulator_ops max8925_regulator_sdv_ops = { + .set_voltage = max8925_set_voltage, + .get_voltage = max8925_get_voltage, + .enable = max8925_enable, + .disable = max8925_disable, + .is_enabled = max8925_is_enabled, + .set_suspend_voltage = max8925_set_dvm_voltage, + .set_suspend_enable = max8925_set_dvm_enable, + .set_suspend_disable = max8925_set_dvm_disable, +}; + +static struct regulator_ops max8925_regulator_ldo_ops = { + .set_voltage = max8925_set_voltage, + .get_voltage = max8925_get_voltage, + .enable = max8925_enable, + .disable = max8925_disable, + .is_enabled = max8925_is_enabled, +}; + +#define MAX8925_SDV(_id, min, max, step) \ +{ \ + .desc = { \ + .name = "SDV" #_id, \ + .ops = &max8925_regulator_sdv_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MAX8925_ID_SD##_id, \ + .owner = THIS_MODULE, \ + }, \ + .min_uV = min * 1000, \ + .max_uV = max * 1000, \ + .step_uV = step * 1000, \ + .vol_reg = MAX8925_SDV##_id, \ + .vol_shift = 0, \ + .vol_nbits = 6, \ + .enable_reg = MAX8925_SDCTL##_id, \ + .enable_bit = 0, \ +} + +#define MAX8925_LDO(_id, min, max, step) \ +{ \ + .desc = { \ + .name = "LDO" #_id, \ + .ops = &max8925_regulator_ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MAX8925_ID_LDO##_id, \ + .owner = THIS_MODULE, \ + }, \ + .min_uV = min * 1000, \ + .max_uV = max * 1000, \ + .step_uV = step * 1000, \ + .vol_reg = MAX8925_LDOVOUT##_id, \ + .vol_shift = 0, \ + .vol_nbits = 6, \ + .enable_reg = MAX8925_LDOCTL##_id, \ + .enable_bit = 0, \ +} + +static struct max8925_regulator_info max8925_regulator_info[] = { + MAX8925_SDV(1, 637.5, 1425, 12.5), + MAX8925_SDV(2, 650, 2225, 25), + MAX8925_SDV(3, 750, 3900, 50), + + MAX8925_LDO(1, 750, 3900, 50), + MAX8925_LDO(2, 650, 2250, 25), + MAX8925_LDO(3, 650, 2250, 25), + MAX8925_LDO(4, 750, 3900, 50), + MAX8925_LDO(5, 750, 3900, 50), + MAX8925_LDO(6, 750, 3900, 50), + MAX8925_LDO(7, 750, 3900, 50), + MAX8925_LDO(8, 750, 3900, 50), + MAX8925_LDO(9, 750, 3900, 50), + MAX8925_LDO(10, 750, 3900, 50), + MAX8925_LDO(11, 750, 3900, 50), + MAX8925_LDO(12, 750, 3900, 50), + MAX8925_LDO(13, 750, 3900, 50), + MAX8925_LDO(14, 750, 3900, 50), + MAX8925_LDO(15, 750, 3900, 50), + MAX8925_LDO(16, 750, 3900, 50), + MAX8925_LDO(17, 650, 2250, 25), + MAX8925_LDO(18, 650, 2250, 25), + MAX8925_LDO(19, 750, 3900, 50), + MAX8925_LDO(20, 750, 3900, 50), +}; + +static struct max8925_regulator_info * __devinit find_regulator_info(int id) +{ + struct max8925_regulator_info *ri; + int i; + + for (i = 0; i < ARRAY_SIZE(max8925_regulator_info); i++) { + ri = &max8925_regulator_info[i]; + if (ri->desc.id == id) + return ri; + } + return NULL; +} + +static int __devinit max8925_regulator_probe(struct platform_device *pdev) +{ + struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); + struct max8925_platform_data *pdata = chip->dev->platform_data; + struct max8925_regulator_info *ri; + struct regulator_dev *rdev; + + ri = find_regulator_info(pdev->id); + if (ri == NULL) { + dev_err(&pdev->dev, "invalid regulator ID specified\n"); + return -EINVAL; + } + ri->i2c = chip->i2c; + ri->chip = chip; + + rdev = regulator_register(&ri->desc, &pdev->dev, + pdata->regulator[pdev->id], ri); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register regulator %s\n", + ri->desc.name); + return PTR_ERR(rdev); + } + + platform_set_drvdata(pdev, rdev); + return 0; +} + +static int __devexit max8925_regulator_remove(struct platform_device *pdev) +{ + struct regulator_dev *rdev = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + regulator_unregister(rdev); + + return 0; +} + +static struct platform_driver max8925_regulator_driver = { + .driver = { + .name = "max8925-regulator", + .owner = THIS_MODULE, + }, + .probe = max8925_regulator_probe, + .remove = __devexit_p(max8925_regulator_remove), +}; + +static int __init max8925_regulator_init(void) +{ + return platform_driver_register(&max8925_regulator_driver); +} +subsys_initcall(max8925_regulator_init); + +static void __exit max8925_regulator_exit(void) +{ + platform_driver_unregister(&max8925_regulator_driver); +} +module_exit(max8925_regulator_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); +MODULE_DESCRIPTION("Regulator Driver for Maxim 8925 PMIC"); +MODULE_ALIAS("platform:max8925-regulator"); + diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c index 39c49530004..f7b81845a19 100644 --- a/drivers/regulator/mc13783-regulator.c +++ b/drivers/regulator/mc13783-regulator.c @@ -2,6 +2,7 @@ * Regulator Driver for Freescale MC13783 PMIC * * Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> + * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -16,11 +17,44 @@ #include <linux/init.h> #include <linux/err.h> -#define MC13783_REG_SWITCHERS4 28 -#define MC13783_REG_SWITCHERS4_PLLEN (1 << 18) - #define MC13783_REG_SWITCHERS5 29 #define MC13783_REG_SWITCHERS5_SW3EN (1 << 20) +#define MC13783_REG_SWITCHERS5_SW3VSEL 18 +#define MC13783_REG_SWITCHERS5_SW3VSEL_M (3 << 18) + +#define MC13783_REG_REGULATORSETTING0 30 +#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL 2 +#define MC13783_REG_REGULATORSETTING0_VDIGVSEL 4 +#define MC13783_REG_REGULATORSETTING0_VGENVSEL 6 +#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL 9 +#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL 11 +#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL 13 +#define MC13783_REG_REGULATORSETTING0_VSIMVSEL 14 +#define MC13783_REG_REGULATORSETTING0_VESIMVSEL 15 +#define MC13783_REG_REGULATORSETTING0_VCAMVSEL 16 + +#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL_M (3 << 2) +#define MC13783_REG_REGULATORSETTING0_VDIGVSEL_M (3 << 4) +#define MC13783_REG_REGULATORSETTING0_VGENVSEL_M (7 << 6) +#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL_M (3 << 9) +#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL_M (3 << 11) +#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL_M (1 << 13) +#define MC13783_REG_REGULATORSETTING0_VSIMVSEL_M (1 << 14) +#define MC13783_REG_REGULATORSETTING0_VESIMVSEL_M (1 << 15) +#define MC13783_REG_REGULATORSETTING0_VCAMVSEL_M (7 << 16) + +#define MC13783_REG_REGULATORSETTING1 31 +#define MC13783_REG_REGULATORSETTING1_VVIBVSEL 0 +#define MC13783_REG_REGULATORSETTING1_VRF1VSEL 2 +#define MC13783_REG_REGULATORSETTING1_VRF2VSEL 4 +#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL 6 +#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL 9 + +#define MC13783_REG_REGULATORSETTING1_VVIBVSEL_M (3 << 0) +#define MC13783_REG_REGULATORSETTING1_VRF1VSEL_M (3 << 2) +#define MC13783_REG_REGULATORSETTING1_VRF2VSEL_M (3 << 4) +#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL_M (7 << 6) +#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL_M (7 << 9) #define MC13783_REG_REGULATORMODE0 32 #define MC13783_REG_REGULATORMODE0_VAUDIOEN (1 << 0) @@ -48,19 +82,107 @@ #define MC13783_REG_POWERMISC_GPO2EN (1 << 8) #define MC13783_REG_POWERMISC_GPO3EN (1 << 10) #define MC13783_REG_POWERMISC_GPO4EN (1 << 12) +#define MC13783_REG_POWERMISC_PWGT1SPIEN (1 << 15) +#define MC13783_REG_POWERMISC_PWGT2SPIEN (1 << 16) + +#define MC13783_REG_POWERMISC_PWGTSPI_M (3 << 15) + struct mc13783_regulator { struct regulator_desc desc; int reg; int enable_bit; + int vsel_reg; + int vsel_shift; + int vsel_mask; + int const *voltages; +}; + +/* Voltage Values */ +static const int const mc13783_sw3_val[] = { + 5000000, 5000000, 5000000, 5500000, +}; + +static const int const mc13783_vaudio_val[] = { + 2775000, +}; + +static const int const mc13783_viohi_val[] = { + 2775000, +}; + +static const int const mc13783_violo_val[] = { + 1200000, 1300000, 1500000, 1800000, +}; + +static const int const mc13783_vdig_val[] = { + 1200000, 1300000, 1500000, 1800000, +}; + +static const int const mc13783_vgen_val[] = { + 1200000, 1300000, 1500000, 1800000, + 1100000, 2000000, 2775000, 2400000, +}; + +static const int const mc13783_vrfdig_val[] = { + 1200000, 1500000, 1800000, 1875000, +}; + +static const int const mc13783_vrfref_val[] = { + 2475000, 2600000, 2700000, 2775000, +}; + +static const int const mc13783_vrfcp_val[] = { + 2700000, 2775000, +}; + +static const int const mc13783_vsim_val[] = { + 1800000, 2900000, 3000000, +}; + +static const int const mc13783_vesim_val[] = { + 1800000, 2900000, +}; + +static const int const mc13783_vcam_val[] = { + 1500000, 1800000, 2500000, 2550000, + 2600000, 2750000, 2800000, 3000000, +}; + +static const int const mc13783_vrfbg_val[] = { + 1250000, +}; + +static const int const mc13783_vvib_val[] = { + 1300000, 1800000, 2000000, 3000000, +}; + +static const int const mc13783_vmmc_val[] = { + 1600000, 1800000, 2000000, 2600000, + 2700000, 2800000, 2900000, 3000000, +}; + +static const int const mc13783_vrf_val[] = { + 1500000, 1875000, 2700000, 2775000, +}; + +static const int const mc13783_gpo_val[] = { + 3100000, +}; + +static const int const mc13783_pwgtdrv_val[] = { + 5500000, }; static struct regulator_ops mc13783_regulator_ops; +static struct regulator_ops mc13783_fixed_regulator_ops; +static struct regulator_ops mc13783_gpo_regulator_ops; -#define MC13783_DEFINE(prefix, _name, _reg) \ +#define MC13783_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages) \ [MC13783_ ## prefix ## _ ## _name] = { \ .desc = { \ .name = #prefix "_" #_name, \ + .n_voltages = ARRAY_SIZE(_voltages), \ .ops = &mc13783_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = MC13783_ ## prefix ## _ ## _name, \ @@ -68,40 +190,92 @@ static struct regulator_ops mc13783_regulator_ops; }, \ .reg = MC13783_REG_ ## _reg, \ .enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \ + .vsel_reg = MC13783_REG_ ## _vsel_reg, \ + .vsel_shift = MC13783_REG_ ## _vsel_reg ## _ ## _name ## VSEL,\ + .vsel_mask = MC13783_REG_ ## _vsel_reg ## _ ## _name ## VSEL_M,\ + .voltages = _voltages, \ + } + +#define MC13783_FIXED_DEFINE(prefix, _name, _reg, _voltages) \ + [MC13783_ ## prefix ## _ ## _name] = { \ + .desc = { \ + .name = #prefix "_" #_name, \ + .n_voltages = ARRAY_SIZE(_voltages), \ + .ops = &mc13783_fixed_regulator_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MC13783_ ## prefix ## _ ## _name, \ + .owner = THIS_MODULE, \ + }, \ + .reg = MC13783_REG_ ## _reg, \ + .enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \ + .voltages = _voltages, \ } -#define MC13783_DEFINE_SW(_name, _reg) MC13783_DEFINE(SW, _name, _reg) -#define MC13783_DEFINE_REGU(_name, _reg) MC13783_DEFINE(REGU, _name, _reg) +#define MC13783_GPO_DEFINE(prefix, _name, _reg, _voltages) \ + [MC13783_ ## prefix ## _ ## _name] = { \ + .desc = { \ + .name = #prefix "_" #_name, \ + .n_voltages = ARRAY_SIZE(_voltages), \ + .ops = &mc13783_gpo_regulator_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = MC13783_ ## prefix ## _ ## _name, \ + .owner = THIS_MODULE, \ + }, \ + .reg = MC13783_REG_ ## _reg, \ + .enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \ + .voltages = _voltages, \ + } + +#define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages) \ + MC13783_DEFINE(SW, _name, _reg, _vsel_reg, _voltages) +#define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages) \ + MC13783_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages) static struct mc13783_regulator mc13783_regulators[] = { - MC13783_DEFINE_SW(SW3, SWITCHERS5), - MC13783_DEFINE_SW(PLL, SWITCHERS4), - - MC13783_DEFINE_REGU(VAUDIO, REGULATORMODE0), - MC13783_DEFINE_REGU(VIOHI, REGULATORMODE0), - MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0), - MC13783_DEFINE_REGU(VDIG, REGULATORMODE0), - MC13783_DEFINE_REGU(VGEN, REGULATORMODE0), - MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0), - MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0), - MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0), - MC13783_DEFINE_REGU(VSIM, REGULATORMODE1), - MC13783_DEFINE_REGU(VESIM, REGULATORMODE1), - MC13783_DEFINE_REGU(VCAM, REGULATORMODE1), - MC13783_DEFINE_REGU(VRFBG, REGULATORMODE1), - MC13783_DEFINE_REGU(VVIB, REGULATORMODE1), - MC13783_DEFINE_REGU(VRF1, REGULATORMODE1), - MC13783_DEFINE_REGU(VRF2, REGULATORMODE1), - MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1), - MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1), - MC13783_DEFINE_REGU(GPO1, POWERMISC), - MC13783_DEFINE_REGU(GPO2, POWERMISC), - MC13783_DEFINE_REGU(GPO3, POWERMISC), - MC13783_DEFINE_REGU(GPO4, POWERMISC), + MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val), + + MC13783_FIXED_DEFINE(REGU, VAUDIO, REGULATORMODE0, mc13783_vaudio_val), + MC13783_FIXED_DEFINE(REGU, VIOHI, REGULATORMODE0, mc13783_viohi_val), + MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0, \ + mc13783_violo_val), + MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0, \ + mc13783_vdig_val), + MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0, \ + mc13783_vgen_val), + MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0, \ + mc13783_vrfdig_val), + MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0, \ + mc13783_vrfref_val), + MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0, \ + mc13783_vrfcp_val), + MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0, \ + mc13783_vsim_val), + MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0, \ + mc13783_vesim_val), + MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0, \ + mc13783_vcam_val), + MC13783_FIXED_DEFINE(REGU, VRFBG, REGULATORMODE1, mc13783_vrfbg_val), + MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1, \ + mc13783_vvib_val), + MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1, \ + mc13783_vrf_val), + MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1, \ + mc13783_vrf_val), + MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1, \ + mc13783_vmmc_val), + MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1, \ + mc13783_vmmc_val), + MC13783_GPO_DEFINE(REGU, GPO1, POWERMISC, mc13783_gpo_val), + MC13783_GPO_DEFINE(REGU, GPO2, POWERMISC, mc13783_gpo_val), + MC13783_GPO_DEFINE(REGU, GPO3, POWERMISC, mc13783_gpo_val), + MC13783_GPO_DEFINE(REGU, GPO4, POWERMISC, mc13783_gpo_val), + MC13783_GPO_DEFINE(REGU, PWGT1SPI, POWERMISC, mc13783_pwgtdrv_val), + MC13783_GPO_DEFINE(REGU, PWGT2SPI, POWERMISC, mc13783_pwgtdrv_val), }; struct mc13783_regulator_priv { struct mc13783 *mc13783; + u32 powermisc_pwgt_state; struct regulator_dev *regulators[]; }; @@ -154,10 +328,241 @@ static int mc13783_regulator_is_enabled(struct regulator_dev *rdev) return (val & mc13783_regulators[id].enable_bit) != 0; } +static int mc13783_regulator_list_voltage(struct regulator_dev *rdev, + unsigned selector) +{ + int id = rdev_get_id(rdev); + + if (selector >= mc13783_regulators[id].desc.n_voltages) + return -EINVAL; + + return mc13783_regulators[id].voltages[selector]; +} + +static int mc13783_get_best_voltage_index(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + int reg_id = rdev_get_id(rdev); + int i; + int bestmatch; + int bestindex; + + /* + * Locate the minimum voltage fitting the criteria on + * this regulator. The switchable voltages are not + * in strict falling order so we need to check them + * all for the best match. + */ + bestmatch = INT_MAX; + bestindex = -1; + for (i = 0; i < mc13783_regulators[reg_id].desc.n_voltages; i++) { + if (mc13783_regulators[reg_id].voltages[i] >= min_uV && + mc13783_regulators[reg_id].voltages[i] < bestmatch) { + bestmatch = mc13783_regulators[reg_id].voltages[i]; + bestindex = i; + } + } + + if (bestindex < 0 || bestmatch > max_uV) { + dev_warn(&rdev->dev, "no possible value for %d<=x<=%d uV\n", + min_uV, max_uV); + return -EINVAL; + } + return bestindex; +} + +static int mc13783_regulator_set_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev); + int value, id = rdev_get_id(rdev); + int ret; + + dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n", + __func__, id, min_uV, max_uV); + + /* Find the best index */ + value = mc13783_get_best_voltage_index(rdev, min_uV, max_uV); + dev_dbg(rdev_get_dev(rdev), "%s best value: %d \n", __func__, value); + if (value < 0) + return value; + + mc13783_lock(priv->mc13783); + ret = mc13783_reg_rmw(priv->mc13783, mc13783_regulators[id].vsel_reg, + mc13783_regulators[id].vsel_mask, + value << mc13783_regulators[id].vsel_shift); + mc13783_unlock(priv->mc13783); + + return ret; +} + +static int mc13783_regulator_get_voltage(struct regulator_dev *rdev) +{ + struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev); + int ret, id = rdev_get_id(rdev); + unsigned int val; + + dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); + + mc13783_lock(priv->mc13783); + ret = mc13783_reg_read(priv->mc13783, + mc13783_regulators[id].vsel_reg, &val); + mc13783_unlock(priv->mc13783); + + if (ret) + return ret; + + val = (val & mc13783_regulators[id].vsel_mask) + >> mc13783_regulators[id].vsel_shift; + + dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val); + + BUG_ON(val < 0 || val > mc13783_regulators[id].desc.n_voltages); + + return mc13783_regulators[id].voltages[val]; +} + static struct regulator_ops mc13783_regulator_ops = { .enable = mc13783_regulator_enable, .disable = mc13783_regulator_disable, .is_enabled = mc13783_regulator_is_enabled, + .list_voltage = mc13783_regulator_list_voltage, + .set_voltage = mc13783_regulator_set_voltage, + .get_voltage = mc13783_regulator_get_voltage, +}; + +static int mc13783_fixed_regulator_set_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + int id = rdev_get_id(rdev); + + dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n", + __func__, id, min_uV, max_uV); + + if (min_uV > mc13783_regulators[id].voltages[0] && + max_uV < mc13783_regulators[id].voltages[0]) + return 0; + else + return -EINVAL; +} + +static int mc13783_fixed_regulator_get_voltage(struct regulator_dev *rdev) +{ + int id = rdev_get_id(rdev); + + dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); + + return mc13783_regulators[id].voltages[0]; +} + +static struct regulator_ops mc13783_fixed_regulator_ops = { + .enable = mc13783_regulator_enable, + .disable = mc13783_regulator_disable, + .is_enabled = mc13783_regulator_is_enabled, + .list_voltage = mc13783_regulator_list_voltage, + .set_voltage = mc13783_fixed_regulator_set_voltage, + .get_voltage = mc13783_fixed_regulator_get_voltage, +}; + +int mc13783_powermisc_rmw(struct mc13783_regulator_priv *priv, u32 mask, + u32 val) +{ + struct mc13783 *mc13783 = priv->mc13783; + int ret; + u32 valread; + + BUG_ON(val & ~mask); + + ret = mc13783_reg_read(mc13783, MC13783_REG_POWERMISC, &valread); + if (ret) + return ret; + + /* Update the stored state for Power Gates. */ + priv->powermisc_pwgt_state = + (priv->powermisc_pwgt_state & ~mask) | val; + priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M; + + /* Construct the new register value */ + valread = (valread & ~mask) | val; + /* Overwrite the PWGTxEN with the stored version */ + valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) | + priv->powermisc_pwgt_state; + + return mc13783_reg_write(mc13783, MC13783_REG_POWERMISC, valread); +} + +static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev) +{ + struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + int ret; + u32 en_val = mc13783_regulators[id].enable_bit; + + dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); + + /* Power Gate enable value is 0 */ + if (id == MC13783_REGU_PWGT1SPI || + id == MC13783_REGU_PWGT2SPI) + en_val = 0; + + mc13783_lock(priv->mc13783); + ret = mc13783_powermisc_rmw(priv, mc13783_regulators[id].enable_bit, + en_val); + mc13783_unlock(priv->mc13783); + + return ret; +} + +static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev) +{ + struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + int ret; + u32 dis_val = 0; + + dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); + + /* Power Gate disable value is 1 */ + if (id == MC13783_REGU_PWGT1SPI || + id == MC13783_REGU_PWGT2SPI) + dis_val = mc13783_regulators[id].enable_bit; + + mc13783_lock(priv->mc13783); + ret = mc13783_powermisc_rmw(priv, mc13783_regulators[id].enable_bit, + dis_val); + mc13783_unlock(priv->mc13783); + + return ret; +} + +static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev) +{ + struct mc13783_regulator_priv *priv = rdev_get_drvdata(rdev); + int ret, id = rdev_get_id(rdev); + unsigned int val; + + mc13783_lock(priv->mc13783); + ret = mc13783_reg_read(priv->mc13783, mc13783_regulators[id].reg, &val); + mc13783_unlock(priv->mc13783); + + if (ret) + return ret; + + /* Power Gates state is stored in powermisc_pwgt_state + * where the meaning of bits is negated */ + val = (val & ~MC13783_REG_POWERMISC_PWGTSPI_M) | + (priv->powermisc_pwgt_state ^ MC13783_REG_POWERMISC_PWGTSPI_M); + + return (val & mc13783_regulators[id].enable_bit) != 0; +} + +static struct regulator_ops mc13783_gpo_regulator_ops = { + .enable = mc13783_gpo_regulator_enable, + .disable = mc13783_gpo_regulator_disable, + .is_enabled = mc13783_gpo_regulator_is_enabled, + .list_voltage = mc13783_regulator_list_voltage, + .set_voltage = mc13783_fixed_regulator_set_voltage, + .get_voltage = mc13783_fixed_regulator_get_voltage, }; static int __devinit mc13783_regulator_probe(struct platform_device *pdev) diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c index 33d7d899e03..29d0566379a 100644 --- a/drivers/regulator/pcap-regulator.c +++ b/drivers/regulator/pcap-regulator.c @@ -288,16 +288,18 @@ static int __devexit pcap_regulator_remove(struct platform_device *pdev) struct regulator_dev *rdev = platform_get_drvdata(pdev); regulator_unregister(rdev); + platform_set_drvdata(pdev, NULL); return 0; } static struct platform_driver pcap_regulator_driver = { .driver = { - .name = "pcap-regulator", + .name = "pcap-regulator", + .owner = THIS_MODULE, }, - .probe = pcap_regulator_probe, - .remove = __devexit_p(pcap_regulator_remove), + .probe = pcap_regulator_probe, + .remove = __devexit_p(pcap_regulator_remove), }; static int __init pcap_regulator_init(void) diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index 07fda0a75ad..1f183543bdb 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -457,8 +457,8 @@ static struct regulator_ops tps65023_ldo_ops = { .list_voltage = tps65023_ldo_list_voltage, }; -static -int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id) +static int __devinit tps_65023_probe(struct i2c_client *client, + const struct i2c_device_id *id) { static int desc_id; const struct tps_info *info = (void *)id->driver_data; @@ -466,6 +466,7 @@ int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id) struct regulator_dev *rdev; struct tps_pmic *tps; int i; + int error; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO; @@ -475,7 +476,6 @@ int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id) * coming from the board-evm file. */ init_data = client->dev.platform_data; - if (!init_data) return -EIO; @@ -502,21 +502,12 @@ int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id) /* Register the regulators */ rdev = regulator_register(&tps->desc[i], &client->dev, - init_data, tps); + init_data, tps); if (IS_ERR(rdev)) { dev_err(&client->dev, "failed to register %s\n", id->name); - - /* Unregister */ - while (i) - regulator_unregister(tps->rdev[--i]); - - tps->client = NULL; - - /* clear the client data in i2c */ - i2c_set_clientdata(client, NULL); - kfree(tps); - return PTR_ERR(rdev); + error = PTR_ERR(rdev); + goto fail; } /* Save regulator for cleanup */ @@ -526,6 +517,13 @@ int tps_65023_probe(struct i2c_client *client, const struct i2c_device_id *id) i2c_set_clientdata(client, tps); return 0; + + fail: + while (--i >= 0) + regulator_unregister(tps->rdev[i]); + + kfree(tps); + return error; } /** @@ -539,13 +537,12 @@ static int __devexit tps_65023_remove(struct i2c_client *client) struct tps_pmic *tps = i2c_get_clientdata(client); int i; + /* clear the client data in i2c */ + i2c_set_clientdata(client, NULL); + for (i = 0; i < TPS65023_NUM_REGULATOR; i++) regulator_unregister(tps->rdev[i]); - tps->client = NULL; - - /* clear the client data in i2c */ - i2c_set_clientdata(client, NULL); kfree(tps); return 0; diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index f8a6dfbef75..c2a9539acd7 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -538,8 +538,8 @@ static struct regulator_ops tps6507x_ldo_ops = { .list_voltage = tps6507x_ldo_list_voltage, }; -static -int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id) +static int __devinit tps_6507x_probe(struct i2c_client *client, + const struct i2c_device_id *id) { static int desc_id; const struct tps_info *info = (void *)id->driver_data; @@ -547,6 +547,7 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id) struct regulator_dev *rdev; struct tps_pmic *tps; int i; + int error; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) @@ -557,7 +558,6 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id) * coming from the board-evm file. */ init_data = client->dev.platform_data; - if (!init_data) return -EIO; @@ -586,18 +586,8 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id) if (IS_ERR(rdev)) { dev_err(&client->dev, "failed to register %s\n", id->name); - - /* Unregister */ - while (i) - regulator_unregister(tps->rdev[--i]); - - tps->client = NULL; - - /* clear the client data in i2c */ - i2c_set_clientdata(client, NULL); - - kfree(tps); - return PTR_ERR(rdev); + error = PTR_ERR(rdev); + goto fail; } /* Save regulator for cleanup */ @@ -607,6 +597,13 @@ int tps_6507x_probe(struct i2c_client *client, const struct i2c_device_id *id) i2c_set_clientdata(client, tps); return 0; + +fail: + while (--i >= 0) + regulator_unregister(tps->rdev[i]); + + kfree(tps); + return error; } /** @@ -620,13 +617,12 @@ static int __devexit tps_6507x_remove(struct i2c_client *client) struct tps_pmic *tps = i2c_get_clientdata(client); int i; + /* clear the client data in i2c */ + i2c_set_clientdata(client, NULL); + for (i = 0; i < TPS6507X_NUM_REGULATOR; i++) regulator_unregister(tps->rdev[i]); - tps->client = NULL; - - /* clear the client data in i2c */ - i2c_set_clientdata(client, NULL); kfree(tps); return 0; diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index 7e674859bd5..9729d760fb4 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -519,19 +519,19 @@ static struct twlreg_info twl_regs[] = { /* 6030 REG with base as PMC Slave Misc : 0x0030 */ /* Turnon-delay and remap configuration values for 6030 are not verified since the specification is not public */ - TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1, 0, 0x08), - TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 2, 0, 0x08), - TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 3, 0, 0x08), - TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 4, 0, 0x08), - TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 5, 0, 0x08), - TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 7, 0, 0x08), - TWL6030_FIXED_LDO(VANA, 0x50, 2100, 15, 0, 0x08), - TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 16, 0, 0x08), - TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 17, 0, 0x08), - TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 18, 0, 0x08) + TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1, 0, 0x21), + TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 2, 0, 0x21), + TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 3, 0, 0x21), + TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 4, 0, 0x21), + TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 5, 0, 0x21), + TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 7, 0, 0x21), + TWL6030_FIXED_LDO(VANA, 0x50, 2100, 15, 0, 0x21), + TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 16, 0, 0x21), + TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 17, 0, 0x21), + TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 18, 0, 0x21) }; -static int twlreg_probe(struct platform_device *pdev) +static int __devinit twlreg_probe(struct platform_device *pdev) { int i; struct twlreg_info *info; diff --git a/drivers/regulator/virtual.c b/drivers/regulator/virtual.c index addc032c84b..d96cecaac73 100644 --- a/drivers/regulator/virtual.c +++ b/drivers/regulator/virtual.c @@ -19,7 +19,7 @@ struct virtual_consumer_data { struct mutex lock; struct regulator *regulator; - int enabled; + bool enabled; int min_uV; int max_uV; int min_uA; @@ -49,7 +49,7 @@ static void update_voltage_constraints(struct device *dev, dev_dbg(dev, "Enabling regulator\n"); ret = regulator_enable(data->regulator); if (ret == 0) - data->enabled = 1; + data->enabled = true; else dev_err(dev, "regulator_enable() failed: %d\n", ret); @@ -59,7 +59,7 @@ static void update_voltage_constraints(struct device *dev, dev_dbg(dev, "Disabling regulator\n"); ret = regulator_disable(data->regulator); if (ret == 0) - data->enabled = 0; + data->enabled = false; else dev_err(dev, "regulator_disable() failed: %d\n", ret); @@ -89,7 +89,7 @@ static void update_current_limit_constraints(struct device *dev, dev_dbg(dev, "Enabling regulator\n"); ret = regulator_enable(data->regulator); if (ret == 0) - data->enabled = 1; + data->enabled = true; else dev_err(dev, "regulator_enable() failed: %d\n", ret); @@ -99,7 +99,7 @@ static void update_current_limit_constraints(struct device *dev, dev_dbg(dev, "Disabling regulator\n"); ret = regulator_disable(data->regulator); if (ret == 0) - data->enabled = 0; + data->enabled = false; else dev_err(dev, "regulator_disable() failed: %d\n", ret); @@ -270,24 +270,28 @@ static DEVICE_ATTR(min_microamps, 0666, show_min_uA, set_min_uA); static DEVICE_ATTR(max_microamps, 0666, show_max_uA, set_max_uA); static DEVICE_ATTR(mode, 0666, show_mode, set_mode); -static struct device_attribute *attributes[] = { - &dev_attr_min_microvolts, - &dev_attr_max_microvolts, - &dev_attr_min_microamps, - &dev_attr_max_microamps, - &dev_attr_mode, +static struct attribute *regulator_virtual_attributes[] = { + &dev_attr_min_microvolts.attr, + &dev_attr_max_microvolts.attr, + &dev_attr_min_microamps.attr, + &dev_attr_max_microamps.attr, + &dev_attr_mode.attr, + NULL }; -static int regulator_virtual_consumer_probe(struct platform_device *pdev) +static const struct attribute_group regulator_virtual_attr_group = { + .attrs = regulator_virtual_attributes, +}; + +static int __devinit regulator_virtual_probe(struct platform_device *pdev) { char *reg_id = pdev->dev.platform_data; struct virtual_consumer_data *drvdata; - int ret, i; + int ret; drvdata = kzalloc(sizeof(struct virtual_consumer_data), GFP_KERNEL); - if (drvdata == NULL) { + if (drvdata == NULL) return -ENOMEM; - } mutex_init(&drvdata->lock); @@ -299,13 +303,12 @@ static int regulator_virtual_consumer_probe(struct platform_device *pdev) goto err; } - for (i = 0; i < ARRAY_SIZE(attributes); i++) { - ret = device_create_file(&pdev->dev, attributes[i]); - if (ret != 0) { - dev_err(&pdev->dev, "Failed to create attr %d: %d\n", - i, ret); - goto err_regulator; - } + ret = sysfs_create_group(&pdev->dev.kobj, + ®ulator_virtual_attr_group); + if (ret != 0) { + dev_err(&pdev->dev, + "Failed to create attribute group: %d\n", ret); + goto err_regulator; } drvdata->mode = regulator_get_mode(drvdata->regulator); @@ -317,37 +320,36 @@ static int regulator_virtual_consumer_probe(struct platform_device *pdev) err_regulator: regulator_put(drvdata->regulator); err: - for (i = 0; i < ARRAY_SIZE(attributes); i++) - device_remove_file(&pdev->dev, attributes[i]); kfree(drvdata); return ret; } -static int regulator_virtual_consumer_remove(struct platform_device *pdev) +static int __devexit regulator_virtual_remove(struct platform_device *pdev) { struct virtual_consumer_data *drvdata = platform_get_drvdata(pdev); - int i; - for (i = 0; i < ARRAY_SIZE(attributes); i++) - device_remove_file(&pdev->dev, attributes[i]); + sysfs_remove_group(&pdev->dev.kobj, ®ulator_virtual_attr_group); + if (drvdata->enabled) regulator_disable(drvdata->regulator); regulator_put(drvdata->regulator); kfree(drvdata); + platform_set_drvdata(pdev, NULL); + return 0; } static struct platform_driver regulator_virtual_consumer_driver = { - .probe = regulator_virtual_consumer_probe, - .remove = regulator_virtual_consumer_remove, + .probe = regulator_virtual_probe, + .remove = __devexit_p(regulator_virtual_remove), .driver = { .name = "reg-virt-consumer", + .owner = THIS_MODULE, }, }; - static int __init regulator_virtual_consumer_init(void) { return platform_driver_register(®ulator_virtual_consumer_driver); diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index 0a6577577e8..6e18e56d850 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -600,6 +600,8 @@ static __devexit int wm831x_buckv_remove(struct platform_device *pdev) struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev); struct wm831x *wm831x = dcdc->wm831x; + platform_set_drvdata(pdev, NULL); + wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "HC"), dcdc); wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc); regulator_unregister(dcdc->regulator); @@ -615,6 +617,7 @@ static struct platform_driver wm831x_buckv_driver = { .remove = __devexit_p(wm831x_buckv_remove), .driver = { .name = "wm831x-buckv", + .owner = THIS_MODULE, }, }; @@ -769,6 +772,8 @@ static __devexit int wm831x_buckp_remove(struct platform_device *pdev) struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev); struct wm831x *wm831x = dcdc->wm831x; + platform_set_drvdata(pdev, NULL); + wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc); regulator_unregister(dcdc->regulator); kfree(dcdc); @@ -781,6 +786,7 @@ static struct platform_driver wm831x_buckp_driver = { .remove = __devexit_p(wm831x_buckp_remove), .driver = { .name = "wm831x-buckp", + .owner = THIS_MODULE, }, }; @@ -895,6 +901,8 @@ static __devexit int wm831x_boostp_remove(struct platform_device *pdev) struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev); struct wm831x *wm831x = dcdc->wm831x; + platform_set_drvdata(pdev, NULL); + wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc); regulator_unregister(dcdc->regulator); kfree(dcdc); @@ -907,6 +915,7 @@ static struct platform_driver wm831x_boostp_driver = { .remove = __devexit_p(wm831x_boostp_remove), .driver = { .name = "wm831x-boostp", + .owner = THIS_MODULE, }, }; @@ -979,6 +988,8 @@ static __devexit int wm831x_epe_remove(struct platform_device *pdev) { struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev); + platform_set_drvdata(pdev, NULL); + regulator_unregister(dcdc->regulator); kfree(dcdc); @@ -990,6 +1001,7 @@ static struct platform_driver wm831x_epe_driver = { .remove = __devexit_p(wm831x_epe_remove), .driver = { .name = "wm831x-epe", + .owner = THIS_MODULE, }, }; diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c index 48857008758..ca0f6b6c384 100644 --- a/drivers/regulator/wm831x-isink.c +++ b/drivers/regulator/wm831x-isink.c @@ -222,6 +222,8 @@ static __devexit int wm831x_isink_remove(struct platform_device *pdev) struct wm831x_isink *isink = platform_get_drvdata(pdev); struct wm831x *wm831x = isink->wm831x; + platform_set_drvdata(pdev, NULL); + wm831x_free_irq(wm831x, platform_get_irq(pdev, 0), isink); regulator_unregister(isink->regulator); @@ -235,6 +237,7 @@ static struct platform_driver wm831x_isink_driver = { .remove = __devexit_p(wm831x_isink_remove), .driver = { .name = "wm831x-isink", + .owner = THIS_MODULE, }, }; diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index 61e02ac2fda..d2406c1519a 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -371,6 +371,8 @@ static __devexit int wm831x_gp_ldo_remove(struct platform_device *pdev) struct wm831x_ldo *ldo = platform_get_drvdata(pdev); struct wm831x *wm831x = ldo->wm831x; + platform_set_drvdata(pdev, NULL); + wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), ldo); regulator_unregister(ldo->regulator); kfree(ldo); @@ -383,6 +385,7 @@ static struct platform_driver wm831x_gp_ldo_driver = { .remove = __devexit_p(wm831x_gp_ldo_remove), .driver = { .name = "wm831x-ldo", + .owner = THIS_MODULE, }, }; @@ -640,6 +643,7 @@ static struct platform_driver wm831x_aldo_driver = { .remove = __devexit_p(wm831x_aldo_remove), .driver = { .name = "wm831x-aldo", + .owner = THIS_MODULE, }, }; @@ -811,6 +815,7 @@ static struct platform_driver wm831x_alive_ldo_driver = { .remove = __devexit_p(wm831x_alive_ldo_remove), .driver = { .name = "wm831x-alive-ldo", + .owner = THIS_MODULE, }, }; diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index e7b89e704af..723cd1fb486 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -290,6 +290,51 @@ static int wm8350_isink_is_enabled(struct regulator_dev *rdev) return -EINVAL; } +static int wm8350_isink_enable_time(struct regulator_dev *rdev) +{ + struct wm8350 *wm8350 = rdev_get_drvdata(rdev); + int isink = rdev_get_id(rdev); + int reg; + + switch (isink) { + case WM8350_ISINK_A: + reg = wm8350_reg_read(wm8350, WM8350_CSA_FLASH_CONTROL); + break; + case WM8350_ISINK_B: + reg = wm8350_reg_read(wm8350, WM8350_CSB_FLASH_CONTROL); + break; + default: + return -EINVAL; + } + + if (reg & WM8350_CS1_FLASH_MODE) { + switch (reg & WM8350_CS1_ON_RAMP_MASK) { + case 0: + return 0; + case 1: + return 1950; + case 2: + return 3910; + case 3: + return 7800; + } + } else { + switch (reg & WM8350_CS1_ON_RAMP_MASK) { + case 0: + return 0; + case 1: + return 250000; + case 2: + return 500000; + case 3: + return 1000000; + } + } + + return -EINVAL; +} + + int wm8350_isink_set_flash(struct wm8350 *wm8350, int isink, u16 mode, u16 trigger, u16 duration, u16 on_ramp, u16 off_ramp, u16 drive) @@ -1221,6 +1266,7 @@ static struct regulator_ops wm8350_isink_ops = { .enable = wm8350_isink_enable, .disable = wm8350_isink_disable, .is_enabled = wm8350_isink_is_enabled, + .enable_time = wm8350_isink_enable_time, }; static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { @@ -1407,7 +1453,7 @@ static int wm8350_regulator_remove(struct platform_device *pdev) struct regulator_dev *rdev = platform_get_drvdata(pdev); struct wm8350 *wm8350 = rdev_get_drvdata(rdev); - wm8350_free_irq(wm8350, wm8350_reg[pdev->id].irq); + wm8350_free_irq(wm8350, wm8350_reg[pdev->id].irq, rdev); regulator_unregister(rdev); diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c index d9a2c988c6e..924c7eb29ee 100644 --- a/drivers/regulator/wm8400-regulator.c +++ b/drivers/regulator/wm8400-regulator.c @@ -317,14 +317,17 @@ static struct regulator_desc regulators[] = { static int __devinit wm8400_regulator_probe(struct platform_device *pdev) { + struct wm8400 *wm8400 = container_of(pdev, struct wm8400, regulators[pdev->id]); struct regulator_dev *rdev; rdev = regulator_register(®ulators[pdev->id], &pdev->dev, - pdev->dev.platform_data, dev_get_drvdata(&pdev->dev)); + pdev->dev.platform_data, wm8400); if (IS_ERR(rdev)) return PTR_ERR(rdev); + platform_set_drvdata(pdev, rdev); + return 0; } @@ -332,6 +335,7 @@ static int __devexit wm8400_regulator_remove(struct platform_device *pdev) { struct regulator_dev *rdev = platform_get_drvdata(pdev); + platform_set_drvdata(pdev, NULL); regulator_unregister(rdev); return 0; @@ -370,7 +374,6 @@ int wm8400_register_regulator(struct device *dev, int reg, wm8400->regulators[reg].id = reg; wm8400->regulators[reg].dev.parent = dev; wm8400->regulators[reg].dev.platform_data = initdata; - dev_set_drvdata(&wm8400->regulators[reg].dev, wm8400); return platform_device_register(&wm8400->regulators[reg]); } diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c new file mode 100644 index 00000000000..95454a4637b --- /dev/null +++ b/drivers/regulator/wm8994-regulator.c @@ -0,0 +1,307 @@ +/* + * wm8994-regulator.c -- Regulator driver for the WM8994 + * + * Copyright 2009 Wolfson Microelectronics PLC. + * + * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + * + * 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. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/bitops.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/gpio.h> + +#include <linux/mfd/wm8994/core.h> +#include <linux/mfd/wm8994/registers.h> +#include <linux/mfd/wm8994/pdata.h> + +struct wm8994_ldo { + int enable; + bool is_enabled; + struct regulator_dev *regulator; + struct wm8994 *wm8994; +}; + +#define WM8994_LDO1_MAX_SELECTOR 0x7 +#define WM8994_LDO2_MAX_SELECTOR 0x3 + +static int wm8994_ldo_enable(struct regulator_dev *rdev) +{ + struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); + + /* If we have no soft control assume that the LDO is always enabled. */ + if (!ldo->enable) + return 0; + + gpio_set_value(ldo->enable, 1); + ldo->is_enabled = true; + + return 0; +} + +static int wm8994_ldo_disable(struct regulator_dev *rdev) +{ + struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); + + /* If we have no soft control assume that the LDO is always enabled. */ + if (!ldo->enable) + return -EINVAL; + + gpio_set_value(ldo->enable, 0); + ldo->is_enabled = false; + + return 0; +} + +static int wm8994_ldo_is_enabled(struct regulator_dev *rdev) +{ + struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); + + return ldo->is_enabled; +} + +static int wm8994_ldo_enable_time(struct regulator_dev *rdev) +{ + /* 3ms is fairly conservative but this shouldn't be too performance + * critical; can be tweaked per-system if required. */ + return 3000; +} + +static int wm8994_ldo1_list_voltage(struct regulator_dev *rdev, + unsigned int selector) +{ + if (selector > WM8994_LDO1_MAX_SELECTOR) + return -EINVAL; + + return (selector * 100000) + 2400000; +} + +static int wm8994_ldo1_get_voltage(struct regulator_dev *rdev) +{ + struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); + int val; + + val = wm8994_reg_read(ldo->wm8994, WM8994_LDO_1); + if (val < 0) + return val; + + val = (val & WM8994_LDO1_VSEL_MASK) >> WM8994_LDO1_VSEL_SHIFT; + + return wm8994_ldo1_list_voltage(rdev, val); +} + +static int wm8994_ldo1_set_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); + int selector, v; + + selector = (min_uV - 2400000) / 100000; + v = wm8994_ldo1_list_voltage(rdev, selector); + if (v < 0 || v > max_uV) + return -EINVAL; + + selector <<= WM8994_LDO1_VSEL_SHIFT; + + return wm8994_set_bits(ldo->wm8994, WM8994_LDO_1, + WM8994_LDO1_VSEL_MASK, selector); +} + +static struct regulator_ops wm8994_ldo1_ops = { + .enable = wm8994_ldo_enable, + .disable = wm8994_ldo_disable, + .is_enabled = wm8994_ldo_is_enabled, + .enable_time = wm8994_ldo_enable_time, + + .list_voltage = wm8994_ldo1_list_voltage, + .get_voltage = wm8994_ldo1_get_voltage, + .set_voltage = wm8994_ldo1_set_voltage, +}; + +static int wm8994_ldo2_list_voltage(struct regulator_dev *rdev, + unsigned int selector) +{ + if (selector > WM8994_LDO2_MAX_SELECTOR) + return -EINVAL; + + return (selector * 100000) + 900000; +} + +static int wm8994_ldo2_get_voltage(struct regulator_dev *rdev) +{ + struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); + int val; + + val = wm8994_reg_read(ldo->wm8994, WM8994_LDO_2); + if (val < 0) + return val; + + val = (val & WM8994_LDO2_VSEL_MASK) >> WM8994_LDO2_VSEL_SHIFT; + + return wm8994_ldo2_list_voltage(rdev, val); +} + +static int wm8994_ldo2_set_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV) +{ + struct wm8994_ldo *ldo = rdev_get_drvdata(rdev); + int selector, v; + + selector = (min_uV - 900000) / 100000; + v = wm8994_ldo2_list_voltage(rdev, selector); + if (v < 0 || v > max_uV) + return -EINVAL; + + selector <<= WM8994_LDO2_VSEL_SHIFT; + + return wm8994_set_bits(ldo->wm8994, WM8994_LDO_2, + WM8994_LDO2_VSEL_MASK, selector); +} + +static struct regulator_ops wm8994_ldo2_ops = { + .enable = wm8994_ldo_enable, + .disable = wm8994_ldo_disable, + .is_enabled = wm8994_ldo_is_enabled, + .enable_time = wm8994_ldo_enable_time, + + .list_voltage = wm8994_ldo2_list_voltage, + .get_voltage = wm8994_ldo2_get_voltage, + .set_voltage = wm8994_ldo2_set_voltage, +}; + +static struct regulator_desc wm8994_ldo_desc[] = { + { + .name = "LDO1", + .id = 1, + .type = REGULATOR_VOLTAGE, + .n_voltages = WM8994_LDO1_MAX_SELECTOR + 1, + .ops = &wm8994_ldo1_ops, + .owner = THIS_MODULE, + }, + { + .name = "LDO2", + .id = 2, + .type = REGULATOR_VOLTAGE, + .n_voltages = WM8994_LDO2_MAX_SELECTOR + 1, + .ops = &wm8994_ldo2_ops, + .owner = THIS_MODULE, + }, +}; + +static __devinit int wm8994_ldo_probe(struct platform_device *pdev) +{ + struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent); + struct wm8994_pdata *pdata = wm8994->dev->platform_data; + int id = pdev->id % ARRAY_SIZE(pdata->ldo); + struct wm8994_ldo *ldo; + int ret; + + dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1); + + if (!pdata) + return -ENODEV; + + ldo = kzalloc(sizeof(struct wm8994_ldo), GFP_KERNEL); + if (ldo == NULL) { + dev_err(&pdev->dev, "Unable to allocate private data\n"); + return -ENOMEM; + } + + ldo->wm8994 = wm8994; + + ldo->is_enabled = true; + + if (pdata->ldo[id].enable && gpio_is_valid(pdata->ldo[id].enable)) { + ldo->enable = pdata->ldo[id].enable; + + ret = gpio_request(ldo->enable, "WM8994 LDO enable"); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to get enable GPIO: %d\n", + ret); + goto err; + } + + ret = gpio_direction_output(ldo->enable, ldo->is_enabled); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to set GPIO up: %d\n", + ret); + goto err_gpio; + } + } + + ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &pdev->dev, + pdata->ldo[id].init_data, ldo); + if (IS_ERR(ldo->regulator)) { + ret = PTR_ERR(ldo->regulator); + dev_err(wm8994->dev, "Failed to register LDO%d: %d\n", + id + 1, ret); + goto err_gpio; + } + + platform_set_drvdata(pdev, ldo); + + return 0; + +err_gpio: + if (gpio_is_valid(ldo->enable)) + gpio_free(ldo->enable); +err: + kfree(ldo); + return ret; +} + +static __devexit int wm8994_ldo_remove(struct platform_device *pdev) +{ + struct wm8994_ldo *ldo = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + + regulator_unregister(ldo->regulator); + if (gpio_is_valid(ldo->enable)) + gpio_free(ldo->enable); + kfree(ldo); + + return 0; +} + +static struct platform_driver wm8994_ldo_driver = { + .probe = wm8994_ldo_probe, + .remove = __devexit_p(wm8994_ldo_remove), + .driver = { + .name = "wm8994-ldo", + .owner = THIS_MODULE, + }, +}; + +static int __init wm8994_ldo_init(void) +{ + int ret; + + ret = platform_driver_register(&wm8994_ldo_driver); + if (ret != 0) + pr_err("Failed to register Wm8994 GP LDO driver: %d\n", ret); + + return ret; +} +subsys_initcall(wm8994_ldo_init); + +static void __exit wm8994_ldo_exit(void) +{ + platform_driver_unregister(&wm8994_ldo_driver); +} +module_exit(wm8994_ldo_exit); + +/* Module information */ +MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); +MODULE_DESCRIPTION("WM8994 LDO driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:wm8994-ldo"); |