diff options
author | Haojian Zhuang <haojian.zhuang@marvell.com> | 2010-01-08 17:43:29 (GMT) |
---|---|---|
committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-03-07 21:17:07 (GMT) |
commit | 1ad998934e9c6cbae91662a05e0cb8772b1f4f75 (patch) | |
tree | 91ad77823b13b805c2ee3e5915aec46872d38170 | |
parent | d50f8f339f6901fccc9d4292b65ce8b69d7413d4 (diff) | |
download | linux-fsl-qoriq-1ad998934e9c6cbae91662a05e0cb8772b1f4f75.tar.xz |
mfd: Add subdevs in max8925
Add subdevs in MAX8925. MAX8925 includes regulator, backlight and touch
components.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
-rw-r--r-- | drivers/mfd/Kconfig | 1 | ||||
-rw-r--r-- | drivers/mfd/max8925-core.c | 142 | ||||
-rw-r--r-- | include/linux/mfd/max8925.h | 96 |
3 files changed, 239 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index ee416ee..d63ab2e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -197,6 +197,7 @@ config PMIC_ADP5520 config MFD_MAX8925 tristate "Maxim Semiconductor MAX8925 PMIC Support" depends on I2C + select MFD_CORE help Say yes here to support for Maxim Semiconductor MAX8925. This is a Power Management IC. This driver provies common support for diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c index 3e26267..f36c494 100644 --- a/drivers/mfd/max8925-core.c +++ b/drivers/mfd/max8925-core.c @@ -20,6 +20,109 @@ #define IRQ_MODE_STATUS 0 #define IRQ_MODE_MASK 1 +static struct resource backlight_resources[] = { + { + .name = "max8925-backlight", + .start = MAX8925_WLED_MODE_CNTL, + .end = MAX8925_WLED_CNTL, + .flags = IORESOURCE_IO, + }, +}; + +static struct mfd_cell backlight_devs[] = { + { + .name = "max8925-backlight", + .num_resources = 1, + .resources = &backlight_resources[0], + .id = -1, + }, +}; + +static struct resource touch_resources[] = { + { + .name = "max8925-tsc", + .start = MAX8925_TSC_IRQ, + .end = MAX8925_ADC_RES_END, + .flags = IORESOURCE_IO, + }, +}; + +static struct mfd_cell touch_devs[] = { + { + .name = "max8925-touch", + .num_resources = 1, + .resources = &touch_resources[0], + .id = -1, + }, +}; + +#define MAX8925_REG_RESOURCE(_start, _end) \ +{ \ + .start = MAX8925_##_start, \ + .end = MAX8925_##_end, \ + .flags = IORESOURCE_IO, \ +} + +static struct resource regulator_resources[] = { + MAX8925_REG_RESOURCE(SDCTL1, SDCTL1), + MAX8925_REG_RESOURCE(SDCTL2, SDCTL2), + MAX8925_REG_RESOURCE(SDCTL3, SDCTL3), + MAX8925_REG_RESOURCE(LDOCTL1, LDOCTL1), + MAX8925_REG_RESOURCE(LDOCTL2, LDOCTL2), + MAX8925_REG_RESOURCE(LDOCTL3, LDOCTL3), + MAX8925_REG_RESOURCE(LDOCTL4, LDOCTL4), + MAX8925_REG_RESOURCE(LDOCTL5, LDOCTL5), + MAX8925_REG_RESOURCE(LDOCTL6, LDOCTL6), + MAX8925_REG_RESOURCE(LDOCTL7, LDOCTL7), + MAX8925_REG_RESOURCE(LDOCTL8, LDOCTL8), + MAX8925_REG_RESOURCE(LDOCTL9, LDOCTL9), + MAX8925_REG_RESOURCE(LDOCTL10, LDOCTL10), + MAX8925_REG_RESOURCE(LDOCTL11, LDOCTL11), + MAX8925_REG_RESOURCE(LDOCTL12, LDOCTL12), + MAX8925_REG_RESOURCE(LDOCTL13, LDOCTL13), + MAX8925_REG_RESOURCE(LDOCTL14, LDOCTL14), + MAX8925_REG_RESOURCE(LDOCTL15, LDOCTL15), + MAX8925_REG_RESOURCE(LDOCTL16, LDOCTL16), + MAX8925_REG_RESOURCE(LDOCTL17, LDOCTL17), + MAX8925_REG_RESOURCE(LDOCTL18, LDOCTL18), + MAX8925_REG_RESOURCE(LDOCTL19, LDOCTL19), + MAX8925_REG_RESOURCE(LDOCTL20, LDOCTL20), +}; + +#define MAX8925_REG_DEVS(_id) \ +{ \ + .name = "max8925-regulator", \ + .num_resources = 1, \ + .resources = ®ulator_resources[MAX8925_ID_##_id], \ + .id = MAX8925_ID_##_id, \ +} + +static struct mfd_cell regulator_devs[] = { + MAX8925_REG_DEVS(SD1), + MAX8925_REG_DEVS(SD2), + MAX8925_REG_DEVS(SD3), + MAX8925_REG_DEVS(LDO1), + MAX8925_REG_DEVS(LDO2), + MAX8925_REG_DEVS(LDO3), + MAX8925_REG_DEVS(LDO4), + MAX8925_REG_DEVS(LDO5), + MAX8925_REG_DEVS(LDO6), + MAX8925_REG_DEVS(LDO7), + MAX8925_REG_DEVS(LDO8), + MAX8925_REG_DEVS(LDO9), + MAX8925_REG_DEVS(LDO10), + MAX8925_REG_DEVS(LDO11), + MAX8925_REG_DEVS(LDO12), + MAX8925_REG_DEVS(LDO13), + MAX8925_REG_DEVS(LDO14), + MAX8925_REG_DEVS(LDO15), + MAX8925_REG_DEVS(LDO16), + MAX8925_REG_DEVS(LDO17), + MAX8925_REG_DEVS(LDO18), + MAX8925_REG_DEVS(LDO19), + MAX8925_REG_DEVS(LDO20), +}; + static int __get_irq_offset(struct max8925_chip *chip, int irq, int mode, int *offset, int *bit) { @@ -210,6 +313,30 @@ static int __devinit device_gpm_init(struct max8925_chip *chip, /* enable hard-reset for ONKEY power-off */ max8925_set_bits(i2c, MAX8925_SYSENSEL, 0x80, 0x80); + + ret = mfd_add_devices(chip->dev, 0, ®ulator_devs[0], + ARRAY_SIZE(regulator_devs), + ®ulator_resources[0], 0); + if (ret < 0) { + dev_err(chip->dev, "Failed to add regulator subdev\n"); + goto out_irq; + } + + if (pdata && pdata->backlight) { + ret = mfd_add_devices(chip->dev, 0, &backlight_devs[0], + ARRAY_SIZE(backlight_devs), + &backlight_resources[0], 0); + if (ret < 0) { + dev_err(chip->dev, "Failed to add backlight subdev\n"); + goto out_dev; + } + } + return 0; +out_dev: + mfd_remove_devices(chip->dev); +out_irq: + if (chip->chip_irq) + free_irq(chip->chip_irq, chip); out: return ret; } @@ -233,6 +360,20 @@ static int __devinit device_adc_init(struct max8925_chip *chip, goto out; } chip->chip_irq = i2c->irq; + + if (pdata && pdata->touch) { + ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], + ARRAY_SIZE(touch_devs), + &touch_resources[0], 0); + if (ret < 0) { + dev_err(chip->dev, "Failed to add touch subdev\n"); + goto out_irq; + } + } + return 0; +out_irq: + if (chip->chip_irq) + free_irq(chip->chip_irq, chip); out: return ret; } @@ -255,6 +396,7 @@ void max8925_device_exit(struct max8925_chip *chip) { if (chip->chip_irq >= 0) free_irq(chip->chip_irq, chip); + mfd_remove_devices(chip->dev); } MODULE_DESCRIPTION("PMIC Driver for Maxim MAX8925"); diff --git a/include/linux/mfd/max8925.h b/include/linux/mfd/max8925.h index 2326246..b72dbe1 100644 --- a/include/linux/mfd/max8925.h +++ b/include/linux/mfd/max8925.h @@ -14,6 +14,33 @@ #include <linux/interrupt.h> +/* Unified sub device IDs for MAX8925 */ +enum { + MAX8925_ID_SD1, + MAX8925_ID_SD2, + MAX8925_ID_SD3, + MAX8925_ID_LDO1, + MAX8925_ID_LDO2, + MAX8925_ID_LDO3, + MAX8925_ID_LDO4, + MAX8925_ID_LDO5, + MAX8925_ID_LDO6, + MAX8925_ID_LDO7, + MAX8925_ID_LDO8, + MAX8925_ID_LDO9, + MAX8925_ID_LDO10, + MAX8925_ID_LDO11, + MAX8925_ID_LDO12, + MAX8925_ID_LDO13, + MAX8925_ID_LDO14, + MAX8925_ID_LDO15, + MAX8925_ID_LDO16, + MAX8925_ID_LDO17, + MAX8925_ID_LDO18, + MAX8925_ID_LDO19, + MAX8925_ID_LDO20, +}; + /* Charger registers */ #define MAX8925_CHG_IRQ1 (0x7e) #define MAX8925_CHG_IRQ2 (0x7f) @@ -32,12 +59,65 @@ /* Touch registers */ #define MAX8925_TSC_IRQ (0x00) #define MAX8925_TSC_IRQ_MASK (0x01) +#define MAX8925_ADC_RES_END (0x6f) /* RTC registers */ #define MAX8925_RTC_STATUS (0x1a) #define MAX8925_RTC_IRQ (0x1c) #define MAX8925_RTC_IRQ_MASK (0x1d) +/* WLED registers */ +#define MAX8925_WLED_MODE_CNTL (0x84) +#define MAX8925_WLED_CNTL (0x85) + +/* MAX8925 Registers */ +#define MAX8925_SDCTL1 (0x04) +#define MAX8925_SDCTL2 (0x07) +#define MAX8925_SDCTL3 (0x0A) +#define MAX8925_SDV1 (0x06) +#define MAX8925_SDV2 (0x09) +#define MAX8925_SDV3 (0x0C) +#define MAX8925_LDOCTL1 (0x18) +#define MAX8925_LDOCTL2 (0x1C) +#define MAX8925_LDOCTL3 (0x20) +#define MAX8925_LDOCTL4 (0x24) +#define MAX8925_LDOCTL5 (0x28) +#define MAX8925_LDOCTL6 (0x2C) +#define MAX8925_LDOCTL7 (0x30) +#define MAX8925_LDOCTL8 (0x34) +#define MAX8925_LDOCTL9 (0x38) +#define MAX8925_LDOCTL10 (0x3C) +#define MAX8925_LDOCTL11 (0x40) +#define MAX8925_LDOCTL12 (0x44) +#define MAX8925_LDOCTL13 (0x48) +#define MAX8925_LDOCTL14 (0x4C) +#define MAX8925_LDOCTL15 (0x50) +#define MAX8925_LDOCTL16 (0x10) +#define MAX8925_LDOCTL17 (0x14) +#define MAX8925_LDOCTL18 (0x72) +#define MAX8925_LDOCTL19 (0x5C) +#define MAX8925_LDOCTL20 (0x9C) +#define MAX8925_LDOVOUT1 (0x1A) +#define MAX8925_LDOVOUT2 (0x1E) +#define MAX8925_LDOVOUT3 (0x22) +#define MAX8925_LDOVOUT4 (0x26) +#define MAX8925_LDOVOUT5 (0x2A) +#define MAX8925_LDOVOUT6 (0x2E) +#define MAX8925_LDOVOUT7 (0x32) +#define MAX8925_LDOVOUT8 (0x36) +#define MAX8925_LDOVOUT9 (0x3A) +#define MAX8925_LDOVOUT10 (0x3E) +#define MAX8925_LDOVOUT11 (0x42) +#define MAX8925_LDOVOUT12 (0x46) +#define MAX8925_LDOVOUT13 (0x4A) +#define MAX8925_LDOVOUT14 (0x4E) +#define MAX8925_LDOVOUT15 (0x52) +#define MAX8925_LDOVOUT16 (0x12) +#define MAX8925_LDOVOUT17 (0x16) +#define MAX8925_LDOVOUT18 (0x74) +#define MAX8925_LDOVOUT19 (0x5E) +#define MAX8925_LDOVOUT20 (0x9E) + /* bit definitions */ #define CHG_IRQ1_MASK (0x07) #define CHG_IRQ2_MASK (0xff) @@ -83,6 +163,8 @@ enum { #define MAX8925_IRQ_TSC_STICK (0) #define MAX8925_IRQ_TSC_NSTICK (1) +#define MAX8925_MAX_REGULATOR (23) + struct max8925_irq { irq_handler_t handler; void *data; @@ -100,7 +182,21 @@ struct max8925_chip { int chip_irq; }; +struct max8925_backlight_pdata { + int lxw_scl; /* 0/1 -- 0.8Ohm/0.4Ohm */ + int lxw_freq; /* 700KHz ~ 1400KHz */ + int dual_string; /* 0/1 -- single/dual string */ +}; + +struct max8925_touch_pdata { + unsigned int flags; +}; + struct max8925_platform_data { + struct max8925_backlight_pdata *backlight; + struct max8925_touch_pdata *touch; + struct regulator_init_data *regulator[MAX8925_MAX_REGULATOR]; + int chip_id; int chip_irq; }; |