diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/mfd/max8925-core.c | 142 |
2 files changed, 143 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index ee416eefb8e9..d63ab2eec661 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 3e26267960b1..f36c494b80f1 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"); |