diff options
Diffstat (limited to 'drivers/mfd')
-rw-r--r-- | drivers/mfd/88pm860x-core.c | 217 |
1 files changed, 205 insertions, 12 deletions
diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c index 9185f0d945f..16f0dca707a 100644 --- a/drivers/mfd/88pm860x-core.c +++ b/drivers/mfd/88pm860x-core.c @@ -17,6 +17,100 @@ #include <linux/mfd/core.h> #include <linux/mfd/88pm860x.h> +char pm860x_backlight_name[][MFD_NAME_SIZE] = { + "backlight-0", + "backlight-1", + "backlight-2", +}; +EXPORT_SYMBOL(pm860x_backlight_name); + +char pm860x_led_name[][MFD_NAME_SIZE] = { + "led0-red", + "led0-green", + "led0-blue", + "led1-red", + "led1-green", + "led1-blue", +}; +EXPORT_SYMBOL(pm860x_led_name); + +#define PM8606_BACKLIGHT_RESOURCE(_i, _x) \ +{ \ + .name = pm860x_backlight_name[_i], \ + .start = PM8606_##_x, \ + .end = PM8606_##_x, \ + .flags = IORESOURCE_IO, \ +} + +static struct resource backlight_resources[] = { + PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT1, WLED1A), + PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT2, WLED2A), + PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT3, WLED3A), +}; + +#define PM8606_BACKLIGHT_DEVS(_i) \ +{ \ + .name = "88pm860x-backlight", \ + .num_resources = 1, \ + .resources = &backlight_resources[_i], \ + .id = _i, \ +} + +static struct mfd_cell backlight_devs[] = { + PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT1), + PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT2), + PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT3), +}; + +#define PM8606_LED_RESOURCE(_i, _x) \ +{ \ + .name = pm860x_led_name[_i], \ + .start = PM8606_##_x, \ + .end = PM8606_##_x, \ + .flags = IORESOURCE_IO, \ +} + +static struct resource led_resources[] = { + PM8606_LED_RESOURCE(PM8606_LED1_RED, RGB2B), + PM8606_LED_RESOURCE(PM8606_LED1_GREEN, RGB2C), + PM8606_LED_RESOURCE(PM8606_LED1_BLUE, RGB2D), + PM8606_LED_RESOURCE(PM8606_LED2_RED, RGB1B), + PM8606_LED_RESOURCE(PM8606_LED2_GREEN, RGB1C), + PM8606_LED_RESOURCE(PM8606_LED2_BLUE, RGB1D), +}; + +#define PM8606_LED_DEVS(_i) \ +{ \ + .name = "88pm860x-led", \ + .num_resources = 1, \ + .resources = &led_resources[_i], \ + .id = _i, \ +} + +static struct mfd_cell led_devs[] = { + PM8606_LED_DEVS(PM8606_LED1_RED), + PM8606_LED_DEVS(PM8606_LED1_GREEN), + PM8606_LED_DEVS(PM8606_LED1_BLUE), + PM8606_LED_DEVS(PM8606_LED2_RED), + PM8606_LED_DEVS(PM8606_LED2_GREEN), + PM8606_LED_DEVS(PM8606_LED2_BLUE), +}; + +static struct resource touch_resources[] = { + { + .start = PM8607_IRQ_PEN, + .end = PM8607_IRQ_PEN, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell touch_devs[] = { + { + .name = "88pm860x-touch", + .num_resources = 1, + .resources = &touch_resources[0], + }, +}; #define PM8607_REG_RESOURCE(_start, _end) \ { \ @@ -25,7 +119,7 @@ .flags = IORESOURCE_IO, \ } -static struct resource pm8607_regulator_resources[] = { +static struct resource regulator_resources[] = { PM8607_REG_RESOURCE(BUCK1, BUCK1), PM8607_REG_RESOURCE(BUCK2, BUCK2), PM8607_REG_RESOURCE(BUCK3, BUCK3), @@ -47,10 +141,11 @@ static struct resource pm8607_regulator_resources[] = { { \ .name = "88pm8607-" #_name, \ .num_resources = 1, \ - .resources = &pm8607_regulator_resources[PM8607_ID_##_id], \ + .resources = ®ulator_resources[PM8607_ID_##_id], \ + .id = PM8607_ID_##_id, \ } -static struct mfd_cell pm8607_devs[] = { +static struct mfd_cell regulator_devs[] = { PM8607_REG_DEVS(buck1, BUCK1), PM8607_REG_DEVS(buck2, BUCK2), PM8607_REG_DEVS(buck3, BUCK3), @@ -192,6 +287,61 @@ int pm860x_free_irq(struct pm860x_chip *chip, int irq) } EXPORT_SYMBOL(pm860x_free_irq); +static int __devinit device_gpadc_init(struct pm860x_chip *chip, + struct pm860x_platform_data *pdata) +{ + struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \ + : chip->companion; + int use_gpadc = 0, data, ret; + + /* initialize GPADC without activating it */ + + if (pdata && pdata->touch) { + /* set GPADC MISC1 register */ + data = 0; + data |= (pdata->touch->gpadc_prebias << 1) + & PM8607_GPADC_PREBIAS_MASK; + data |= (pdata->touch->slot_cycle << 3) + & PM8607_GPADC_SLOT_CYCLE_MASK; + data |= (pdata->touch->off_scale << 5) + & PM8607_GPADC_OFF_SCALE_MASK; + data |= (pdata->touch->sw_cal << 7) + & PM8607_GPADC_SW_CAL_MASK; + if (data) { + ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data); + if (ret < 0) + goto out; + } + /* set tsi prebias time */ + if (pdata->touch->tsi_prebias) { + data = pdata->touch->tsi_prebias; + ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data); + if (ret < 0) + goto out; + } + /* set prebias & prechg time of pen detect */ + data = 0; + data |= pdata->touch->pen_prebias & PM8607_PD_PREBIAS_MASK; + data |= (pdata->touch->pen_prechg << 5) + & PM8607_PD_PRECHG_MASK; + if (data) { + ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data); + if (ret < 0) + goto out; + } + + use_gpadc = 1; + } + + /* turn on GPADC */ + if (use_gpadc) { + ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1, + PM8607_GPADC_EN, PM8607_GPADC_EN); + } +out: + return ret; +} + static int __devinit device_irq_init(struct pm860x_chip *chip, struct pm860x_platform_data *pdata) { @@ -264,14 +414,40 @@ static void __devinit device_8606_init(struct pm860x_chip *chip, struct i2c_client *i2c, struct pm860x_platform_data *pdata) { + int ret; + + 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; + } + } + + if (pdata && pdata->led) { + ret = mfd_add_devices(chip->dev, 0, &led_devs[0], + ARRAY_SIZE(led_devs), + &led_resources[0], 0); + if (ret < 0) { + dev_err(chip->dev, "Failed to add led " + "subdev\n"); + goto out_dev; + } + } + return; +out_dev: + mfd_remove_devices(chip->dev); + device_irq_exit(chip); } static void __devinit device_8607_init(struct pm860x_chip *chip, struct i2c_client *i2c, struct pm860x_platform_data *pdata) { - int i, count, data; - int ret; + int data, ret; ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); if (ret < 0) { @@ -311,19 +487,36 @@ static void __devinit device_8607_init(struct pm860x_chip *chip, goto out; } + ret = device_gpadc_init(chip, pdata); + if (ret < 0) + goto out; + ret = device_irq_init(chip, pdata); if (ret < 0) goto out; - count = ARRAY_SIZE(pm8607_devs); - for (i = 0; i < count; i++) { - ret = mfd_add_devices(chip->dev, i, &pm8607_devs[i], - 1, NULL, 0); - if (ret != 0) { - dev_err(chip->dev, "Failed to add subdevs\n"); - goto out; + 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_dev; + } + + 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_dev; } } + return; +out_dev: + mfd_remove_devices(chip->dev); + device_irq_exit(chip); out: return; } |