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path: root/drivers/mfd/88pm860x-core.c
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Diffstat (limited to 'drivers/mfd/88pm860x-core.c')
-rw-r--r--drivers/mfd/88pm860x-core.c217
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 = &regulator_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, &regulator_devs[0],
+ ARRAY_SIZE(regulator_devs),
+ &regulator_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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 05:15:20 +0000