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path: root/drivers/video/backlight/l4f00242t03.c
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Diffstat (limited to 'drivers/video/backlight/l4f00242t03.c')
-rw-r--r--drivers/video/backlight/l4f00242t03.c70
1 files changed, 23 insertions, 47 deletions
diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index 98ad3e5f7c85..3543f1b7d5f1 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -52,15 +52,11 @@ static void l4f00242t03_lcd_init(struct spi_device *spi)
dev_dbg(&spi->dev, "initializing LCD\n");
- if (priv->io_reg) {
- regulator_set_voltage(priv->io_reg, 1800000, 1800000);
- regulator_enable(priv->io_reg);
- }
+ regulator_set_voltage(priv->io_reg, 1800000, 1800000);
+ regulator_enable(priv->io_reg);
- if (priv->core_reg) {
- regulator_set_voltage(priv->core_reg, 2800000, 2800000);
- regulator_enable(priv->core_reg);
- }
+ regulator_set_voltage(priv->core_reg, 2800000, 2800000);
+ regulator_enable(priv->core_reg);
l4f00242t03_reset(pdata->reset_gpio);
@@ -78,11 +74,8 @@ static void l4f00242t03_lcd_powerdown(struct spi_device *spi)
gpio_set_value(pdata->data_enable_gpio, 0);
- if (priv->io_reg)
- regulator_disable(priv->io_reg);
-
- if (priv->core_reg)
- regulator_disable(priv->core_reg);
+ regulator_disable(priv->io_reg);
+ regulator_disable(priv->core_reg);
}
static int l4f00242t03_lcd_power_get(struct lcd_device *ld)
@@ -178,47 +171,34 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
priv->spi = spi;
- ret = gpio_request(pdata->reset_gpio, "lcd l4f00242t03 reset");
+ ret = gpio_request_one(pdata->reset_gpio, GPIOF_OUT_INIT_HIGH,
+ "lcd l4f00242t03 reset");
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 reset gpio.\n");
goto err;
}
- ret = gpio_direction_output(pdata->reset_gpio, 1);
- if (ret)
- goto err2;
-
- ret = gpio_request(pdata->data_enable_gpio,
- "lcd l4f00242t03 data enable");
+ ret = gpio_request_one(pdata->data_enable_gpio, GPIOF_OUT_INIT_LOW,
+ "lcd l4f00242t03 data enable");
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 data en gpio.\n");
goto err2;
}
- ret = gpio_direction_output(pdata->data_enable_gpio, 0);
- if (ret)
+ priv->io_reg = regulator_get(&spi->dev, "vdd");
+ if (IS_ERR(priv->io_reg)) {
+ dev_err(&spi->dev, "%s: Unable to get the IO regulator\n",
+ __func__);
goto err3;
-
- if (pdata->io_supply) {
- priv->io_reg = regulator_get(NULL, pdata->io_supply);
-
- if (IS_ERR(priv->io_reg)) {
- pr_err("%s: Unable to get the IO regulator\n",
- __func__);
- goto err3;
- }
}
- if (pdata->core_supply) {
- priv->core_reg = regulator_get(NULL, pdata->core_supply);
-
- if (IS_ERR(priv->core_reg)) {
- pr_err("%s: Unable to get the core regulator\n",
- __func__);
- goto err4;
- }
+ priv->core_reg = regulator_get(&spi->dev, "vcore");
+ if (IS_ERR(priv->core_reg)) {
+ dev_err(&spi->dev, "%s: Unable to get the core regulator\n",
+ __func__);
+ goto err4;
}
priv->ld = lcd_device_register("l4f00242t03",
@@ -238,11 +218,9 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
return 0;
err5:
- if (priv->core_reg)
- regulator_put(priv->core_reg);
+ regulator_put(priv->core_reg);
err4:
- if (priv->io_reg)
- regulator_put(priv->io_reg);
+ regulator_put(priv->io_reg);
err3:
gpio_free(pdata->data_enable_gpio);
err2:
@@ -266,10 +244,8 @@ static int __devexit l4f00242t03_remove(struct spi_device *spi)
gpio_free(pdata->data_enable_gpio);
gpio_free(pdata->reset_gpio);
- if (priv->io_reg)
- regulator_put(priv->io_reg);
- if (priv->core_reg)
- regulator_put(priv->core_reg);
+ regulator_put(priv->io_reg);
+ regulator_put(priv->core_reg);
kfree(priv);