Commit 62a5c075 authored by Jingoo Han's avatar Jingoo Han Committed by Linus Torvalds

backlight: l4f00242t03: export and use devm_gpio_request_one()

The devm_ functions allocate memory that is released when a driver
detaches.  This patch uses devm_gpio_request_one() for these functions.
Signed-off-by: default avatarJingoo Han <jg1.han@samsung.com>
Cc: Alberto Panizzo <alberto@amarulasolutions.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 4405d5d9
...@@ -175,28 +175,27 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi) ...@@ -175,28 +175,27 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
priv->spi = spi; priv->spi = spi;
ret = gpio_request_one(pdata->reset_gpio, GPIOF_OUT_INIT_HIGH, ret = devm_gpio_request_one(&spi->dev, pdata->reset_gpio,
"lcd l4f00242t03 reset"); GPIOF_OUT_INIT_HIGH, "lcd l4f00242t03 reset");
if (ret) { if (ret) {
dev_err(&spi->dev, dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 reset gpio.\n"); "Unable to get the lcd l4f00242t03 reset gpio.\n");
return ret; return ret;
} }
ret = gpio_request_one(pdata->data_enable_gpio, GPIOF_OUT_INIT_LOW, ret = devm_gpio_request_one(&spi->dev, pdata->data_enable_gpio,
"lcd l4f00242t03 data enable"); GPIOF_OUT_INIT_LOW, "lcd l4f00242t03 data enable");
if (ret) { if (ret) {
dev_err(&spi->dev, dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 data en gpio.\n"); "Unable to get the lcd l4f00242t03 data en gpio.\n");
goto err; return ret;
} }
priv->io_reg = regulator_get(&spi->dev, "vdd"); priv->io_reg = regulator_get(&spi->dev, "vdd");
if (IS_ERR(priv->io_reg)) { if (IS_ERR(priv->io_reg)) {
ret = PTR_ERR(priv->io_reg);
dev_err(&spi->dev, "%s: Unable to get the IO regulator\n", dev_err(&spi->dev, "%s: Unable to get the IO regulator\n",
__func__); __func__);
goto err2; return PTR_ERR(priv->io_reg);
} }
priv->core_reg = regulator_get(&spi->dev, "vcore"); priv->core_reg = regulator_get(&spi->dev, "vcore");
...@@ -204,14 +203,14 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi) ...@@ -204,14 +203,14 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
ret = PTR_ERR(priv->core_reg); ret = PTR_ERR(priv->core_reg);
dev_err(&spi->dev, "%s: Unable to get the core regulator\n", dev_err(&spi->dev, "%s: Unable to get the core regulator\n",
__func__); __func__);
goto err3; goto err1;
} }
priv->ld = lcd_device_register("l4f00242t03", priv->ld = lcd_device_register("l4f00242t03",
&spi->dev, priv, &l4f_ops); &spi->dev, priv, &l4f_ops);
if (IS_ERR(priv->ld)) { if (IS_ERR(priv->ld)) {
ret = PTR_ERR(priv->ld); ret = PTR_ERR(priv->ld);
goto err4; goto err2;
} }
/* Init the LCD */ /* Init the LCD */
...@@ -223,14 +222,10 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi) ...@@ -223,14 +222,10 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
return 0; return 0;
err4: err2:
regulator_put(priv->core_reg); regulator_put(priv->core_reg);
err3: err1:
regulator_put(priv->io_reg); regulator_put(priv->io_reg);
err2:
gpio_free(pdata->data_enable_gpio);
err:
gpio_free(pdata->reset_gpio);
return ret; return ret;
} }
...@@ -238,16 +233,12 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi) ...@@ -238,16 +233,12 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
static int __devexit l4f00242t03_remove(struct spi_device *spi) static int __devexit l4f00242t03_remove(struct spi_device *spi)
{ {
struct l4f00242t03_priv *priv = dev_get_drvdata(&spi->dev); struct l4f00242t03_priv *priv = dev_get_drvdata(&spi->dev);
struct l4f00242t03_pdata *pdata = priv->spi->dev.platform_data;
l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN); l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN);
lcd_device_unregister(priv->ld); lcd_device_unregister(priv->ld);
dev_set_drvdata(&spi->dev, NULL); dev_set_drvdata(&spi->dev, NULL);
gpio_free(pdata->data_enable_gpio);
gpio_free(pdata->reset_gpio);
regulator_put(priv->io_reg); regulator_put(priv->io_reg);
regulator_put(priv->core_reg); regulator_put(priv->core_reg);
......
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