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[media] mt9p031: Use gpio_is_valid() 

Replace the manual validity checks for the reset GPIO with the
gpio_is_valid() function.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Laurent Pinchart 2013-05-02 07:57:51 -03:00 committed by Mauro Carvalho Chehab
parent bbcc9fa0af
commit 2660a22b55
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/media/i2c/mt9p031.c
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@ -272,7 +272,7 @@ static inline int mt9p031_pll_disable(struct mt9p031 *mt9p031)
static int mt9p031_power_on(struct mt9p031 *mt9p031)
{
/* Ensure RESET_BAR is low */
if (mt9p031->reset != -1) {
if (gpio_is_valid(mt9p031->reset)) {
gpio_set_value(mt9p031->reset, 0);
usleep_range(1000, 2000);
}
@ -287,7 +287,7 @@ static int mt9p031_power_on(struct mt9p031 *mt9p031)
clk_prepare_enable(mt9p031->clk);
/* Now RESET_BAR must be high */
if (mt9p031->reset != -1) {
if (gpio_is_valid(mt9p031->reset)) {
gpio_set_value(mt9p031->reset, 1);
usleep_range(1000, 2000);
}
@ -297,7 +297,7 @@ static int mt9p031_power_on(struct mt9p031 *mt9p031)
static void mt9p031_power_off(struct mt9p031 *mt9p031)
{
if (mt9p031->reset != -1) {
if (gpio_is_valid(mt9p031->reset)) {
gpio_set_value(mt9p031->reset, 0);
usleep_range(1000, 2000);
}
@ -1031,7 +1031,7 @@ static int mt9p031_probe(struct i2c_client *client,
mt9p031->format.field = V4L2_FIELD_NONE;
mt9p031->format.colorspace = V4L2_COLORSPACE_SRGB;
if (pdata->reset != -1) {
if (gpio_is_valid(pdata->reset)) {
ret = devm_gpio_request_one(&client->dev, pdata->reset,
GPIOF_OUT_INIT_LOW, "mt9p031_rst");
if (ret < 0)