diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2013-05-02 12:57:51 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-05-21 12:49:35 +0200 |
| commit | 2660a22b55ae9a01c1e1117e9d514427834704bc (patch) | |
| tree | c7916dc615e236732afe6d7363a8cd914fbd8489 /drivers/media/i2c/mt9p031.c | |
| parent | [media] mt9p031: Power down the sensor if no supported device has been detected (diff) | |
| download | linux-2660a22b55ae9a01c1e1117e9d514427834704bc.tar.xz linux-2660a22b55ae9a01c1e1117e9d514427834704bc.zip | |
[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>
Diffstat (limited to 'drivers/media/i2c/mt9p031.c')
| -rw-r--r-- | drivers/media/i2c/mt9p031.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c index 8de84c0a48dc..bf49899945f8 100644 --- a/drivers/media/i2c/mt9p031.c +++ b/drivers/media/i2c/mt9p031.c @@ -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) |