[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>
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Коммит
2660a22b55
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@ -272,7 +272,7 @@ static inline int mt9p031_pll_disable(struct mt9p031 *mt9p031)
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static int mt9p031_power_on(struct mt9p031 *mt9p031)
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{
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/* Ensure RESET_BAR is low */
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if (mt9p031->reset != -1) {
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if (gpio_is_valid(mt9p031->reset)) {
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gpio_set_value(mt9p031->reset, 0);
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usleep_range(1000, 2000);
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}
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@ -287,7 +287,7 @@ static int mt9p031_power_on(struct mt9p031 *mt9p031)
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clk_prepare_enable(mt9p031->clk);
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/* Now RESET_BAR must be high */
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if (mt9p031->reset != -1) {
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if (gpio_is_valid(mt9p031->reset)) {
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gpio_set_value(mt9p031->reset, 1);
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usleep_range(1000, 2000);
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}
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@ -297,7 +297,7 @@ static int mt9p031_power_on(struct mt9p031 *mt9p031)
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static void mt9p031_power_off(struct mt9p031 *mt9p031)
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{
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if (mt9p031->reset != -1) {
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if (gpio_is_valid(mt9p031->reset)) {
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gpio_set_value(mt9p031->reset, 0);
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usleep_range(1000, 2000);
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}
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@ -1031,7 +1031,7 @@ static int mt9p031_probe(struct i2c_client *client,
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mt9p031->format.field = V4L2_FIELD_NONE;
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mt9p031->format.colorspace = V4L2_COLORSPACE_SRGB;
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if (pdata->reset != -1) {
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if (gpio_is_valid(pdata->reset)) {
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ret = devm_gpio_request_one(&client->dev, pdata->reset,
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GPIOF_OUT_INIT_LOW, "mt9p031_rst");
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if (ret < 0)
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