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gpio: pisosr: Use devm_gpiod_get_optional for gpio->load_gpio

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gpio->load_gpio is optional, so use devm_gpiod_get_optional instead.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Axel Lin 2016-02-22 20:16:51 +08:00 committed by Linus Walleij
parent d34607d11d
commit 21d08ab9c9
1 changed files with 4 additions and 7 deletions
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11
drivers/gpio/gpio-pisosr.c
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@ -125,15 +125,12 @@ static int pisosr_gpio_probe(struct spi_device *spi)
if (!gpio->buffer) if (!gpio->buffer)
return -ENOMEM; return -ENOMEM;
gpio->load_gpio = devm_gpiod_get(dev, "load", GPIOD_OUT_LOW); gpio->load_gpio = devm_gpiod_get_optional(dev, "load", GPIOD_OUT_LOW);
if (IS_ERR(gpio->load_gpio)) { if (IS_ERR(gpio->load_gpio)) {
ret = PTR_ERR(gpio->load_gpio); ret = PTR_ERR(gpio->load_gpio);
if (ret != -ENOENT && ret != -ENOSYS) { if (ret != -EPROBE_DEFER)
if (ret != -EPROBE_DEFER) dev_err(dev, "Unable to allocate load GPIO\n");
dev_err(dev, "Unable to allocate load GPIO\n"); return ret;
return ret;
}
gpio->load_gpio = NULL;
} }
mutex_init(&gpio->lock); mutex_init(&gpio->lock);