spi: core: use gpio_is_valid() helper

Check if GPIO pin is valid by API helper function.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 64c1aedde4817f8524d66ad8a829d2eb576f3194..9136f30a9fbd6db8c5e440ea50875e50deed6285 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -606,7 +606,7 @@ static void spi_set_cs(struct spi_device *spi, bool enable)
        if (spi->mode & SPI_CS_HIGH)
                enable = !enable;
 
-       if (spi->cs_gpio >= 0)
+       if (gpio_is_valid(spi->cs_gpio))
                gpio_set_value(spi->cs_gpio, !enable);
        else if (spi->master->set_cs)
                spi->master->set_cs(spi, !enable);