spi: spi-gpio: Use 'cansleep' variants to access GPIO
The GPIO chip in use could be of any kind, and therefore might sleep
when accesing the GPIO lines. Take account of this by using cansleep
instead, which is the most generic case.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index 3fb09f9..7beeb29 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -115,17 +115,17 @@
static inline void setsck(const struct spi_device *spi, int is_on)
{
- gpio_set_value(SPI_SCK_GPIO, is_on);
+ gpio_set_value_cansleep(SPI_SCK_GPIO, is_on);
}
static inline void setmosi(const struct spi_device *spi, int is_on)
{
- gpio_set_value(SPI_MOSI_GPIO, is_on);
+ gpio_set_value_cansleep(SPI_MOSI_GPIO, is_on);
}
static inline int getmiso(const struct spi_device *spi)
{
- return !!gpio_get_value(SPI_MISO_GPIO);
+ return !!gpio_get_value_cansleep(SPI_MISO_GPIO);
}
#undef pdata
@@ -229,7 +229,7 @@
if (cs != SPI_GPIO_NO_CHIPSELECT) {
/* SPI is normally active-low */
- gpio_set_value(cs, (spi->mode & SPI_CS_HIGH) ? is_active : !is_active);
+ gpio_set_value_cansleep(cs, (spi->mode & SPI_CS_HIGH) ? is_active : !is_active);
}
}