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authorJan Kiszka <jan.kiszka@siemens.com>2017-08-03 11:40:32 (GMT)
committerMark Brown <broonie@kernel.org>2017-08-04 11:41:55 (GMT)
commitc18d925fca20d33c3d04e5002a883f62d699543e (patch)
tree4e57d89ebc6e5b9fc0bae8a153e2475a2f75183f /drivers/spi/spi-pxa2xx.c
parentd35f2dc9a2a84f4985d8b16b47040fd6291788ad (diff)
spi: pxa2xx: Convert to GPIO descriptor API where possible
We still need to request/free GPIOs passed via the legacy path of pxa2xx_spi_chip::gpio_cs, but we can use the gpiod API otherwise. Consistently use the descriptor API instead of the legacy one. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-pxa2xx.c')
-rw-r--r--drivers/spi/spi-pxa2xx.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 6e5af88..4cb515a 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -402,8 +402,8 @@ static void cs_assert(struct driver_data *drv_data)
return;
}
- if (gpio_is_valid(chip->gpio_cs)) {
- gpio_set_value(chip->gpio_cs, chip->gpio_cs_inverted);
+ if (chip->gpiod_cs) {
+ gpiod_set_value(chip->gpiod_cs, chip->gpio_cs_inverted);
return;
}
@@ -424,8 +424,8 @@ static void cs_deassert(struct driver_data *drv_data)
return;
}
- if (gpio_is_valid(chip->gpio_cs)) {
- gpio_set_value(chip->gpio_cs, !chip->gpio_cs_inverted);
+ if (chip->gpiod_cs) {
+ gpiod_set_value(chip->gpiod_cs, !chip->gpio_cs_inverted);
return;
}
@@ -1213,17 +1213,16 @@ static int setup_cs(struct spi_device *spi, struct chip_data *chip,
struct pxa2xx_spi_chip *chip_info)
{
struct driver_data *drv_data = spi_master_get_devdata(spi->master);
+ struct gpio_desc *gpiod;
int err = 0;
if (chip == NULL)
return 0;
if (drv_data->cs_gpiods) {
- struct gpio_desc *gpiod;
-
gpiod = drv_data->cs_gpiods[spi->chip_select];
if (gpiod) {
- chip->gpio_cs = desc_to_gpio(gpiod);
+ chip->gpiod_cs = gpiod;
chip->gpio_cs_inverted = spi->mode & SPI_CS_HIGH;
gpiod_set_value(gpiod, chip->gpio_cs_inverted);
}
@@ -1237,8 +1236,10 @@ static int setup_cs(struct spi_device *spi, struct chip_data *chip,
/* NOTE: setup() can be called multiple times, possibly with
* different chip_info, release previously requested GPIO
*/
- if (gpio_is_valid(chip->gpio_cs))
- gpio_free(chip->gpio_cs);
+ if (chip->gpiod_cs) {
+ gpio_free(desc_to_gpio(chip->gpiod_cs));
+ chip->gpiod_cs = NULL;
+ }
/* If (*cs_control) is provided, ignore GPIO chip select */
if (chip_info->cs_control) {
@@ -1254,11 +1255,11 @@ static int setup_cs(struct spi_device *spi, struct chip_data *chip,
return err;
}
- chip->gpio_cs = chip_info->gpio_cs;
+ gpiod = gpio_to_desc(chip_info->gpio_cs);
+ chip->gpiod_cs = gpiod;
chip->gpio_cs_inverted = spi->mode & SPI_CS_HIGH;
- err = gpio_direction_output(chip->gpio_cs,
- !chip->gpio_cs_inverted);
+ err = gpiod_direction_output(gpiod, !chip->gpio_cs_inverted);
}
return err;
@@ -1317,8 +1318,7 @@ static int setup(struct spi_device *spi)
}
chip->frm = spi->chip_select;
- } else
- chip->gpio_cs = -1;
+ }
chip->enable_dma = drv_data->master_info->enable_dma;
chip->timeout = TIMOUT_DFLT;
}
@@ -1416,8 +1416,8 @@ static void cleanup(struct spi_device *spi)
return;
if (drv_data->ssp_type != CE4100_SSP && !drv_data->cs_gpiods &&
- gpio_is_valid(chip->gpio_cs))
- gpio_free(chip->gpio_cs);
+ chip->gpiod_cs)
+ gpio_free(desc_to_gpio(chip->gpiod_cs));
kfree(chip);
}

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