[PATCH] spi: pic32: Convert to use GPIO descriptors

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

The driver already relies on the core looking up GPIO lines
from the core, so this is trivial to switch over to using
GPIO descriptors.

Cc: Purna Chandra Mandal <purna.mandal@xxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
 drivers/spi/spi-pic32.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spi-pic32.c b/drivers/spi/spi-pic32.c
index f86433b29260..7e5c09a7d489 100644
--- a/drivers/spi/spi-pic32.c
+++ b/drivers/spi/spi-pic32.c
@@ -591,18 +591,16 @@ static int pic32_spi_setup(struct spi_device *spi)
 	 * unreliable/erroneous SPI transactions.
 	 * To avoid that we will always handle /CS by toggling GPIO.
 	 */
-	if (!gpio_is_valid(spi->cs_gpio))
+	if (!spi->cs_gpiod)
 		return -EINVAL;
 
-	gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
-
 	return 0;
 }
 
 static void pic32_spi_cleanup(struct spi_device *spi)
 {
-	/* de-activate cs-gpio */
-	gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
+	/* de-activate cs-gpio, gpiolib will handle inversion */
+	gpiod_direction_output(spi->cs_gpiod, 0);
 }
 
 static int pic32_spi_dma_prep(struct pic32_spi *pic32s, struct device *dev)
@@ -784,6 +782,7 @@ static int pic32_spi_probe(struct platform_device *pdev)
 	master->unprepare_message	= pic32_spi_unprepare_message;
 	master->prepare_transfer_hardware	= pic32_spi_prepare_hardware;
 	master->unprepare_transfer_hardware	= pic32_spi_unprepare_hardware;
+	master->use_gpio_descriptors = true;
 
 	/* optional DMA support */
 	ret = pic32_spi_dma_prep(pic32s, &pdev->dev);
-- 
2.34.1