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spi: pic32: Convert to use GPIO descriptors

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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@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220122004846.374930-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Linus Walleij 2022-01-22 01:48:46 +01:00 committed by Mark Brown
parent 2818824ced
commit 99407f11b5
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GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 5 deletions
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9
drivers/spi/spi-pic32.c
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@ -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);