diff mbox series

spi: mt65xx: Convert to GPIO descriptors

Message ID 20220122003302.374304-1-linus.walleij@linaro.org
State Accepted
Commit 1a5a87d541b442293dfcc2253b652bc7b7e02d09
Headers show
Series spi: mt65xx: Convert to GPIO descriptors | expand

Commit Message

Linus Walleij Jan. 22, 2022, 12:33 a.m. UTC 
The MT65xx driver was already relying on the core to get some
GPIO line numbers so it can be (hopefully) trivially converted
to use descriptors instead.

Cc: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Cc: Mason Zhang <Mason.Zhang@mediatek.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Peter Hess <peter.hess@ph-home.de>
Cc: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/spi/spi-mt65xx.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

Comments

Mark Brown Jan. 31, 2022, 4:39 p.m. UTC | #1 
On Sat, 22 Jan 2022 01:33:02 +0100, Linus Walleij wrote:
> The MT65xx driver was already relying on the core to get some
> GPIO line numbers so it can be (hopefully) trivially converted
> to use descriptors instead.
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next

Thanks!

[1/1] spi: mt65xx: Convert to GPIO descriptors
      commit: 1a5a87d541b442293dfcc2253b652bc7b7e02d09

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark
diff mbox series

Patch

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index a15de10ee286..4f49b2e93ca7 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -12,7 +12,7 @@ 
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/spi-mt65xx.h>
 #include <linux/pm_runtime.h>
@@ -605,8 +605,9 @@  static int mtk_spi_setup(struct spi_device *spi)
 	if (!spi->controller_data)
 		spi->controller_data = (void *)&mtk_default_chip_info;
 
-	if (mdata->dev_comp->need_pad_sel && gpio_is_valid(spi->cs_gpio))
-		gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
+	if (mdata->dev_comp->need_pad_sel && spi->cs_gpiod)
+		/* CS de-asserted, gpiolib will handle inversion */
+		gpiod_direction_output(spi->cs_gpiod, 0);
 
 	return 0;
 }
@@ -730,6 +731,7 @@  static int mtk_spi_probe(struct platform_device *pdev)
 	master->can_dma = mtk_spi_can_dma;
 	master->setup = mtk_spi_setup;
 	master->set_cs_timing = mtk_spi_set_hw_cs_timing;
+	master->use_gpio_descriptors = true;
 
 	of_id = of_match_node(mtk_spi_of_match, pdev->dev.of_node);
 	if (!of_id) {
@@ -853,25 +855,12 @@  static int mtk_spi_probe(struct platform_device *pdev)
 			goto err_disable_runtime_pm;
 		}
 
-		if (!master->cs_gpios && master->num_chipselect > 1) {
+		if (!master->cs_gpiods && master->num_chipselect > 1) {
 			dev_err(&pdev->dev,
 				"cs_gpios not specified and num_chipselect > 1\n");
 			ret = -EINVAL;
 			goto err_disable_runtime_pm;
 		}
-
-		if (master->cs_gpios) {
-			for (i = 0; i < master->num_chipselect; i++) {
-				ret = devm_gpio_request(&pdev->dev,
-							master->cs_gpios[i],
-							dev_name(&pdev->dev));
-				if (ret) {
-					dev_err(&pdev->dev,
-						"can't get CS GPIO %i\n", i);
-					goto err_disable_runtime_pm;
-				}
-			}
-		}
 	}
 
 	if (mdata->dev_comp->dma_ext)