From ea5ea9fa6db23ff5b194e84fad32e3bae5c7f357 Mon Sep 17 00:00:00 2001 From: Janusz Krzysztofik Date: Wed, 12 Feb 2020 01:39:24 +0100 Subject: [PATCH] mtd: rawnand: ams-delta: Handle more GPIO pins as optional In order to make the driver more useful on platforms other than Amstrad Delta, allow GPIO descriptor pointers of possibly non-critical NWP and NCE pins to be initialised as NULL. Signed-off-by: Janusz Krzysztofik Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200212003929.6682-10-jmkrzyszt@gmail.com --- drivers/mtd/nand/raw/ams-delta.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/ams-delta.c b/drivers/mtd/nand/raw/ams-delta.c index c481d73e3dcb..0c88e94e9b71 100644 --- a/drivers/mtd/nand/raw/ams-delta.c +++ b/drivers/mtd/nand/raw/ams-delta.c @@ -264,14 +264,16 @@ static int ams_delta_init(struct platform_device *pdev) platform_set_drvdata(pdev, priv); /* Set chip enabled but write protected */ - priv->gpiod_nwp = devm_gpiod_get(&pdev->dev, "nwp", GPIOD_OUT_HIGH); + priv->gpiod_nwp = devm_gpiod_get_optional(&pdev->dev, "nwp", + GPIOD_OUT_HIGH); if (IS_ERR(priv->gpiod_nwp)) { err = PTR_ERR(priv->gpiod_nwp); dev_err(&pdev->dev, "NWP GPIO request failed (%d)\n", err); return err; } - priv->gpiod_nce = devm_gpiod_get(&pdev->dev, "nce", GPIOD_OUT_LOW); + priv->gpiod_nce = devm_gpiod_get_optional(&pdev->dev, "nce", + GPIOD_OUT_LOW); if (IS_ERR(priv->gpiod_nce)) { err = PTR_ERR(priv->gpiod_nce); dev_err(&pdev->dev, "NCE GPIO request failed (%d)\n", err);