diff options
| author | Janusz Krzysztofik <jmkrzyszt@gmail.com> | 2020-02-12 01:39:24 +0100 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-03-09 14:51:02 +0100 |
| commit | ea5ea9fa6db23ff5b194e84fad32e3bae5c7f357 (patch) | |
| tree | 2de47149437c50c0d043f1bdc57cdb15d98c6f7e /drivers/mtd/nand/raw | |
| parent | mtd: rawnand: ams-delta: Make read pulses optional (diff) | |
| download | linux-ea5ea9fa6db23ff5b194e84fad32e3bae5c7f357.tar.xz linux-ea5ea9fa6db23ff5b194e84fad32e3bae5c7f357.zip | |
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 <jmkrzyszt@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200212003929.6682-10-jmkrzyszt@gmail.com
Diffstat (limited to 'drivers/mtd/nand/raw')
| -rw-r--r-- | drivers/mtd/nand/raw/ams-delta.c | 6 |
1 files 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); |