mtd: rawnand: ams-delta: Handle more GPIO pins as optional (ea5ea9fa) · Commits · 戴 / test

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

drivers/mtd/nand/raw/ams-delta.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -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);

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