mtd: rawnand: ams-delta: Support custom driver initialisation (d1b1a8f7) · Commits · 戴 / test

In preparation for extending the driver with custom I/O support, try to obtain device specific initialisation routine from a matching device table entry and run it as an additional step of device probe. Signed-off-by:

Janusz Krzysztofik <jmkrzyszt@gmail.com> Signed-off-by:

Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20200212003929.6682-12-jmkrzyszt@gmail.com

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

+11 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@
		#include <linux/mtd/nand-gpio.h>
		#include <linux/mtd/rawnand.h>
		#include <linux/mtd/partitions.h>
		#include <linux/of_device.h>
		#include <linux/platform_device.h>
		#include <linux/sizes.h>

		@@ -230,6 +231,7 @@ static int ams_delta_init(struct platform_device *pdev)
		struct nand_chip *this;
		struct mtd_info *mtd;
		struct gpio_descs *data_gpiods;
		int (probe)(struct platform_device pdev, struct ams_delta_nand *priv);
		int err = 0;

		if (pdata) {
		@@ -319,6 +321,15 @@ static int ams_delta_init(struct platform_device *pdev)
		priv->data_gpiods = data_gpiods;
		priv->data_in = true;

		if (pdev->id_entry)
		probe = (void *) pdev->id_entry->driver_data;
		else
		probe = of_device_get_match_data(&pdev->dev);
		if (probe)
		err = probe(pdev, priv);
		if (err)
		return err;

		/* Initialize the NAND controller object embedded in ams_delta_nand. */
		priv->base.ops = &ams_delta_ops;
		nand_controller_init(&priv->base);

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