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mtd: rawnand: ams-delta: Support custom driver initialisation

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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
This commit is contained in:
Janusz Krzysztofik 2020-02-12 01:39:26 +01:00 committed by Miquel Raynal
parent 7c2f66a960
commit d1b1a8f73a
1 changed files with 11 additions and 0 deletions
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11
drivers/mtd/nand/raw/ams-delta.c
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@ -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);