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Commit d6084fc8 authored by Kamal Dasu's avatar Kamal Dasu Committed by Cyrille Pitchen
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mtd: spi-nor: Add spi-nor mtd resume handler 



Implemented and populated spi-nor mtd PM handlers for resume ops.
spi-nor resume op re-initializes spi-nor flash to its probed
state by calling the newly implemented spi_nor_init() function.

Signed-off-by: default avatarKamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: default avatarCyrille Pitchen <cyrille.pitchen@wedev4u.fr>
parent 46dde01f

drivers/mtd/spi-nor/spi-nor.c

+14 −0
Original line number Diff line number Diff line
@@ -2670,6 +2670,19 @@ static int spi_nor_init(struct spi_nor *nor) 
	return 0;

}



/* mtd resume handler */

static void spi_nor_resume(struct mtd_info *mtd)

{

	struct spi_nor *nor = mtd_to_spi_nor(mtd);

	struct device *dev = nor->dev;

	int ret;



	/* re-initialize the nor chip */

	ret = spi_nor_init(nor);

	if (ret)

		dev_err(dev, "resume() failed\n");

}



int spi_nor_scan(struct spi_nor *nor, const char *name,

		 const struct spi_nor_hwcaps *hwcaps)

{
@@ -2746,6 +2759,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, 
	mtd->size = params.size;

	mtd->_erase = spi_nor_erase;

	mtd->_read = spi_nor_read;

	mtd->_resume = spi_nor_resume;



	/* NOR protection support for STmicro/Micron chips and similar */

	if (JEDEC_MFR(info) == SNOR_MFR_MICRON ||