Commit d6084fc8 authored by Kamal Dasu's avatar Kamal Dasu Committed by Cyrille Pitchen

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
...@@ -2670,6 +2670,19 @@ static int spi_nor_init(struct spi_nor *nor) ...@@ -2670,6 +2670,19 @@ static int spi_nor_init(struct spi_nor *nor)
return 0; 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, int spi_nor_scan(struct spi_nor *nor, const char *name,
const struct spi_nor_hwcaps *hwcaps) const struct spi_nor_hwcaps *hwcaps)
{ {
...@@ -2746,6 +2759,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, ...@@ -2746,6 +2759,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
mtd->size = params.size; mtd->size = params.size;
mtd->_erase = spi_nor_erase; mtd->_erase = spi_nor_erase;
mtd->_read = spi_nor_read; mtd->_read = spi_nor_read;
mtd->_resume = spi_nor_resume;
/* NOR protection support for STmicro/Micron chips and similar */ /* NOR protection support for STmicro/Micron chips and similar */
if (JEDEC_MFR(info) == SNOR_MFR_MICRON || if (JEDEC_MFR(info) == SNOR_MFR_MICRON ||
......
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