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: Kamal Dasu <[email protected]> --- drivers/mtd/spi-nor/spi-nor.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 10033ed..64c131d 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1863,6 +1863,18 @@ 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) @@ -1946,6 +1958,7 @@ 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 || -- 1.9.1
