Commit 1b65c43f authored by Pratyush Yadav's avatar Pratyush Yadav Committed by Vignesh Raghavendra
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mtd: spi-nor: core: disable Octal DTR mode on suspend. 



On resume, the init procedure will be run that will re-enable it.

Signed-off-by: default avatarPratyush Yadav <p.yadav@ti.com>
Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: default avatarTudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20201005153138.6437-14-p.yadav@ti.com
parent d73ee753

drivers/mtd/spi-nor/core.c

+15 −0
Original line number Diff line number Diff line
@@ -3216,6 +3216,20 @@ static void spi_nor_soft_reset(struct spi_nor *nor) 
	usleep_range(SPI_NOR_SRST_SLEEP_MIN, SPI_NOR_SRST_SLEEP_MAX);

}



/* mtd suspend handler */

static int spi_nor_suspend(struct mtd_info *mtd)

{

	struct spi_nor *nor = mtd_to_spi_nor(mtd);

	int ret;



	/* Disable octal DTR mode if we enabled it. */

	ret = spi_nor_octal_dtr_enable(nor, false);

	if (ret)

		dev_err(nor->dev, "suspend() failed\n");



	return ret;

}



/* mtd resume handler */

static void spi_nor_resume(struct mtd_info *mtd)

{
@@ -3421,6 +3435,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, 
	mtd->size = nor->params->size;

	mtd->_erase = spi_nor_erase;

	mtd->_read = spi_nor_read;

	mtd->_suspend = spi_nor_suspend;

	mtd->_resume = spi_nor_resume;



	if (nor->params->locking_ops) {