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authorEsben Haabendal <esben@geanix.com>2020-01-17 21:05:37 +0100
committerMiquel Raynal <miquel.raynal@bootlin.com>2020-01-17 22:45:09 +0100
commitd70486668cdf51b14a50425ab45fc18677a167b2 (patch)
tree7be574741a78309da53964701d5ba7a6074c927b
parent5bc6bb603b4d0c8802af75e4932232683ab2d761 (diff)
downloadlinux-d70486668cdf51b14a50425ab45fc18677a167b2.tar.bz2
mtd: rawnand: gpmi: Restore nfc timing setup after suspend/resume
As we reset the GPMI block at resume, the timing parameters setup by a previous exec_op is lost. Rewriting GPMI timing registers on first exec_op after resume fixes the problem. Fixes: ef347c0cfd61 ("mtd: rawnand: gpmi: Implement exec_op") Cc: stable@vger.kernel.org Signed-off-by: Esben Haabendal <esben@geanix.com> Acked-by: Han Xu <han.xu@nxp.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
-rw-r--r--drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index 879df8402446..b9d5d55a5edb 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -2727,6 +2727,10 @@ static int gpmi_pm_resume(struct device *dev)
return ret;
}
+ /* Set flag to get timing setup restored for next exec_op */
+ if (this->hw.clk_rate)
+ this->hw.must_apply_timings = true;
+
/* re-init the BCH registers */
ret = bch_set_geometry(this);
if (ret) {