From: Esben Haabendal esben@geanix.com
commit d70486668cdf51b14a50425ab45fc18677a167b2 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 4 ++++ 1 file changed, 4 insertions(+)
--- 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 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) {