From: Wolfram Sang wsa+renesas@sang-engineering.com
[ Upstream commit b0e370b95a3b231d0fb5d1958cce85ef57196fe6 ]
We don't have a reproducible error case, yet our BSP team suggested that the mmc_switch_status() command in mmc_select_hs400() should come after the callback into the driver completing HS400 setup. It makes sense to me because we want the status of a fully setup HS400, so it will increase the reliability of the mmc_switch_status() command.
Reported-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Signed-off-by: Wolfram Sang wsa+renesas@sang-engineering.com Fixes: ba6c7ac3a2f4 ("mmc: core: more fine-grained hooks for HS400 tuning") Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/core/mmc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 55997cf84b39..f1fe446eee66 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1209,13 +1209,13 @@ static int mmc_select_hs400(struct mmc_card *card) mmc_set_timing(host, MMC_TIMING_MMC_HS400); mmc_set_bus_speed(card);
+ if (host->ops->hs400_complete) + host->ops->hs400_complete(host); + err = mmc_switch_status(card); if (err) goto out_err;
- if (host->ops->hs400_complete) - host->ops->hs400_complete(host); - return 0;
out_err: