redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

mmc: core: complete HS400 before checking status 

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: ba6c7ac3a2 ("mmc: core: more fine-grained hooks for HS400 tuning")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
hifive-unleashed-5.2
Wolfram Sang 2019-06-11 22:03:43 +02:00 committed by Ulf Hansson
parent 97bf85b6ec
commit b0e370b95a
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/mmc/core/mmc.c
View File

@ -1212,13 +1212,13 @@ 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: