mmc: sdhci: add delay after the last tuning command

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When host set the host->tuning_delay, even the last tuning
command need a delay, otherwise the first command after the
tuning will meet issue.

Take i.MX7D as an example, there will be the following log:
  mmc2: switch to high-speed from hs200 failed, err:-110
  mmc2: error -110 whilst initialising MMC card

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

...

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BOUGH CHEN 2018-12-28 08:35:49 +00:00 • committed by Ulf Hansson

parent d00ab1010c

commit 2b06e1597a

1 changed files with 4 additions and 3 deletions

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7

drivers/mmc/host/sdhci.c

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