mmc: core: Enable / disable re-tuning
Enable re-tuning when tuning is executed and
disable re-tuning when card is no longer initialized.
In the case of SDIO suspend, the card can keep power.
In that case, re-tuning need not be disabled, but, if
a re-tuning timer is being used, ensure it is disabled
and assume that re-tuning will be needed upon resume
since it is not known how long the suspend will last.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 92e7671..007c444 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1109,6 +1109,8 @@
if (err)
pr_err("%s: tuning execution failed\n", mmc_hostname(host));
+ else
+ mmc_retune_enable(host);
return err;
}
@@ -1140,6 +1142,8 @@
*/
void mmc_set_initial_state(struct mmc_host *host)
{
+ mmc_retune_disable(host);
+
if (mmc_host_is_spi(host))
host->ios.chip_select = MMC_CS_HIGH;
else
