Commit a94c8b39 authored Nov 13, 2017 by Veerabhadrarao Badiganti Committed by Gerrit - the friendly Code Review server Aug 08, 2018

mmc: core: Return card status if sdr104_wa is not present

On the targets in which sdr104 workaround is not needed, simply return
card status from mmc_recovery_fallback_lower_speed() call.

If any platform uses the tray for SD card, then even if the tray is
inserted without sd card, card-detect gpio pulled low. And in card
removal detection path we end-up in calling
mmc_recovery_fallback_lower_speed(). If we don't return error or card
status it may treat errors are due to CRC errors and try to fall-back to
lower speed mode instead of marking the card as removed.

Change-Id: I83a41c44f5b031663733d7ffa226c1feaa5c9203
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>

parent 60733446

drivers/mmc/core/core.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -468,6 +468,9 @@ int mmc_recovery_fallback_lower_speed(struct mmc_host *host)
		mmc_host_clear_sdr104(host);
		err = mmc_hw_reset(host);
		host->card->sdr104_blocked = true;
		} else {
		/* If sdr104_wa is not present, just return status */
		err = host->bus_ops->alive(host);
		}
		if (err)
		pr_err("%s: %s: Fallback to lower speed mode failed with err=%d\n",