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Commit bd11e8bd authored by Adrian Hunter's avatar Adrian Hunter Committed by Ulf Hansson
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mmc: core: Flag re-tuning is needed on CRC errors 



CRC errors could possibly be alleviated by
re-tuning so flag re-tuning needed in those cases.
Note this has no effect if re-tuning has not been
enabled.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 66c39dfc

drivers/mmc/core/core.c

+6 −0
Original line number Diff line number Diff line
@@ -133,6 +133,12 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq) 
	struct mmc_command *cmd = mrq->cmd;

	int err = cmd->error;



	/* Flag re-tuning needed on CRC errors */

	if (err == -EILSEQ || (mrq->sbc && mrq->sbc->error == -EILSEQ) ||

	    (mrq->data && mrq->data->error == -EILSEQ) ||

	    (mrq->stop && mrq->stop->error == -EILSEQ))

		mmc_retune_needed(host);



	if (err && cmd->retries && mmc_host_is_spi(host)) {

		if (cmd->resp[0] & R1_SPI_ILLEGAL_COMMAND)

			cmd->retries = 0;