Commit 5ef5203b authored Dec 02, 2016 by Adrian Hunter Committed by Ulf Hansson Dec 05, 2016

mmc: sdhci: Fix tuning reset after exhausting the maximum number of loops



If the driver has exhausted the maximum number of tuning loops, then fixed
sampling is used. To do that both SDHCI_CTRL_TUNED_CLK and
SDHCI_CTRL_EXEC_TUNING must be reset to 0, but only SDHCI_CTRL_TUNED_CLK
was being reset. Reset SDHCI_CTRL_EXEC_TUNING to 0 also.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent 61e53bd0

drivers/mmc/host/sdhci.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2134,6 +2134,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
		*/
		if (tuning_loop_counter < 0) {
		ctrl &= ~SDHCI_CTRL_TUNED_CLK;
		ctrl &= ~SDHCI_CTRL_EXEC_TUNING;
		sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
		}
		if (!(ctrl & SDHCI_CTRL_TUNED_CLK)) {

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