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mmc: sdhci: report error once the maximum tuning loops exhausted or timeout

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The original code missed to report an error when the maximum tuning
loops exhausted or timeout, it will cause the upper layer to wrongly
think the tuning process is passed.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Dong Aisheng
2013-10-18 19:48:45 +08:00
committed by Chris Ball
parent 6b4fb6712a
commit 114f2bf6a1
1 changed files with 1 additions and 0 deletions
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1
drivers/mmc/host/sdhci.c
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@@ -1989,6 +1989,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
if (!tuning_loop_counter || !timeout) {
ctrl &= ~SDHCI_CTRL_TUNED_CLK;
sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
err = -EIO;
} else {
if (!(ctrl & SDHCI_CTRL_TUNED_CLK)) {
pr_info(DRIVER_NAME ": Tuning procedure"