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mmc: sdhci-msm: use PIO for tuning commands

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There are issues with ADMA when used with ICE enabled for tuning
commands. As a workaround, use PIO mode for these commands by
enabling quirk SDHCI_QUIRK2_USE_PIO_FOR_EMMC_TUNING .

Change-Id: I8dbec823938525af90fb990db1bb4b325ee23cba
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
This commit is contained in:
Sahitya Tummala 2016-04-05 15:29:35 +05:30 • committed by Kyle Yan
parent f8fb46ff55
commit ecce69193d
1 changed files with 1 additions and 0 deletions
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drivers/mmc/host/sdhci-msm.c
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@ -4158,6 +4158,7 @@ static int sdhci_msm_probe(struct platform_device *pdev)
host->quirks2 |= SDHCI_QUIRK2_BROKEN_PRESET_VALUE;
host->quirks2 |= SDHCI_QUIRK2_USE_RESERVED_MAX_TIMEOUT;
host->quirks2 |= SDHCI_QUIRK2_NON_STANDARD_TUNING;
host->quirks2 |= SDHCI_QUIRK2_USE_PIO_FOR_EMMC_TUNING;
if (host->quirks2 & SDHCI_QUIRK2_ALWAYS_USE_BASE_CLOCK)
host->quirks2 |= SDHCI_QUIRK2_DIVIDE_TOUT_BY_4;