diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2019-12-17 10:53:49 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2019-12-18 14:32:11 +0100 |
| commit | 75d27ea1abf7af3cc2cdec3513e74f52191605c8 (patch) | |
| tree | bf30e25d652e2732445546f3e58a5b260ed4c693 /drivers/mmc/host/sdhci.c | |
| parent | mmc: sdhci: Workaround broken command queuing on Intel GLK (diff) | |
| download | linux-75d27ea1abf7af3cc2cdec3513e74f52191605c8.tar.xz linux-75d27ea1abf7af3cc2cdec3513e74f52191605c8.zip | |
mmc: sdhci: Add a quirk for broken command queuing
Command queuing has been reported broken on some systems based on Intel
GLK. A separate patch disables command queuing in some cases.
This patch adds a quirk for broken command queuing, which enables users
with problems to disable command queuing using sdhci module parameters for
quirks.
Fixes: 8ee82bda230f ("mmc: sdhci-pci: Add CQHCI support for Intel GLK")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191217095349.14592-2-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 42a9c8179da7..1b1c26da3fe0 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -3767,6 +3767,9 @@ int sdhci_setup_host(struct sdhci_host *host) mmc_hostname(mmc), host->version); } + if (host->quirks & SDHCI_QUIRK_BROKEN_CQE) + mmc->caps2 &= ~MMC_CAP2_CQE; + if (host->quirks & SDHCI_QUIRK_FORCE_DMA) host->flags |= SDHCI_USE_SDMA; else if (!(host->caps & SDHCI_CAN_DO_SDMA)) |