diff options
| author | Erick Shepherd <erick.shepherd@ni.com> | 2025-04-01 01:13:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-27 13:07:32 +0300 |
| commit | be42e85091ca1776ca16c3da7c5ecaf28f04a4c6 (patch) | |
| tree | 42350b3b225c419cb09f487f48621285c97820f7 /include | |
| parent | c28421685ca06e18943eeb3ad2edac11c5d39a3f (diff) | |
| download | linux-be42e85091ca1776ca16c3da7c5ecaf28f04a4c6.tar.xz | |
mmc: Add quirk to disable DDR50 tuning
[ Upstream commit 9510b38dc0ba358c93cbf5ee7c28820afb85937b ]
Adds the MMC_QUIRK_NO_UHS_DDR50_TUNING quirk and updates
mmc_execute_tuning() to return 0 if that quirk is set. This fixes an
issue on certain Swissbit SD cards that do not support DDR50 tuning
where tuning requests caused I/O errors to be thrown.
Signed-off-by: Erick Shepherd <erick.shepherd@ni.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250331221337.1414534-1-erick.shepherd@ni.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/card.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index afa575e362a4..7c6da19fff9f 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -297,6 +297,7 @@ struct mmc_card { #define MMC_QUIRK_BROKEN_SD_CACHE (1<<15) /* Disable broken SD cache support */ #define MMC_QUIRK_BROKEN_CACHE_FLUSH (1<<16) /* Don't flush cache until the write has occurred */ #define MMC_QUIRK_BROKEN_SD_POWEROFF_NOTIFY (1<<17) /* Disable broken SD poweroff notify support */ +#define MMC_QUIRK_NO_UHS_DDR50_TUNING (1<<18) /* Disable DDR50 tuning */ bool written_flag; /* Indicates eMMC has been written since power on */ bool reenable_cmdq; /* Re-enable Command Queue */ |