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authorharish_kandiga@mentor.com <harish_kandiga@mentor.com>2018-04-10 10:00:31 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2018-05-02 16:08:39 +0300
commitebc5a1bf4f2afc2f2b348320dcfb45a8c0ac3de5 (patch)
treea3444f451f815f7e4d05b31c67c5b00e996c85ec /include/linux/mmc
parentd39b1b2abf9fcae3001b868186faa1ae889aecf5 (diff)
downloadlinux-ebc5a1bf4f2afc2f2b348320dcfb45a8c0ac3de5.tar.xz
mmc: core: Add a new quirk for limiting clock rate
This patch adds a quirk to limit clock rate which can be used to reduce the SDIO clock rate for some chips with broken UHS. Signed-off-by: Harish Jenny K N <harish_kandiga@mentor.com> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc')
-rw-r--r--include/linux/mmc/card.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 279b39008a33..5ebc47855721 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -252,6 +252,7 @@ struct mmc_card {
#define MMC_TYPE_SD_COMBO 3 /* SD combo (IO+mem) card */
unsigned int state; /* (our) card state */
unsigned int quirks; /* card quirks */
+ unsigned int quirk_max_rate; /* max rate set by quirks */
#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
/* for byte mode */