Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
mmc: core: Announce successful insertion of an SD UHS-II card
To inform the users about SD UHS-II cards, let's extend the print at card
insertion with a "UHS-II" substring. Within this change, it seems
reasonable to convert from using "ultra high speed" into "UHS-I speed", for
the UHS-I type, as it should makes it more clear.
Note that, the new print for UHS-II cards doesn't include the actual
selected speed mode. Instead, this is going to be added from subsequent
change.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20240913102836.6144-4-victorshihgli@gmail.com
+11
-1
+3
-1
drivers/mmc/core/bus.c
+3
-1
drivers/mmc/core/bus.c
···
346
346
if (mmc_card_hs(card))
347
347
speed_mode = "high speed ";
348
348
else if (mmc_card_uhs(card))
349
-
speed_mode = "ultra high speed ";
349
+
speed_mode = "UHS-I speed ";
350
+
else if (mmc_card_uhs2(card->host))
351
+
speed_mode = "UHS-II speed ";
350
352
else if (mmc_card_ddr52(card))
351
353
speed_mode = "high speed DDR ";
352
354
else if (mmc_card_hs200(card))
+8
include/linux/mmc/host.h
+8
include/linux/mmc/host.h
···
638
638
card->host->ios.timing <= MMC_TIMING_UHS_DDR50;
639
639
}
640
640
641
+
static inline bool mmc_card_uhs2(struct mmc_host *host)
642
+
{
643
+
return host->ios.timing == MMC_TIMING_UHS2_SPEED_A ||
644
+
host->ios.timing == MMC_TIMING_UHS2_SPEED_A_HD ||
645
+
host->ios.timing == MMC_TIMING_UHS2_SPEED_B ||
646
+
host->ios.timing == MMC_TIMING_UHS2_SPEED_B_HD;
647
+
}
648
+
641
649
void mmc_retune_timer_stop(struct mmc_host *host);
642
650
643
651
static inline void mmc_retune_needed(struct mmc_host *host)