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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-13 22:21:10 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-13 22:21:10 +0300 |
| commit | d36561296bb510bf339750ea22efaa660277642e (patch) | |
| tree | 7db5adec1f1de5ca98818ce382d28fbaecec6ef9 /drivers/mmc/core/core.c | |
| parent | ddd2b85ff73bb60061a9fb08ac1f5a03a2d4bce0 (diff) | |
| parent | 18d200460cd73636d4f20674085c39e32b4e0097 (diff) | |
| download | linux-d36561296bb510bf339750ea22efaa660277642e.tar.xz | |
Merge tag 'mmc-v5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Fix HW busy detection support for host controllers requiring the
MMC_RSP_BUSY response flag (R1B) to be set for the command. In
particular for CMD6 (eMMC), erase/trim/discard (SD/eMMC) and CMD5
(eMMC sleep).
MMC host:
- sdhci-omap|tegra: Fix support for HW busy detection"
* tag 'mmc-v5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for eMMC sleep command
mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
mmc: sdhci-omap: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for erase/trim/discard
mmc: core: Allow host controllers to require R1B for CMD6
Diffstat (limited to 'drivers/mmc/core/core.c')
| -rw-r--r-- | drivers/mmc/core/core.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index aa54d359dab7..a971c4bcc442 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1732,8 +1732,11 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from, * the erase operation does not exceed the max_busy_timeout, we should * use R1B response. Or we need to prevent the host from doing hw busy * detection, which is done by converting to a R1 response instead. + * Note, some hosts requires R1B, which also means they are on their own + * when it comes to deal with the busy timeout. */ - if (card->host->max_busy_timeout && + if (!(card->host->caps & MMC_CAP_NEED_RSP_BUSY) && + card->host->max_busy_timeout && busy_timeout > card->host->max_busy_timeout) { cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC; } else { |