[PATCH 3.16 113/305] mmc: longer timeout for long read time quirk
From: Ben Hutchings <hidden>
Date: 2016-08-14 11:33:03
Also in:
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3.16.37-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Matt Gumbel <redacted> commit 32ecd320db39bcb007679ed42f283740641b81ea upstream. 008GE0 Toshiba mmc in some Intel Baytrail tablets responds to MMC_SEND_EXT_CSD in 450-600ms. This patch will... () Increase the long read time quirk timeout from 300ms to 600ms. Original author of that quirk says 300ms was only a guess and that the number may need to be raised in the future. () Add this specific MMC to the quirk Signed-off-by: Matt Gumbel <redacted> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <redacted> Signed-off-by: Ben Hutchings <redacted> --- drivers/mmc/card/block.c | 5 +++-- drivers/mmc/core/core.c | 4 ++-- 2 files changed, 5 insertions(+), 4 deletions(-)
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c@@ -2401,11 +2401,12 @@ static const struct mmc_fixup blk_fixups MMC_QUIRK_BLK_NO_CMD23), /* - * Some Micron MMC cards needs longer data read timeout than - * indicated in CSD. + * Some MMC cards need longer data read timeout than indicated in CSD. */ MMC_FIXUP(CID_NAME_ANY, CID_MANFID_MICRON, 0x200, add_quirk_mmc, MMC_QUIRK_LONG_READ_TIME), + MMC_FIXUP("008GE0", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc, + MMC_QUIRK_LONG_READ_TIME), /* * On these Samsung MoviNAND parts, performing secure erase or --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c
@@ -811,11 +811,11 @@ void mmc_set_data_timeout(struct mmc_dat /* * Some cards require longer data read timeout than indicated in CSD. * Address this by setting the read timeout to a "reasonably high" - * value. For the cards tested, 300ms has proven enough. If necessary, + * value. For the cards tested, 600ms has proven enough. If necessary, * this value can be increased if other problematic cards require this. */ if (mmc_card_long_read_time(card) && data->flags & MMC_DATA_READ) { - data->timeout_ns = 300000000; + data->timeout_ns = 600000000; data->timeout_clks = 0; }