From: Matt Gumbel Date: Fri, 20 May 2016 07:33:46 +0000 (+0300) Subject: mmc: longer timeout for long read time quirk X-Git-Tag: firefly_0821_release~176^2~4^2~43^2~52 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=32971328e591632a077c3683b9c36c187deadd0e;p=firefly-linux-kernel-4.4.55.git mmc: longer timeout for long read time quirk 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 Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 553113eb1bdb..c641c202fe7e 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -2514,11 +2514,12 @@ 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 diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 5ae89e48fd85..5f7d10ba498a 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -874,11 +874,11 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card) /* * 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; }