[PATCH 1/5] mmc: core: don't try to switch block size for dual rate mode

From	Shawn Lin <shawn.lin@rock-chips.com>
Newsgroups	linux.kernel
Subject	[PATCH 1/5] mmc: core: don't try to switch block size for dual rate mode
Date	2016-09-21 03:50 +0200
Message-ID	<sjEPD-2rt-3@gated-at.bofh.it> (permalink)
References	<sjEPD-2rt-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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From: Ziyuan Xu <xzy.xu@rock-chips.com>

Per spec, block size should always be 512 bytes for dual rate mode,
so any attempts to switch the block size under dual rate mode should
be neglected.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>

---

 drivers/mmc/core/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index f0ed0af..2553d90 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2576,7 +2576,8 @@ int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen)
 {
 	struct mmc_command cmd = {0};
 
-	if (mmc_card_blockaddr(card) || mmc_card_ddr52(card))
+	if (mmc_card_blockaddr(card) || mmc_card_ddr52(card) ||
+	    mmc_card_hs400(card) || mmc_card_hs400es(card))
 		return 0;
 
 	cmd.opcode = MMC_SET_BLOCKLEN;
-- 
2.3.7

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[PATCH 1/5] mmc: core: don't try to switch block size for dual rate mode Shawn Lin <shawn.lin@rock-chips.com> - 2016-09-21 03:50 +0200
  Re: [PATCH 1/5] mmc: core: don't try to switch block size for dual  rate mode Ulf Hansson <ulf.hansson@linaro.org> - 2016-09-22 11:50 +0200

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