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Date:   Wed, 21 Sep 2016 09:43:49 +0800
From:   Shawn Lin <shawn.lin@...k-chips.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        Ziyuan Xu <xzy.xu@...k-chips.com>,
        Shawn Lin <shawn.lin@...k-chips.com>
Subject: [PATCH 1/5] mmc: core: don't try to switch block size for dual rate mode

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