From: Chaotian Jing <chaotian.jing@mediatek.com>
Date: Fri, 15 Feb 2019 05:59:34 +0000 (+0800)
Subject: mmc: core: do not retry CMD6 in __mmc_switch()
X-Git-Tag: v5.1-rc1~184^2~7
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=3a0681c7448b174e5dcfd19e9079cdd281c35f1a;p=uclinux-h8%2Flinux.git

mmc: core: do not retry CMD6 in __mmc_switch()

the response type of CMD6 is R1B, when the first CMD6 gets response
CRC error, do retry may get timeout error due to card may still in
busy state, which cause this retry make no sense.

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 9054329fe903..c5208fb312ae 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -562,7 +562,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 	if (index == EXT_CSD_SANITIZE_START)
 		cmd.sanitize_busy = true;
 
-	err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
+	err = mmc_wait_for_cmd(host, &cmd, 0);
 	if (err)
 		goto out;