diff mbox series

[1/2] mmc: do not send cmd13 if the parameter 'send_status' is 0 for __mmc_switch

Message ID 1600769503-30395-1-git-send-email-haibo.chen@nxp.com
State New
Delegated to: Peng Fan
Headers show
Series [1/2] mmc: do not send cmd13 if the parameter 'send_status' is 0 for __mmc_switch | expand

Commit Message

Bough Chen Sept. 22, 2020, 10:11 a.m. UTC
From: Haibo Chen <haibo.chen@nxp.com>

According to the code logic in __mmc_switch, if the parameter 'send_status'
is zero, no need to send cmd13, just wait the stated timeout time, then
can return directly.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
 drivers/mmc/mmc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series


diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index d79cdef62e..6cb2af4232 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -805,8 +805,10 @@  static int __mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value,
 	 * capable of polling by using mmc_wait_dat0, then rely on waiting the
 	 * stated timeout to be sufficient.
-	if (ret == -ENOSYS && !send_status)
+	if (ret == -ENOSYS && !send_status) {
+		return 0;
+	}
 	/* Finally wait until the card is ready or indicates a failure
 	 * to switch. It doesn't hurt to use CMD13 here even if send_status