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mmc: do not send cmd13 if the parameter 'send_status' is 0 for __mmc_switch

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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>
This commit is contained in:
Haibo Chen
2020-09-22 18:11:42 +08:00
committed by Peng Fan
parent d3c610c623
commit ef5ab0d13a
1 changed files with 3 additions and 1 deletions
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4
drivers/mmc/mmc.c
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@@ -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) {
mdelay(timeout_ms);
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