No need to send CMD13 if host driver supports .card_busy().
Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
---
drivers/mmc/core/block.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 88f4c215..23623a9 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -417,10 +417,17 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
int err = 0;
u32 status;
+ bool busy;
do {
bool done = time_after(jiffies, timeout);
+ if (card->host->ops->card_busy) {
+ busy = card->host->ops->card_busy(card->host);
+ status = busy ? 0 : R1_READY_FOR_DATA | R1_STATE_TRAN << 9;
+ goto cb;
+ }
+
err = __mmc_send_status(card, &status, 5);
if (err) {
dev_err(mmc_dev(card->host),
@@ -442,6 +449,7 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
__func__, status);
return -ETIMEDOUT;
}
+cb:
} while (!mmc_ready_for_data(status));
return err;
--
2.7.4
