From: yong mao <yong.mao@xxxxxxxxxxxx>
When mmc_sdio_resned_if_cond is invoked, it indicates the SDIO
device is not in the right state. In this condition, the previous
implementation of mmc_sdio_resend_if_cond can't make sure SDIO
device be back to idle state. mmc_power_cycle can reset the SDIO
device by HW and also make sure SDIO device enter to idle state
correctly.
Signed-off-by: Yong Mao <yong.mao@xxxxxxxxxxxx>
---
drivers/mmc/core/sdio.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index ebb387a..ada0a80 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -546,6 +546,7 @@ static int mmc_sdio_init_uhs_card(struct mmc_card *card)
static void mmc_sdio_resend_if_cond(struct mmc_host *host,
struct mmc_card *card)
{
+ mmc_power_cycle(host, host->card->ocr);
sdio_reset(host);
mmc_go_idle(host);
mmc_send_if_cond(host, host->ocr_avail);
--
1.9.1
