From: Jerry Huang <chang-ming.hu...@freescale.com>
power on before detecting card.
The driver will not get the right status when using the callback function
'get_cd' to check if the card is present because the power is not on.
Therefore, the controller must be power on before detecting the card status.
Signed-off-by: Jerry Huang <chang-ming.hu...@freescale.com>
---
drivers/mmc/core/core.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 7dab2e5..7b3aee1 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1067,12 +1067,13 @@ void mmc_rescan(struct work_struct *work)
*/
mmc_bus_put(host);
+ mmc_power_up(host);
+
if (host->ops->get_cd && host->ops->get_cd(host) == 0)
goto out;
mmc_claim_host(host);
- mmc_power_up(host);
mmc_go_idle(host);
mmc_send_if_cond(host, host->ocr_avail);
--
1.6.4
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