Don't turn SDIO cards off to save power. Doing so will lose all
internal state in the card.
Signed-off-by: David Vrabel <david.vrabel@xxxxxxx>
---
drivers/mmc/host/omap_hsmmc.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index e7142a2..e6d8cb3 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -28,6 +28,7 @@
#include <linux/clk.h>
#include <linux/mmc/host.h>
#include <linux/mmc/core.h>
+#include <linux/mmc/card.h>
#include <linux/io.h>
#include <linux/semaphore.h>
#include <plat/dma.h>
@@ -1359,8 +1360,12 @@ static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host)
mmc_slot(host).card_detect ||
(mmc_slot(host).get_cover_state &&
mmc_slot(host).get_cover_state(host->dev, host->slot_id)))) {
- mmc_release_host(host->mmc);
- return 0;
+ goto out;
+ }
+
+ /* Don't turn SDIO cards off. */
+ if (host->mmc->card && mmc_card_sdio(host->mmc->card)) {
+ goto out;
}
mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0);
@@ -1371,9 +1376,8 @@ static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host)
host->dpm_state == CARDSLEEP ? "CARDSLEEP" : "REGSLEEP");
host->dpm_state = OFF;
-
+out:
mmc_release_host(host->mmc);
-
return 0;
}
--
1.6.3.3
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