mmc: sdio: add reset callback to bus operations
Some drivers schedule automatic hw resets. An example is mwifiex,
which schedules a card reset if the command handler between driver
and card firmware becomes out of sync
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 5bc6c7d..f6c28a7e 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -1056,6 +1056,12 @@
return mmc_sdio_power_restore(host);
}
+static int mmc_sdio_reset(struct mmc_host *host)
+{
+ mmc_power_cycle(host, host->card->ocr);
+ return mmc_sdio_power_restore(host);
+}
+
static const struct mmc_bus_ops mmc_sdio_ops = {
.remove = mmc_sdio_remove,
.detect = mmc_sdio_detect,
@@ -1066,6 +1072,7 @@
.runtime_resume = mmc_sdio_runtime_resume,
.power_restore = mmc_sdio_power_restore,
.alive = mmc_sdio_alive,
+ .reset = mmc_sdio_reset,
};