mmc: tmio: reset the controller after power-up
This fixes two reported problems:
1. after a system resume the controller isn't functioning until a command
runs on a timeout and a controller reset is performed.
2. if a card is ejected during a running write operation, its re-insertion
isn't detected.
Reported-by: Nguyen Viet Dung <nv-dung@jinso.co.jp>
Reported-by: Nguyen Hong Ky <nh-ky@jinso.co.jp>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Tested-by: Nguyen Viet Dung <nv-dung@jinso.co.jp>
Tested-by: Nguyen Hong Ky <nh-ky@jinso.co.jp>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index 67d9642..f294708 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -867,6 +867,8 @@
host->resuming = false;
}
}
+ if (host->power == TMIO_MMC_OFF_STOP)
+ tmio_mmc_reset(host);
tmio_mmc_set_clock(host, ios->clock);
if (host->power == TMIO_MMC_OFF_STOP)
/* power up SD card and the bus */
@@ -1186,7 +1188,6 @@
struct mmc_host *mmc = dev_get_drvdata(dev);
struct tmio_mmc_host *host = mmc_priv(mmc);
- tmio_mmc_reset(host);
tmio_mmc_enable_dma(host, true);
return 0;