mmc: dw_mmc: fix the transfer termination in IDMAC mode
In IDMAC mode EVENT_XFER_COMPLETE is set when RI/TI of last descriptor
is done. So if errors are happened in the middle of data transfers,
'dw_mci_stop_dma' during error handing can be called and eventually
prevents this flag to be set. This results in permanent wait for
EVENT_XFER_COMPLETE in 'dw_mci_tasklet_func'. Therefore, if dma
running is stopped forcibly, EVENT_XFER_COMPLETE should be set.
Reported-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 05c239f..0a6a512 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -345,10 +345,10 @@
if (host->using_dma) {
host->dma_ops->stop(host);
host->dma_ops->cleanup(host);
- } else {
- /* Data transfer was stopped by the interrupt handler */
- set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
}
+
+ /* Data transfer was stopped by the interrupt handler */
+ set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
}
static int dw_mci_get_dma_dir(struct mmc_data *data)