From: Dinh Nguyen <dinguyen@xxxxxxxxxx>
The Handle the Hardware Locked Write Error(HLE) was getting triggered
intermittently on the SOCFPGA platform. But since the driver did not
have a mechanism to handle this interrupt, it was stuck in the ISR.
Clear the HLE interrupt when it gets triggered.
Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Cc: Doug Anderson <dianders@xxxxxxxxxxxx>
Cc: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Cc: James Hogan <james.hogan@xxxxxxxxxx>
Cc: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
Cc: Chris Ball <cjb@xxxxxxxxxx>
---
drivers/mmc/host/dw_mmc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index ee5f167..ef30bec 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1664,6 +1664,9 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
queue_work(host->card_workqueue, &host->card_work);
}
+ if (pending & SDMMC_INT_HLE)
+ mci_writel(host, RINTSTS, SDMMC_INT_HLE);
+
/* Handle SDIO Interrupts */
for (i = 0; i < host->num_slots; i++) {
struct dw_mci_slot *slot = host->slot[i];
--
1.7.9.5
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