mmc: tmio: clear error IRQ status

Next card access will be always
error if it didn't clear error status

Tested-by: Nguyen Xuan Nui <nx-nui@jinso.co.jp>
Tested-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit f83bfa751babb521924f6d8c93055215d2eb33cc)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index a993208..3d0ad73 100644 (file)
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -572,6 +572,9 @@ static void tmio_mmc_card_irq_status(struct tmio_mmc_host *host,
 
        pr_debug_status(*status);
        pr_debug_status(*ireg);
+
+       /* Clear the status except the interrupt status */
+       sd_ctrl_write32(host, CTL_STATUS, TMIO_MASK_IRQ);
 }
 
 static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,