diff mbox series

[2/4] mmc: mmci: fix clear of busy detect status

Message ID 1551802205-32188-3-git-send-email-ludovic.Barre@st.com (mailing list archive)
State New, archived
Headers show
Series mmc: mmci: add busy detect for stm32 sdmmc variant | expand

Commit Message

Ludovic BARRE March 5, 2019, 4:10 p.m. UTC 
From: Ludovic Barre <ludovic.barre@st.com>

The "busy_detect_flag" is used to read/clear busy value of
mmci status. The "busy_detect_mask" is used to manage busy irq of
mmci mask.
For sdmmc variant, the 2 properties have not the same offset.
To clear the busyd0 status bit, we must add busy detect flag,
the mmci mask is not enough.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
---
 drivers/mmc/host/mmci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 4901b73..3fa4386 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1533,7 +1533,8 @@  static irqreturn_t mmci_irq(int irq, void *dev_id)
 		 * to make sure that both start and end interrupts are always
 		 * cleared one after the other.
 		 */
-		status &= readl(host->base + MMCIMASK0);
+		status &= readl(host->base + MMCIMASK0) |
+			host->variant->busy_detect_flag;
 		if (host->variant->busy_detect)
 			writel(status & ~host->variant->busy_detect_mask,
 			       host->base + MMCICLEAR);