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Subject[PATCH 2/4] mmc: mmci: fix clear of busy detect status
Date
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 --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);
--
2.7.4
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