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authorLudovic Barre <ludovic.barre@st.com>2020-03-25 15:34:08 +0100
committerUlf Hansson <ulf.hansson@linaro.org>2020-03-26 14:59:31 +0100
commitd4a384cb563e555ce00255f5f496b503e6cc6358 (patch)
treeedc5d76165d992929435e4d6e6eef32db221c637 /drivers/mmc
parentdt-bindings: mmc: Fix node name in an example (diff)
downloadlinux-d4a384cb563e555ce00255f5f496b503e6cc6358.tar.xz
linux-d4a384cb563e555ce00255f5f496b503e6cc6358.zip
mmc: mmci_sdmmc: Fix clear busyd0end irq flag
The busyd0 line transition can be very fast. The busy request may be completed by busy_d0end, without waiting for the busy_d0 steps. Therefore, clear the busyd0end irq flag, even if no busy_status. Fixes: 0e68de6aa7b1 ("mmc: mmci: sdmmc: add busy_complete callback") Cc: stable@vger.kernel.org Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Link: https://lore.kernel.org/r/20200325143409.13005-2-ludovic.barre@st.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/mmci_stm32_sdmmc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/host/mmci_stm32_sdmmc.c b/drivers/mmc/host/mmci_stm32_sdmmc.c
index f76e82f8f12f..d33e62bd6153 100644
--- a/drivers/mmc/host/mmci_stm32_sdmmc.c
+++ b/drivers/mmc/host/mmci_stm32_sdmmc.c
@@ -358,11 +358,11 @@ complete:
if (host->busy_status) {
writel_relaxed(mask & ~host->variant->busy_detect_mask,
base + MMCIMASK0);
- writel_relaxed(host->variant->busy_detect_mask,
- base + MMCICLEAR);
host->busy_status = 0;
}
+ writel_relaxed(host->variant->busy_detect_mask, base + MMCICLEAR);
+
return true;
}