Commit d4a384cb authored Mar 25, 2020 by Ludovic Barre Committed by Ulf Hansson Mar 26, 2020

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: 0e68de6a ("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>

parent ffae422d

drivers/mmc/host/mmci_stm32_sdmmc.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}

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