From: Ludovic Barre ludovic.barre@st.com
commit d4a384cb563e555ce00255f5f496b503e6cc6358 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/mmc/host/mmci_stm32_sdmmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/mmc/host/mmci_stm32_sdmmc.c +++ b/drivers/mmc/host/mmci_stm32_sdmmc.c @@ -315,11 +315,11 @@ 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; }