diff options
Diffstat (limited to '0028-mmc-mtk-sd-Clear-interrupts-when-cqe-off-disable.patch')
| -rw-r--r-- | 0028-mmc-mtk-sd-Clear-interrupts-when-cqe-off-disable.patch | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/0028-mmc-mtk-sd-Clear-interrupts-when-cqe-off-disable.patch b/0028-mmc-mtk-sd-Clear-interrupts-when-cqe-off-disable.patch deleted file mode 100644 index e2a9459eb7f4..000000000000 --- a/0028-mmc-mtk-sd-Clear-interrupts-when-cqe-off-disable.patch +++ /dev/null @@ -1,58 +0,0 @@ -From 1c137c46d16e33b71ef92daf1882d5443fa2ec93 Mon Sep 17 00:00:00 2001 -From: Wenbin Mei <wenbin.mei@mediatek.com> -Date: Thu, 28 Jul 2022 16:00:48 +0800 -Subject: [PATCH 28/73] mmc: mtk-sd: Clear interrupts when cqe off/disable - -[ Upstream commit cc5d1692600613e72f32af60e27330fe0c79f4fe ] - -Currently we don't clear MSDC interrupts when cqe off/disable, which led -to the data complete interrupt will be reserved for the next command. -If the next command with data transfer after cqe off/disable, we process -the CMD ready interrupt and trigger DMA start for data, but the data -complete interrupt is already exists, then SW assume that the data transfer -is complete, SW will trigger DMA stop, but the data may not be transmitted -yet or is transmitting, so we may encounter the following error: -mtk-msdc 11230000.mmc: CMD bus busy detected. - -Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com> -Fixes: 88bd652b3c74 ("mmc: mediatek: command queue support") -Cc: stable@vger.kernel.org -Link: https://lore.kernel.org/r/20220728080048.21336-1-wenbin.mei@mediatek.com -Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> -Signed-off-by: Sasha Levin <sashal@kernel.org> ---- - drivers/mmc/host/mtk-sd.c | 6 ++++++ - 1 file changed, 6 insertions(+) - -diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c -index 9da4489dc345..378a26a1825c 100644 ---- a/drivers/mmc/host/mtk-sd.c -+++ b/drivers/mmc/host/mtk-sd.c -@@ -2414,6 +2414,9 @@ static void msdc_cqe_disable(struct mmc_host *mmc, bool recovery) - /* disable busy check */ - sdr_clr_bits(host->base + MSDC_PATCH_BIT1, MSDC_PB1_BUSY_CHECK_SEL); - -+ val = readl(host->base + MSDC_INT); -+ writel(val, host->base + MSDC_INT); -+ - if (recovery) { - sdr_set_field(host->base + MSDC_DMA_CTRL, - MSDC_DMA_CTRL_STOP, 1); -@@ -2871,11 +2874,14 @@ static int __maybe_unused msdc_suspend(struct device *dev) - { - struct mmc_host *mmc = dev_get_drvdata(dev); - int ret; -+ u32 val; - - if (mmc->caps2 & MMC_CAP2_CQE) { - ret = cqhci_suspend(mmc); - if (ret) - return ret; -+ val = readl(((struct msdc_host *)mmc_priv(mmc))->base + MSDC_INT); -+ writel(val, ((struct msdc_host *)mmc_priv(mmc))->base + MSDC_INT); - } - - return pm_runtime_force_suspend(dev); --- -2.37.3 - |