This is a note to let you know that I've just added the patch titled
mmc: dw_mmc: exynos: fix the suspend/resume issue for exynos5433
to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: mmc-dw_mmc-exynos-fix-the-suspend-resume-issue-for-exynos5433.patch and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From e22842dd64bf86753d3f2b6ea474d73fc1e6ca24 Mon Sep 17 00:00:00 2001
From: Jaehoon Chung jh80.chung@samsung.com Date: Fri, 9 Mar 2018 15:10:21 +0900 Subject: mmc: dw_mmc: exynos: fix the suspend/resume issue for exynos5433
From: Jaehoon Chung jh80.chung@samsung.com
commit e22842dd64bf86753d3f2b6ea474d73fc1e6ca24 upstream.
Before enabling the clock, dwmmc exynos driver is trying to access the register. Then the kernel panic can be occurred.
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com Reviewed-by: Chanwoo Choi cw00.choi@samsung.com Tested-by: Chanwoo Choi cw00.choi@samsung.com Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/mmc/host/dw_mmc-exynos.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -165,9 +165,15 @@ static void dw_mci_exynos_set_clksel_tim static int dw_mci_exynos_runtime_resume(struct device *dev) { struct dw_mci *host = dev_get_drvdata(dev); + int ret; + + ret = dw_mci_runtime_resume(dev); + if (ret) + return ret;
dw_mci_exynos_config_smu(host); - return dw_mci_runtime_resume(dev); + + return ret; }
/**
Patches currently in stable-queue which might be from jh80.chung@samsung.com are
queue-4.15/mmc-dw_mmc-fix-the-dto-cto-timeout-overflow-calculation-for-32-bit-systems.patch queue-4.15/mmc-dw_mmc-exynos-fix-the-suspend-resume-issue-for-exynos5433.patch queue-4.15/mmc-dw_mmc-fix-falling-from-idmac-to-pio-mode-when-dw_mci_reset-occurs.patch