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mmc: dw_mmc: exynos: fix the suspend/resume issue for exynos5433 

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>
This commit is contained in:
Jaehoon Chung 2018-03-09 15:10:21 +09:00 committed by Ulf Hansson
parent e74ef2194b
commit e22842dd64
1 changed files with 7 additions and 1 deletions
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8
drivers/mmc/host/dw_mmc-exynos.c
View File

@ -165,9 +165,15 @@ static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing)
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;
}
/**