Commite22842d

jh80chung

authored and

storulf

committed

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

Before enabling the clock, dwmmc exynos driver is trying to access theregister. 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.orgSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 parente74ef21 commite22842dCopy full SHA for e22842d

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drivers/mmc/host
- dw_mmc-exynos.c

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`‎drivers/mmc/host/dw_mmc-exynos.c‎`

Lines changed: 7 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -165,9 +165,15 @@ static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing)`
`165`	`165`	`staticintdw_mci_exynos_runtime_resume(structdevice*dev)`
`166`	`166`	`{`
`167`	`167`	`structdw_mci*host=dev_get_drvdata(dev);`
	`168`	`+intret;`
	`169`	`+`
	`170`	`+ret=dw_mci_runtime_resume(dev);`
	`171`	`+if (ret)`
	`172`	`+returnret;`
`168`	`173`
`169`	`174`	`dw_mci_exynos_config_smu(host);`
`170`		`-returndw_mci_runtime_resume(dev);`
	`175`	`+`
	`176`	`+returnret;`
`171`	`177`	`}`
`172`	`178`
`173`	`179`	`/**`

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Commite22842d

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`‎drivers/mmc/host/dw_mmc-exynos.c‎`

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