From: Ulf Hansson Date: Mon, 25 Aug 2014 10:18:26 +0000 (+0200) Subject: mmc: sdhi: Fixup system PM suspend lock-up X-Git-Tag: upstream/snapshot3+hdmi~21^2~15 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c78fa0fde6f2432029d6f352dd825763c939d038;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git mmc: sdhi: Fixup system PM suspend lock-up At system PM suspend, the tmio core accessed the internal registers of the controller without first moving the device into active state. This caused a lock-up in system PM suspend phase. The reason for the register access were masking of IRQs. Since that is managed via the runtime PM suspend path, let's just re-use that path for system PM suspend. In other words force the device into runtime PM suspend state at system PM suspend and restore it to active state at system PM resume. Reported-by: Geert Uytterhoeven Signed-off-by: Ulf Hansson Tested-by: Geert Uytterhoeven (cherry picked from commit 753a688c9f28ad3198611bbbd39f3b226c35ab98) Signed-off-by: Simon Horman --- diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c index bc1b33635..e332db8 100644 --- a/drivers/mmc/host/sh_mobile_sdhi.c +++ b/drivers/mmc/host/sh_mobile_sdhi.c @@ -332,7 +332,8 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev) } static const struct dev_pm_ops tmio_mmc_dev_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(tmio_mmc_host_suspend, tmio_mmc_host_resume) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) SET_PM_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend, tmio_mmc_host_runtime_resume, NULL)