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authorMarek Szyprowski <m.szyprowski@samsung.com>2012-07-12 17:29:55 +0900
committerKukjin Kim <kgene.kim@samsung.com>2012-07-12 17:29:55 +0900
commitebc35c726298ba3fdebba316a592735268a520bc (patch)
tree9c252513c49338d00d9148efb4366e92ee425578
parent76eb5567afd18aa0a61fd31cd80fb80b616aaba4 (diff)
ARM: EXYNOS: register devices in 'need_restore' state for pm_domains
Commit ca1d72f033 ('PM / Domains: Make it possible to add devices to inactive domains') introduced possibility to add devices to inactive power domains and added pm_genpd_dev_need_restore() function which lets platform core to notify power domain core that the specified device must be restored (with its runtime_resume() callback) before first use. This patch adds the pm_genpd_dev_need_restore() call what brings back the suspend/resume behaviour for the client devices known from the previous power domain driver (removed by commit 91cfbd4ee0 - 'ARM: EXYNOS: Hook up power domains to generic power domain infrastructure'). Client device drivers relay on that suspend/resume behaviour, thus this patch fixes runtime pm operation for client devices. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
-rw-r--r--arch/arm/mach-exynos/pm_domains.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index 0a952a5c45bd..373c3c00d24c 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -119,7 +119,9 @@ static __init void exynos_pm_add_dev_to_genpd(struct platform_device *pdev,
struct exynos_pm_domain *pd)
{
if (pdev->dev.bus) {
- if (pm_genpd_add_device(&pd->pd, &pdev->dev))
+ if (!pm_genpd_add_device(&pd->pd, &pdev->dev))
+ pm_genpd_dev_need_restore(&pdev->dev, true);
+ else
pr_info("%s: error in adding %s device to %s power"
"domain\n", __func__, dev_name(&pdev->dev),
pd->name);