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| author |   Marek Szyprowski <m.szyprowski@samsung.com> | 2012-07-12 17:29:55 +0900 |
|---|---|---|
| committer |   Kukjin Kim <kgene.kim@samsung.com> | 2012-07-12 17:29:55 +0900 |
| commit | ebc35c726298ba3fdebba316a592735268a520bc (patch) | |
| tree | 9c252513c49338d00d9148efb4366e92ee425578 /arch/arm/mach-exynos/pm_domains.c | |
| parent | ARM: EXYNOS: read initial state of power domain from hw registers (diff) | |
| download | linux-dev-ebc35c726298ba3fdebba316a592735268a520bc.tar.xz linux-dev-ebc35c726298ba3fdebba316a592735268a520bc.zip | |
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>
Diffstat (limited to 'arch/arm/mach-exynos/pm_domains.c')
| -rw-r--r-- | arch/arm/mach-exynos/pm_domains.c | 4 |
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); |