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drm/exynos: g2d: fix system and runtime pm integration 

Move code from system sleep pm to runtime pm callbacks to ensure proper
driver state preservation when device is under power domain. Then, use
generic helpers for using runtime pm for system sleep pm.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Marek Szyprowski 2016-08-31 14:55:57 +02:00 committed by Inki Dae
parent 5b67723e60
commit b05984e21a
1 changed files with 7 additions and 22 deletions
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29
drivers/gpu/drm/exynos/exynos_drm_g2d.c
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@ -1475,8 +1475,8 @@ static int g2d_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int g2d_suspend(struct device *dev)
#ifdef CONFIG_PM
static int g2d_runtime_suspend(struct device *dev)
{
struct g2d_data *g2d = dev_get_drvdata(dev);
@ -1490,25 +1490,6 @@ static int g2d_suspend(struct device *dev)
flush_work(&g2d->runqueue_work);
return 0;
}
static int g2d_resume(struct device *dev)
{
struct g2d_data *g2d = dev_get_drvdata(dev);
g2d->suspended = false;
g2d_exec_runqueue(g2d);
return 0;
}
#endif
#ifdef CONFIG_PM
static int g2d_runtime_suspend(struct device *dev)
{
struct g2d_data *g2d = dev_get_drvdata(dev);
clk_disable_unprepare(g2d->gate_clk);
return 0;
@ -1523,12 +1504,16 @@ static int g2d_runtime_resume(struct device *dev)
if (ret < 0)
dev_warn(dev, "failed to enable clock.\n");
g2d->suspended = false;
g2d_exec_runqueue(g2d);
return ret;
}
#endif
static const struct dev_pm_ops g2d_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(g2d_suspend, g2d_resume)
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
SET_RUNTIME_PM_OPS(g2d_runtime_suspend, g2d_runtime_resume, NULL)
};