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drm/msm: call drm_atomic_helper_suspend() and drm_atomic_helper_resume()

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To make suspend and resume work on msm8916 platforms, call into the generic
helpers and preserve the state across suspends.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Daniel Mack 2018-05-28 21:53:38 +02:00 committed by Rob Clark
parent 500775074f
commit ec446d0936
2 changed files with 10 additions and 0 deletions
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9
drivers/gpu/drm/msm/msm_drv.c
View File

@ -894,16 +894,25 @@ static struct drm_driver msm_driver = {
static int msm_pm_suspend(struct device *dev)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct msm_drm_private *priv = ddev->dev_private;
drm_kms_helper_poll_disable(ddev);
priv->pm_state = drm_atomic_helper_suspend(ddev);
if (IS_ERR(priv->pm_state)) {
drm_kms_helper_poll_enable(ddev);
return PTR_ERR(priv->pm_state);
}
return 0;
}
static int msm_pm_resume(struct device *dev)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct msm_drm_private *priv = ddev->dev_private;
drm_atomic_helper_resume(ddev, priv->pm_state);
drm_kms_helper_poll_enable(ddev);
return 0;

1
drivers/gpu/drm/msm/msm_drv.h
View File

@ -150,6 +150,7 @@ struct msm_drm_private {
struct shrinker shrinker;
struct msm_vblank_ctrl vblank_ctrl;
struct drm_atomic_state *pm_state;
};
struct msm_format {