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drm/msm: Add pm_suspend/resume callbacks to msm_kms

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Used by the dpu driver for custom suspend/resume.

Changes in v3:
- None

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
[seanpaul split this out of the megapatch]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jeykumar Sankaran 2018-06-27 15:24:17 -04:00 committed by Sean Paul
parent 2b7ac1a898
commit 036bfeb33b
2 changed files with 13 additions and 0 deletions
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10
drivers/gpu/drm/msm/msm_drv.c
View File

@ -903,6 +903,11 @@ static int msm_pm_suspend(struct device *dev)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct msm_drm_private *priv = ddev->dev_private;
struct msm_kms *kms = priv->kms;
/* TODO: Use atomic helper suspend/resume */
if (kms && kms->funcs && kms->funcs->pm_suspend)
return kms->funcs->pm_suspend(dev);
drm_kms_helper_poll_disable(ddev);
@ -919,6 +924,11 @@ static int msm_pm_resume(struct device *dev)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct msm_drm_private *priv = ddev->dev_private;
struct msm_kms *kms = priv->kms;
/* TODO: Use atomic helper suspend/resume */
if (kms && kms->funcs && kms->funcs->pm_resume)
return kms->funcs->pm_resume(dev);
drm_atomic_helper_resume(ddev, priv->pm_state);
drm_kms_helper_poll_enable(ddev);

3
drivers/gpu/drm/msm/msm_kms.h
View File

@ -61,6 +61,9 @@ struct msm_kms_funcs {
void (*set_encoder_mode)(struct msm_kms *kms,
struct drm_encoder *encoder,
bool cmd_mode);
/* pm suspend/resume hooks */
int (*pm_suspend)(struct device *dev);
int (*pm_resume)(struct device *dev);
/* cleanup: */
void (*destroy)(struct msm_kms *kms);
#ifdef CONFIG_DEBUG_FS