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authorJeykumar Sankaran <jsanka@codeaurora.org>2018-06-27 15:24:17 -0400
committerSean Paul <seanpaul@chromium.org>2018-07-26 10:40:16 -0400
commit036bfeb33b89578ab924fa198213260659e08dc8 (patch)
treeb9ab03d8ab2976b4b44fc544638ca46de4299f3f /drivers
parent2b7ac1a8989829b085fae9750817ca3304047c04 (diff)
drm/msm: Add pm_suspend/resume callbacks to msm_kms
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/msm/msm_drv.c10
-rw-r--r--drivers/gpu/drm/msm/msm_kms.h3
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 8bd9fe831968..e79ad74ca98c 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -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);
diff --git a/drivers/gpu/drm/msm/msm_kms.h b/drivers/gpu/drm/msm/msm_kms.h
index 761bb07cd7bf..c15de28ae2dd 100644
--- a/drivers/gpu/drm/msm/msm_kms.h
+++ b/drivers/gpu/drm/msm/msm_kms.h
@@ -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