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-rw-r--r--drivers/gpu/drm/i915/i915_drv.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index bce58d395b28..035ec94ca3c7 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1534,10 +1534,30 @@ static int intel_resume_prepare(struct drm_i915_private *dev_priv,
}
static const struct dev_pm_ops i915_pm_ops = {
+ /*
+ * S0ix (via system suspend) and S3 event handlers [PMSG_SUSPEND,
+ * PMSG_RESUME]
+ */
.suspend = i915_pm_suspend,
.suspend_late = i915_pm_suspend_late,
.resume_early = i915_pm_resume_early,
.resume = i915_pm_resume,
+
+ /*
+ * S4 event handlers
+ * @freeze, @freeze_late : called (1) before creating the
+ * hibernation image [PMSG_FREEZE] and
+ * (2) after rebooting, before restoring
+ * the image [PMSG_QUIESCE]
+ * @thaw, @thaw_early : called (1) after creating the hibernation
+ * image, before writing it [PMSG_THAW]
+ * and (2) after failing to create or
+ * restore the image [PMSG_RECOVER]
+ * @poweroff, @poweroff_late: called after writing the hibernation
+ * image, before rebooting [PMSG_HIBERNATE]
+ * @restore, @restore_early : called after rebooting and restoring the
+ * hibernation image [PMSG_RESTORE]
+ */
.freeze = i915_pm_suspend,
.freeze_late = i915_pm_suspend_late,
.thaw_early = i915_pm_resume_early,
@@ -1546,6 +1566,8 @@ static const struct dev_pm_ops i915_pm_ops = {
.poweroff_late = i915_pm_suspend_late,
.restore_early = i915_pm_resume_early,
.restore = i915_pm_resume,
+
+ /* S0ix (via runtime suspend) event handlers */
.runtime_suspend = intel_runtime_suspend,
.runtime_resume = intel_runtime_resume,
};