This will hopefully make it easier to navigate the code without the need
to consult the full PM documentation.
v2:
- add a comment that the freeze handler is also called after rebooting
Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index b5508ae..538a658 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1504,10 +1504,24 @@ static int intel_resume_prepare(struct drm_i915_private *dev_priv,
}
static const struct dev_pm_ops i915_pm_ops = {
+ /* S0ix, S3 event handlers */
.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 hibernation
+ * image and (2) after rebooting, before
+ * restoring the image
+ * @thaw, @thaw_early : called after creating hibernation image,
+ * before writing it
+ * @poweroff, @poweroff_late: called after writing hibernation image,
+ * before rebooting
+ * @restore, @restore_early : called after rebooting and restoring the
+ * image
+ */
.freeze = i915_pm_suspend,
.freeze_late = i915_pm_suspend_late,
.thaw_early = i915_pm_resume_early,
@@ -1516,6 +1530,8 @@ 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,
+
+ /* D0<->D3 (runtime PM) event handlers */
.runtime_suspend = intel_runtime_suspend,
.runtime_resume = intel_runtime_resume,
};
--
1.8.4
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