The spec says to notify prior to power down and after power up. It is
unclear whether it makes a difference.
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index bcb62fe..a6df68e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3404,8 +3404,10 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
intel_update_fbc(dev);
mutex_unlock(&dev->struct_mutex);
- for_each_encoder_on_crtc(dev, crtc, encoder)
+ for_each_encoder_on_crtc(dev, crtc, encoder) {
encoder->enable(encoder);
+ intel_opregion_notify_encoder(encoder, true);
+ }
/*
* There seems to be a race in PCH platform hw (at least on some
@@ -3519,8 +3521,10 @@ static void haswell_crtc_disable(struct drm_crtc *crtc)
if (!intel_crtc->active)
return;
- for_each_encoder_on_crtc(dev, crtc, encoder)
+ for_each_encoder_on_crtc(dev, crtc, encoder) {
+ intel_opregion_notify_encoder(encoder, false);
encoder->disable(encoder);
+ }
intel_crtc_wait_for_pending_flips(crtc);
drm_vblank_off(dev, pipe);
--
1.7.9.5
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