From: Jani Nikula Date: Fri, 30 Aug 2013 16:40:32 +0000 (+0300) Subject: drm/i915: do display power state notification on crtc enable/disable X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8807e55b3a1bf7b159dcefa4504e204df364d4a1;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm/i915: do display power state notification on crtc enable/disable 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 Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e16b997bfd0b..24c3937999de 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3427,8 +3427,10 @@ 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 @@ -3542,8 +3544,10 @@ 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);