From: Rodrigo Vivi Date: Thu, 11 Jul 2013 21:45:05 +0000 (-0300) Subject: drm/i915: Hook PSR functionality X-Git-Tag: firefly_0821_release~176^2~5263^2~143^2~39 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4906557eb37b7fef84fad4304acef6dedf919880;p=firefly-linux-kernel-4.4.55.git drm/i915: Hook PSR functionality PSR must be enabled after transcoder and port are running. And it is only available for HSW. v2: move enable/disable to intel_ddi v3: The spec suggests PSR should be disabled even before backlight (by pzanoni) v4: also disabling and enabling whenever panel is disabled/enabled. v5: make it last patch to avoid breaking whenever bisecting. So calling for update and force exit came to this patch along with enable/disable calls. v6: Remove unused and unecessary psr_enable/disable calls, as notice by Paulo. CC: Paulo Zanoni Signed-off-by: Rodrigo Vivi [danvet: Drop the psr exit code in the busy ioctl since I didn't merge that part of the infrastructure yet - it needs more thought.] Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 324211ac9c55..421192542c31 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1117,6 +1117,7 @@ static void intel_enable_ddi(struct intel_encoder *intel_encoder) intel_dp_stop_link_train(intel_dp); ironlake_edp_backlight_on(intel_dp); + intel_edp_psr_enable(intel_dp); } if (intel_crtc->eld_vld && type != INTEL_OUTPUT_EDP) { @@ -1147,6 +1148,7 @@ static void intel_disable_ddi(struct intel_encoder *intel_encoder) if (type == INTEL_OUTPUT_EDP) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); + intel_edp_psr_disable(intel_dp); ironlake_edp_backlight_off(intel_dp); } } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3cda57d7b3f0..94cb0ad604d7 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2274,6 +2274,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, } intel_update_fbc(dev); + intel_edp_psr_update(dev); mutex_unlock(&dev->struct_mutex); intel_crtc_update_sarea_pos(crtc, x, y);