From 4740b0f2b80cc7810bf5fa871189c318b08dbc46 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Wed, 5 Aug 2015 12:37:10 +0200 Subject: [PATCH] drm/i915: Only update mode related state if a modeset happened. The rest will be a noop anyway, since without modeset there will be no updated dplls and no modeset state to update. Signed-off-by: Maarten Lankhorst Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 30 +++++++--------------------- 1 file changed, 7 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 06be517c247e..dc4812a493f5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -12183,33 +12183,15 @@ fail: return ret; } -static bool intel_crtc_in_use(struct drm_crtc *crtc) -{ - struct drm_encoder *encoder; - struct drm_device *dev = crtc->dev; - - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) - if (encoder->crtc == crtc) - return true; - - return false; -} - static void -intel_modeset_update_state(struct drm_atomic_state *state) +intel_modeset_update_crtc_state(struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; int i; - intel_shared_dpll_commit(state); - - drm_atomic_helper_update_legacy_modeset_state(state->dev, state); - /* Double check state. */ for_each_crtc_in_state(state, crtc, crtc_state, i) { - WARN_ON(crtc->state->enable != intel_crtc_in_use(crtc)); - to_intel_crtc(crtc)->config = to_intel_crtc_state(crtc->state); /* Update hwmode for vblank functions */ @@ -13112,12 +13094,14 @@ static int intel_atomic_commit(struct drm_device *dev, /* Only after disabling all output pipelines that will be changed can we * update the the output configuration. */ - intel_modeset_update_state(state); + intel_modeset_update_crtc_state(state); - /* The state has been swaped above, so state actually contains the - * old state now. */ - if (any_ms) + if (any_ms) { + intel_shared_dpll_commit(state); + + drm_atomic_helper_update_legacy_modeset_state(state->dev, state); modeset_update_crtc_power_domains(state); + } /* Now enable the clocks, plane, pipe, and connectors that we set up. */ for_each_crtc_in_state(state, crtc, crtc_state, i) { -- 2.30.2