From c750c22b2456bcd8c50067424ccabf2686306cda Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Fri, 20 Sep 2019 13:42:21 +0200 Subject: [PATCH] drm/i915: Do not add all planes when checking scalers on glk+ We cannot switch between HQ and normal mode on GLK+, so only add planes on platforms where it makes sense. We could probably restrict it even more to only add when scaler users toggles between 1 and 2, but lets just leave it for now. Signed-off-by: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/20190920114235.22411-9-maarten.lankhorst@linux.intel.com Reviewed-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_atomic.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index 99f4f83de2800..c5a552a697527 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -373,6 +373,15 @@ int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv, */ if (!plane) { struct drm_plane_state *state; + + /* + * GLK+ scalers don't have a HQ mode so it + * isn't necessary to change between HQ and dyn mode + * on those platforms. + */ + if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) + continue; + plane = drm_plane_from_index(&dev_priv->drm, i); state = drm_atomic_get_plane_state(drm_state, plane); if (IS_ERR(state)) { -- 2.30.2