drm/i915: Add debugs for the C8 vs. legacy LUT case (be8a4b2d) · Commits · 戴 / test

Leave a hint in dmesg when we reject a configuration attempting to use C8 planes without the legacy LUT loaded. Signed-off-by:

drivers/gpu/drm/i915/intel_color.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -959,8 +959,10 @@ static int check_luts(const struct intel_crtc_state *crtc_state)
		return 0;

		/* C8 relies on its palette being stored in the legacy LUT */
		if (crtc_state->c8_planes)
		if (crtc_state->c8_planes) {
		DRM_DEBUG_KMS("C8 pixelformat requires the legacy LUT\n");
		return -EINVAL;
		}

		degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size;
		gamma_length = INTEL_INFO(dev_priv)->color.gamma_lut_size;