[PATCH 02/12] drm/i915: Polish CHV .load_luts() a bit

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

It irks me to use crtc_state_is_legacy_gamma() inside the guts
of the CHV color management code. Let's get rid of it and instead
just consult cgm_mode to figure out if we want to enable the pipe
gamma or the CGM gamma.

Also CHV display engine is based on i965/g4x so we should fall back
to the i965 path when the CGM gamma is not used.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 3980e8b50c28..d8ee90b7774a 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -996,16 +996,13 @@ static void chv_load_luts(const struct intel_crtc_state *crtc_state)
 
 	cherryview_load_csc_matrix(crtc_state);
 
-	if (crtc_state_is_legacy_gamma(crtc_state)) {
-		i9xx_load_luts(crtc_state);
-		return;
-	}
-
-	if (degamma_lut)
+	if (crtc_state->cgm_mode & CGM_PIPE_MODE_DEGAMMA)
 		chv_load_cgm_degamma(crtc, degamma_lut);
 
-	if (gamma_lut)
+	if (crtc_state->cgm_mode & CGM_PIPE_MODE_GAMMA)
 		chv_load_cgm_gamma(crtc, gamma_lut);
+	else
+		i965_load_luts(crtc_state);
 }
 
 void intel_color_load_luts(const struct intel_crtc_state *crtc_state)
-- 
2.23.0