drm/i915/cnl: Cannonlake color init.

Cannonlake has same color setup as Geminilake.
Legacy color load luts doesn't work anymore on Cannonlake+.

Cc: Clint Taylor <clinton.a.taylor@intel.com>
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Clinton Taylor <clinton.a.taylor@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1499374873-2454-1-git-send-email-rodrigo.vivi@intel.com

drivers/gpu/drm/i915/i915_pci.c

@@ -449,6 +449,7 @@ static const struct intel_device_info intel_cannonlake_info = {
 	.gen = 10,
 	.ddb_size = 1024,
 	.has_csr = 1,
+	.color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }
 };
 
 /*

drivers/gpu/drm/i915/intel_color.c

@@ -615,7 +615,7 @@ void intel_color_init(struct drm_crtc *crtc)
 		   IS_BROXTON(dev_priv)) {
 		dev_priv->display.load_csc_matrix = i9xx_load_csc_matrix;
 		dev_priv->display.load_luts = broadwell_load_luts;
-	} else if (IS_GEMINILAKE(dev_priv)) {
+	} else if (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) {
 		dev_priv->display.load_csc_matrix = i9xx_load_csc_matrix;
 		dev_priv->display.load_luts = glk_load_luts;
 	} else {

drivers/gpu/drm/i915/intel_display.c

@@ -3311,7 +3311,7 @@ u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
 
 	plane_ctl = PLANE_CTL_ENABLE;
 
-	if (!IS_GEMINILAKE(dev_priv)) {
+	if (!IS_GEMINILAKE(dev_priv) && !IS_CANNONLAKE(dev_priv)) {
 		plane_ctl |=
 			PLANE_CTL_PIPE_GAMMA_ENABLE |
 			PLANE_CTL_PIPE_CSC_ENABLE |
@@ -3367,7 +3367,7 @@ static void skylake_update_primary_plane(struct intel_plane *plane,
 
 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
 
-	if (IS_GEMINILAKE(dev_priv)) {
+	if (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) {
 		I915_WRITE_FW(PLANE_COLOR_CTL(pipe, plane_id),
 			      PLANE_COLOR_PIPE_GAMMA_ENABLE |
 			      PLANE_COLOR_PIPE_CSC_ENABLE |

drivers/gpu/drm/i915/intel_sprite.c

@@ -262,7 +262,7 @@ skl_update_plane(struct intel_plane *plane,
 
 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
 
-	if (IS_GEMINILAKE(dev_priv)) {
+	if (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) {
 		I915_WRITE_FW(PLANE_COLOR_CTL(pipe, plane_id),
 			      PLANE_COLOR_PIPE_GAMMA_ENABLE |
 			      PLANE_COLOR_PIPE_CSC_ENABLE |