[CI 2/9] drm/i915/display: extract glk_plane_color_ctl_input_csc helper

[Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>]

Extract the input CSC and YUV range correction logic from
glk_plane_color_ctl() into a dedicated glk_plane_color_ctl_input_csc()
helper. No functional change.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 .../drm/i915/display/skl_universal_plane.c    | 32 +++++++++++--------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 5cda1ab90e40..f6db8ee691a2 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -1245,37 +1245,43 @@ static u32 glk_plane_color_ctl_crtc(const struct intel_crtc_state *crtc_state)
 	return plane_color_ctl;
 }
 
-static u32 glk_plane_color_ctl(const struct intel_plane_state *plane_state)
+static u32 glk_plane_color_ctl_input_csc(const struct intel_plane_state *plane_state)
 {
 	struct intel_display *display = to_intel_display(plane_state);
 	const struct drm_framebuffer *fb = plane_state->hw.fb;
 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
-	u32 plane_color_ctl = 0;
-
-	plane_color_ctl |= PLANE_COLOR_PLANE_GAMMA_DISABLE;
-	plane_color_ctl |= glk_plane_color_ctl_alpha(plane_state);
+	u32 ctl = 0;
 
 	if (fb->format->is_yuv && !icl_is_hdr_plane(display, plane->id)) {
 		switch (plane_state->hw.color_encoding) {
 		case DRM_COLOR_YCBCR_BT709:
-			plane_color_ctl |= PLANE_COLOR_CSC_MODE_YUV709_TO_RGB709;
+			ctl |= PLANE_COLOR_CSC_MODE_YUV709_TO_RGB709;
 			break;
 		case DRM_COLOR_YCBCR_BT2020:
-			plane_color_ctl |=
-				PLANE_COLOR_CSC_MODE_YUV2020_TO_RGB2020;
+			ctl |= PLANE_COLOR_CSC_MODE_YUV2020_TO_RGB2020;
 			break;
 		default:
-			plane_color_ctl |=
-				PLANE_COLOR_CSC_MODE_YUV601_TO_RGB601;
+			ctl |= PLANE_COLOR_CSC_MODE_YUV601_TO_RGB601;
 		}
 		if (plane_state->hw.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
-			plane_color_ctl |= PLANE_COLOR_YUV_RANGE_CORRECTION_DISABLE;
+			ctl |= PLANE_COLOR_YUV_RANGE_CORRECTION_DISABLE;
 	} else if (fb->format->is_yuv) {
-		plane_color_ctl |= PLANE_COLOR_INPUT_CSC_ENABLE;
+		ctl |= PLANE_COLOR_INPUT_CSC_ENABLE;
 		if (plane_state->hw.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
-			plane_color_ctl |= PLANE_COLOR_YUV_RANGE_CORRECTION_DISABLE;
+			ctl |= PLANE_COLOR_YUV_RANGE_CORRECTION_DISABLE;
 	}
 
+	return ctl;
+}
+
+static u32 glk_plane_color_ctl(const struct intel_plane_state *plane_state)
+{
+	u32 plane_color_ctl = 0;
+
+	plane_color_ctl |= PLANE_COLOR_PLANE_GAMMA_DISABLE;
+	plane_color_ctl |= glk_plane_color_ctl_alpha(plane_state);
+	plane_color_ctl |= glk_plane_color_ctl_input_csc(plane_state);
+
 	if (plane_state->force_black)
 		plane_color_ctl |= PLANE_COLOR_PLANE_CSC_ENABLE;
 
-- 
2.50.1