[PATCH v4 13/13] drm/amd/display: Refactor avi_info_frame colorimetry determination

[Harry Wentland]

From: Joshua Ashton <joshua at froggi.es>

Replace the messy two if-else chains here that were
on the same value with a switch on the enum.

Signed-off-by: Joshua Ashton <joshua at froggi.es>
Signed-off-by: Harry Wentland <harry.wentland at amd.com>
Cc: Pekka Paalanen <ppaalanen at gmail.com>
Cc: Sebastian Wick <sebastian.wick at redhat.com>
Cc: Vitaly.Prosyak at amd.com
Cc: Joshua Ashton <joshua at froggi.es>
Cc: Simon Ser <contact at emersion.fr>
Cc: Melissa Wen <mwen at igalia.com>
Cc: dri-devel at lists.freedesktop.org
Cc: amd-gfx at lists.freedesktop.org
Reviewed-by: Harry Wentland <harry.wentland at amd.com>
---
 .../gpu/drm/amd/display/dc/core/dc_resource.c | 28 +++++++++++--------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 7e1e5532f88f..ac3062abec51 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -3015,23 +3015,29 @@ static void set_avi_info_frame(
 	hdmi_info.bits.S0_S1 = scan_type;
 
 	/* C0, C1 : Colorimetry */
-	if (color_space == COLOR_SPACE_YCBCR709 ||
-			color_space == COLOR_SPACE_YCBCR709_LIMITED)
+	switch (color_space) {
+	case COLOR_SPACE_YCBCR709:
+	case COLOR_SPACE_YCBCR709_LIMITED:
 		hdmi_info.bits.C0_C1 = COLORIMETRY_ITU709;
-	else if (color_space == COLOR_SPACE_YCBCR601 ||
-			color_space == COLOR_SPACE_YCBCR601_LIMITED)
+		break;
+	case COLOR_SPACE_YCBCR601:
+	case COLOR_SPACE_YCBCR601_LIMITED:
 		hdmi_info.bits.C0_C1 = COLORIMETRY_ITU601;
-	else {
-		hdmi_info.bits.C0_C1 = COLORIMETRY_NO_DATA;
-	}
-	if (color_space == COLOR_SPACE_2020_RGB_FULLRANGE ||
-			color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE ||
-			color_space == COLOR_SPACE_2020_YCBCR) {
+		break;
+	case COLOR_SPACE_2020_RGB_FULLRANGE:
+	case COLOR_SPACE_2020_RGB_LIMITEDRANGE:
+	case COLOR_SPACE_2020_YCBCR:
 		hdmi_info.bits.EC0_EC2 = COLORIMETRYEX_BT2020RGBYCBCR;
 		hdmi_info.bits.C0_C1   = COLORIMETRY_EXTENDED;
-	} else if (color_space == COLOR_SPACE_ADOBERGB) {
+		break;
+	case COLOR_SPACE_ADOBERGB:
 		hdmi_info.bits.EC0_EC2 = COLORIMETRYEX_ADOBERGB;
 		hdmi_info.bits.C0_C1   = COLORIMETRY_EXTENDED;
+		break;
+	case COLOR_SPACE_SRGB:
+	default:
+		hdmi_info.bits.C0_C1 = COLORIMETRY_NO_DATA;
+		break;
 	}
 
 	if (pixel_encoding && color_space == COLOR_SPACE_2020_YCBCR &&
-- 
2.40.1