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rk322x: prefer 8-bit hdmi output over YCbCr

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This commit is contained in:
Paolo Sabatino 2021-09-17 23:12:54 +00:00 committed by Paolo
parent 31d238930b
commit b39c367a35
2 changed files with 76 additions and 0 deletions
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38
patch/kernel/archive/rk322x-5.10/5002-prefer-8-bit-RGB-over-YCbCr.patch Normal file
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@ -0,0 +1,38 @@
From 3f6f9e704daf85eb5f45aba07997c85d927c880f Mon Sep 17 00:00:00 2001
From: Paolo Sabatino <paolo.sabatino@gmail.com>
Date: Fri, 17 Sep 2021 20:10:22 +0000
Subject: [PATCH] prefer 8-bit RGB over YCbCr
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 84cc52858..5db7024de 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2648,6 +2648,10 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
output_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
}
+ /* Prefer 8-bit RGB over YCbCr formats */
+ if (is_tmds_allowed(info, mode, MEDIA_BUS_FMT_RGB888_1X24))
+ output_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+
if ((info->color_formats & DRM_COLOR_FORMAT_YCRCB422) &&
is_tmds_allowed(info, mode, MEDIA_BUS_FMT_UYVY8_1X16))
output_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
@@ -2656,10 +2660,6 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
is_tmds_allowed(info, mode, MEDIA_BUS_FMT_YUV8_1X24))
output_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
- /* Default 8bit RGB fallback */
- if (is_tmds_allowed(info, mode, MEDIA_BUS_FMT_RGB888_1X24))
- output_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
-
*num_output_fmts = i;
return output_fmts;
--
2.30.2

38
patch/kernel/archive/rk322x-5.14/5002-prefer-8-bit-RGB-over-YCbCr.patch Normal file
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@ -0,0 +1,38 @@
From 3f6f9e704daf85eb5f45aba07997c85d927c880f Mon Sep 17 00:00:00 2001
From: Paolo Sabatino <paolo.sabatino@gmail.com>
Date: Fri, 17 Sep 2021 20:10:22 +0000
Subject: [PATCH] prefer 8-bit RGB over YCbCr
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 84cc52858..5db7024de 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2648,6 +2648,10 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
output_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
}
+ /* Prefer 8-bit RGB over YCbCr formats */
+ if (is_tmds_allowed(info, mode, MEDIA_BUS_FMT_RGB888_1X24))
+ output_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+
if ((info->color_formats & DRM_COLOR_FORMAT_YCRCB422) &&
is_tmds_allowed(info, mode, MEDIA_BUS_FMT_UYVY8_1X16))
output_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
@@ -2656,10 +2660,6 @@ static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
is_tmds_allowed(info, mode, MEDIA_BUS_FMT_YUV8_1X24))
output_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
- /* Default 8bit RGB fallback */
- if (is_tmds_allowed(info, mode, MEDIA_BUS_FMT_RGB888_1X24))
- output_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
-
*num_output_fmts = i;
return output_fmts;
--
2.30.2