diff options
Diffstat (limited to 'testing/linux-amlogic/0021-drm-meson-Output-in-YUV444-if-sink-supports-it.patch')
| -rw-r--r-- | testing/linux-amlogic/0021-drm-meson-Output-in-YUV444-if-sink-supports-it.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/testing/linux-amlogic/0021-drm-meson-Output-in-YUV444-if-sink-supports-it.patch b/testing/linux-amlogic/0021-drm-meson-Output-in-YUV444-if-sink-supports-it.patch new file mode 100644 index 0000000000..50aa112db2 --- /dev/null +++ b/testing/linux-amlogic/0021-drm-meson-Output-in-YUV444-if-sink-supports-it.patch @@ -0,0 +1,31 @@ +From c9cf1e80259276c3da76bc03ab0aaa9dfac481ae Mon Sep 17 00:00:00 2001 +From: Neil Armstrong <narmstrong@baylibre.com> +Date: Sun, 18 Nov 2018 14:06:11 +0100 +Subject: [PATCH] drm/meson: Output in YUV444 if sink supports it + +With the YUV420 handling, we can no dynamically setup the HDMI output +pixel format depending on the mode and connector info. +So now, we can output in YUV444, which is the native video pipeline +format, directly the the HDMI Sink it it's supported, without +involving the HDMI Controller CSC. + +--- + drivers/gpu/drm/meson/meson_dw_hdmi.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c +index 0b9ecbf..6df124c 100644 +--- a/drivers/gpu/drm/meson/meson_dw_hdmi.c ++++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c +@@ -670,7 +670,10 @@ static int meson_venc_hdmi_encoder_atomic_check(struct drm_encoder *encoder, + dw_hdmi->output_bus_format = MEDIA_BUS_FMT_UYYVYY8_0_5X24; + } else { + dw_hdmi->input_bus_format = MEDIA_BUS_FMT_YUV8_1X24; +- dw_hdmi->output_bus_format = MEDIA_BUS_FMT_RGB888_1X24; ++ if (info->color_formats & DRM_COLOR_FORMAT_YCRCB444) ++ dw_hdmi->output_bus_format = MEDIA_BUS_FMT_YUV8_1X24; ++ else ++ dw_hdmi->output_bus_format = MEDIA_BUS_FMT_RGB888_1X24; + } + + return 0; |