diff mbox series

[v2,8/8] drm/meson: Output in YUV444 if sink supports it

Message ID 1549022873-40549-9-git-send-email-narmstrong@baylibre.com (mailing list archive)
State Not Applicable
Delegated to: Neil Armstrong
Headers show
Series drm/meson: Add support for HDMI2.0 4k60 | expand

Commit Message

Neil Armstrong Feb. 1, 2019, 12:07 p.m. UTC 
With the YUV420 handling, we can 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 to the HDMI Sink if it's supported without
necessarily involving the HDMI Controller CSC.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
 drivers/gpu/drm/meson/meson_dw_hdmi.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c
index 540971a..69f9b2a 100644
--- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
@@ -664,7 +664,10 @@  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;