From 2b420ad1ebade69b262cb1cf36668134d7bd785c Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Sun, 18 Nov 2018 14:06:11 +0100 Subject: [PATCH 50/53] 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 83360f37d9ce..1b7092ab1be8 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; -- 2.17.1