From 393534f291d821779203cb74896abc26e07160d6 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 10 Nov 2021 16:58:42 +0100 Subject: [PATCH] drm/nouveau: set RGB quantization range to FULL The nouveau driver outputs full range RGB, but the AVI InfoFrame just says 'Default' instead of 'Full'. Call drm_hdmi_avi_infoframe_quant_range to fill in the quantization field of the AVI InfoFrame correctly. Now displays that advertise RGB Selectable Quantization Range in their EDID will understand that full range is transmitted by the HDMI output. This is consistent to how the Nvidia's driver behaves. Signed-off-by: Hans Verkuil Reviewed-by: Ben Skeggs Signed-off-by: Karol Herbst Link: https://patchwork.freedesktop.org/patch/msgid/e9a4a58a-0500-50f6-58cc-938a253cedeb@xs4all.nl --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 7b8992ea6fd6..23fa9ecc2296 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -852,6 +852,9 @@ nv50_hdmi_enable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc, ret = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame.avi, &nv_connector->base, mode); if (!ret) { + drm_hdmi_avi_infoframe_quant_range(&avi_frame.avi, + &nv_connector->base, mode, + HDMI_QUANTIZATION_RANGE_FULL); /* We have an AVI InfoFrame, populate it to the display */ args.pwr.avi_infoframe_length = hdmi_infoframe_pack(&avi_frame, args.infoframes, 17); -- 2.11.0