From: Hans Verkuil Date: Wed, 10 Nov 2021 15:58:42 +0000 (+0100) Subject: drm/nouveau: set RGB quantization range to FULL X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=393534f291d821779203cb74896abc26e07160d6;p=linux.git 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 --- diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 7b8992ea6fd65..23fa9ecc22967 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);