From efd1df5cd92e4436f863730f666117494613693b Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Thu, 6 Dec 2018 15:24:39 +0100 Subject: [PATCH] drm/vc4: Attach margin props to the HDMI connector Commit db999538fdb0679629d90652f8a1437df1e85a7d upstream. Now that the plane code takes the margins setup into account, we can safely attach margin props to the HDMI connector. We also take care of filling AVI infoframes correctly to expose the top/botton/left/right bar. Note that those margin props match pretty well the overscan_{left,right,top,bottom} properties defined in config.txt and parsed by the VC4 firmware. Signed-off-by: Boris Brezillon Reviewed-by: Eric Anholt Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20181206142439.10441-6-boris.brezillon@bootlin.com --- drivers/gpu/drm/vc4/vc4_hdmi.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -310,6 +310,7 @@ static struct drm_connector *vc4_hdmi_co { struct drm_connector *connector; struct vc4_hdmi_connector *hdmi_connector; + int ret; hdmi_connector = devm_kzalloc(dev->dev, sizeof(*hdmi_connector), GFP_KERNEL); @@ -323,6 +324,13 @@ static struct drm_connector *vc4_hdmi_co DRM_MODE_CONNECTOR_HDMIA); drm_connector_helper_add(connector, &vc4_hdmi_connector_helper_funcs); + /* Create and attach TV margin props to this connector. */ + ret = drm_mode_create_tv_margin_properties(dev); + if (ret) + return ERR_PTR(ret); + + drm_connector_attach_tv_margin_properties(connector); + connector->polled = (DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT); @@ -408,6 +416,9 @@ static void vc4_hdmi_write_infoframe(str static void vc4_hdmi_set_avi_infoframe(struct drm_encoder *encoder) { struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder); + struct vc4_dev *vc4 = encoder->dev->dev_private; + struct vc4_hdmi *hdmi = vc4->hdmi; + struct drm_connector_state *cstate = hdmi->connector->state; struct drm_crtc *crtc = encoder->crtc; const struct drm_display_mode *mode = &crtc->state->adjusted_mode; union hdmi_infoframe frame; @@ -426,6 +437,11 @@ static void vc4_hdmi_set_avi_infoframe(s vc4_encoder->rgb_range_selectable, false); + frame.avi.right_bar = cstate->tv.margins.right; + frame.avi.left_bar = cstate->tv.margins.left; + frame.avi.top_bar = cstate->tv.margins.top; + frame.avi.bottom_bar = cstate->tv.margins.bottom; + vc4_hdmi_write_infoframe(encoder, &frame); }