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