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42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
From accb4b40a97c432b8a83f6fedf12b015aebb711d Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Mon, 24 Apr 2023 18:32:45 +0100
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Subject: [PATCH 0038/1002] drm/vc4: Limit max_bpc to 8 on Pi0-3
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Pi 0-3 have no deep colour support and only 24bpp output,
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so max_bpc should remain as 8.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_hdmi.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
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index 97e40e3f7ce5..b2c1e637d27a 100644
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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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@@ -756,7 +756,6 @@ static int vc4_hdmi_connector_init(struct drm_device *dev,
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drm_connector_attach_colorspace_property(connector);
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drm_connector_attach_tv_margin_properties(connector);
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- drm_connector_attach_max_bpc_property(connector, 8, 12);
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connector->polled = (DRM_CONNECTOR_POLL_CONNECT |
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DRM_CONNECTOR_POLL_DISCONNECT);
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@@ -765,8 +764,12 @@ static int vc4_hdmi_connector_init(struct drm_device *dev,
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connector->doublescan_allowed = 0;
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connector->stereo_allowed = 1;
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- if (vc4_hdmi->variant->supports_hdr)
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+ if (vc4_hdmi->variant->supports_hdr) {
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+ drm_connector_attach_max_bpc_property(connector, 8, 12);
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drm_connector_attach_hdr_output_metadata_property(connector);
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+ } else {
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+ drm_connector_attach_max_bpc_property(connector, 8, 8);
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+ }
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vc4_hdmi_attach_broadcast_rgb_property(dev, vc4_hdmi);
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--
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2.44.0
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