8f9e91ad03
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
48 lines
1.6 KiB
Diff
48 lines
1.6 KiB
Diff
From a9a23d5c64f1042efd8e1c5ee99dcd466bd64c7d Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Fri, 17 May 2024 17:37:33 +0100
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Subject: [PATCH] drm/bridge: panel: Name an associated backlight device
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Pass the DRM connector name to any configured backlight
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device so that userspace can associate the two items.
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Ideally this should be in drm_panel, but it is bridge/panel
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that creates the drm_connector and therefore knows the name.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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drm/bridge: panel: Ensure backlight is reachable
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Ensure that the various options of modules vs builtin results
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in being able to call into the backlight code.
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https://github.com/raspberrypi/linux/issues/6198
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Fixes: 573f8fd0abf1 ("drm/bridge: panel: Name an associated backlight device")
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/bridge/panel.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/drivers/gpu/drm/bridge/panel.c
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+++ b/drivers/gpu/drm/bridge/panel.c
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@@ -16,6 +16,7 @@
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#include <drm/drm_panel.h>
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#include <drm/drm_print.h>
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#include <drm/drm_probe_helper.h>
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+#include <linux/backlight.h>
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struct panel_bridge {
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struct drm_bridge bridge;
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@@ -83,6 +84,11 @@ static int panel_bridge_attach(struct dr
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drm_connector_attach_encoder(&panel_bridge->connector,
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bridge->encoder);
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+#if IS_REACHABLE(CONFIG_BACKLIGHT_CLASS_DEVICE)
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+ backlight_set_display_name(panel_bridge->panel->backlight,
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+ panel_bridge->connector.name);
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+#endif
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+
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if (bridge->dev->registered) {
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if (connector->funcs->reset)
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connector->funcs->reset(connector);
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