git.ipfire.org Git - thirdparty/openwrt.git/blob

   1 From 573f8fd0abf1d63ef719672a3c26e7abc0169620 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Fri, 17 May 2024 17:37:33 +0100
   4 Subject: [PATCH 1103/1135] drm/bridge: panel: Name an associated backlight
   5  device
   6
   7 Pass the DRM connector name to any configured backlight
   8 device so that userspace can associate the two items.
   9
  10 Ideally this should be in drm_panel, but it is bridge/panel
  11 that creates the drm_connector and therefore knows the name.
  12
  13 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  14 ---
  15  drivers/gpu/drm/bridge/panel.c | 4 ++++
  16  1 file changed, 4 insertions(+)
  17
  18 --- a/drivers/gpu/drm/bridge/panel.c
  19 +++ b/drivers/gpu/drm/bridge/panel.c
  20 @@ -14,6 +14,7 @@
  21  #include <drm/drm_panel.h>
  22  #include <drm/drm_print.h>
  23  #include <drm/drm_probe_helper.h>
  24 +#include <linux/backlight.h>
  25
  26  struct panel_bridge {
  27         struct drm_bridge bridge;
  28 @@ -86,6 +87,9 @@ static int panel_bridge_attach(struct dr
  29         drm_connector_attach_encoder(&panel_bridge->connector,
  30                                           bridge->encoder);
  31
  32 +       backlight_set_display_name(panel_bridge->panel->backlight,
  33 +                                  panel_bridge->connector.name);
  34 +
  35         if (bridge->dev->registered) {
  36                 if (connector->funcs->reset)
  37                         connector->funcs->reset(connector);