git.openwrt.org Git - openwrt/staging/ldir.git/blob

   1 From a6872b25f18fe46ef9979f9d4a3635a9c3966afd Mon Sep 17 00:00:00 2001
   2 From: eng33 <eng33@waveshare.com>
   3 Date: Mon, 11 Dec 2023 15:06:45 +0800
   4 Subject: [PATCH] drivers/gpu/drm/panel:fix waveshare panel software
   5  restart/shutdown display is abnormal Fixed the screen stays white when the
   6  user restarts or shuts down
   7
   8 Signed-off-by: eng33 <eng33@waveshare.com>
   9 ---
  10  drivers/gpu/drm/panel/panel-waveshare-dsi.c | 10 ++++++++++
  11  1 file changed, 10 insertions(+)
  12
  13 --- a/drivers/gpu/drm/panel/panel-waveshare-dsi.c
  14 +++ b/drivers/gpu/drm/panel/panel-waveshare-dsi.c
  15 @@ -362,9 +362,18 @@ static void ws_panel_remove(struct i2c_c
  16  {
  17         struct ws_panel *ts = i2c_get_clientdata(i2c);
  18
  19 +       ws_panel_disable(&ts->base);
  20 +
  21         drm_panel_remove(&ts->base);
  22  }
  23
  24 +static void ws_panel_shutdown(struct i2c_client *i2c)
  25 +{
  26 +       struct ws_panel *ts = i2c_get_clientdata(i2c);
  27 +
  28 +       ws_panel_disable(&ts->base);
  29 +}
  30 +
  31  static const struct of_device_id ws_panel_of_ids[] = {
  32         {
  33                 .compatible = "waveshare,2.8inch-panel",
  34 @@ -403,6 +412,7 @@ static struct i2c_driver ws_panel_driver
  35         },
  36         .probe = ws_panel_probe,
  37         .remove = ws_panel_remove,
  38 +       .shutdown = ws_panel_shutdown,
  39  };
  40  module_i2c_driver(ws_panel_driver);
  41