target/linux/bcm27xx/patches-5.15/950-0594-drm-panel-simple-Populate-bpc-when-using-panel-dpi.patch

   1 From 61dcbd9d50cb21d1e56868e01f5ec3c11f5e3176 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Thu, 2 Dec 2021 18:10:55 +0000
   4 Subject: [PATCH] drm/panel-simple: Populate bpc when using panel-dpi
   5
   6 panel-dpi doesn't know the bit depth, so in the same way that
   7 DPI is guessed for the connector type, guess that it'll be 8bpc.
   8
   9 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  10 ---
  11  drivers/gpu/drm/panel/panel-simple.c | 2 ++
  12  1 file changed, 2 insertions(+)
  13
  14 --- a/drivers/gpu/drm/panel/panel-simple.c
  15 +++ b/drivers/gpu/drm/panel/panel-simple.c
  16 @@ -607,6 +607,8 @@ static int panel_dpi_probe(struct device
  17
  18         /* We do not know the connector for the DT node, so guess it */
  19         desc->connector_type = DRM_MODE_CONNECTOR_DPI;
  20 +       /* Likewise for the bit depth. */
  21 +       desc->bpc = 8;
  22
  23         panel->desc = desc;
  24