target/linux/bcm27xx/patches-5.15/950-0023-drm-vc4-Remove-conflicting-framebuffers-before-calli.patch

   1 From c8f54918eece907f904d160815603bfcee0cfa1e Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Wed, 15 Dec 2021 10:51:16 +0100
   4 Subject: [PATCH] drm/vc4: Remove conflicting framebuffers before
   5  callind bind_all
   6
   7 The bind hooks will modify their controller registers, so simplefb is
   8 going to be unusable anyway. Let's avoid any transient state where it
   9 could still be in the system but no longer functionnal.
  10
  11 Acked-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
  12 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
  13 Link: https://patchwork.freedesktop.org/patch/msgid/20211215095117.176435-4-maxime@cerno.tech
  14 ---
  15  drivers/gpu/drm/vc4/vc4_drv.c | 8 ++++----
  16  1 file changed, 4 insertions(+), 4 deletions(-)
  17
  18 --- a/drivers/gpu/drm/vc4/vc4_drv.c
  19 +++ b/drivers/gpu/drm/vc4/vc4_drv.c
  20 @@ -272,15 +272,15 @@ static int vc4_drm_bind(struct device *d
  21         if (ret)
  22                 return ret;
  23
  24 -       ret = component_bind_all(dev, drm);
  25 +       ret = drm_aperture_remove_framebuffers(false, &vc4_drm_driver);
  26         if (ret)
  27                 return ret;
  28
  29 -       ret = vc4_plane_create_additional_planes(drm);
  30 +       ret = component_bind_all(dev, drm);
  31         if (ret)
  32 -               goto unbind_all;
  33 +               return ret;
  34
  35 -       ret = drm_aperture_remove_framebuffers(false, &vc4_drm_driver);
  36 +       ret = vc4_plane_create_additional_planes(drm);
  37         if (ret)
  38                 goto unbind_all;
  39