target/linux/bcm27xx/patches-6.1/950-1242-drm-vc4-Fix-atomic_async_check-to-call-the-right-mod.patch

   1 From bfe927647253ab3a86be16320baa1579518c6786 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Wed, 17 Jan 2024 17:00:35 +0000
   4 Subject: [PATCH] drm/vc4: Fix atomic_async_check to call the right mode_set
   5  function
   6
   7 vc4_plane_atomic_async_check was always calling vc4_plane_mode_set
   8 to validate and generate the dlist for the check. If async_check
   9 decided it had to fall back to a sync commit, then this GEN4/5
  10 dlist could get used on GEN6.
  11
  12 Call either vc4_plane_mode_set or vc6_plane_mode_set as appropriate.
  13
  14 Fixes: 1ab1fbbb7e76 ("drm/vc4: hvs: Support BCM2712 HVS")
  15 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  16 ---
  17  drivers/gpu/drm/vc4/vc4_plane.c | 6 +++++-
  18  1 file changed, 5 insertions(+), 1 deletion(-)
  19
  20 --- a/drivers/gpu/drm/vc4/vc4_plane.c
  21 +++ b/drivers/gpu/drm/vc4/vc4_plane.c
  22 @@ -2194,11 +2194,15 @@ static int vc4_plane_atomic_async_check(
  23  {
  24         struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
  25                                                                                  plane);
  26 +       struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
  27         struct vc4_plane_state *old_vc4_state, *new_vc4_state;
  28         int ret;
  29         u32 i;
  30
  31 -       ret = vc4_plane_mode_set(plane, new_plane_state);
  32 +       if (vc4->gen >= VC4_GEN_6)
  33 +               ret = vc6_plane_mode_set(plane, new_plane_state);
  34 +       else
  35 +               ret = vc4_plane_mode_set(plane, new_plane_state);
  36         if (ret)
  37                 return ret;
  38