target/linux/bcm27xx/patches-5.4/950-0244-drm-vc4-Iterate-over-all-planes-in-vc4_crtc_-dis-en-.patch

   1 From 016e6e68a119d3f4cae3c148433e2d661c7835be Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Wed, 10 Apr 2019 17:42:37 +0100
   4 Subject: [PATCH] drm: vc4: Iterate over all planes in
   5  vc4_crtc_[dis|en]able
   6
   7 Fixes a FIXME where the overlay plane wouldn't be restored.
   8
   9 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 20 +++++++++++---------
  12  1 file changed, 11 insertions(+), 9 deletions(-)
  13
  14 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  15 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  16 @@ -600,6 +600,8 @@ static void vc4_crtc_mode_set_nofb(struc
  17
  18  static void vc4_crtc_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
  19  {
  20 +       struct drm_plane *plane;
  21 +
  22         drm_crtc_vblank_off(crtc);
  23
  24         /* Always turn the planes off on CRTC disable. In DRM, planes
  25 @@ -609,23 +611,23 @@ static void vc4_crtc_disable(struct drm_
  26          * give us a CRTC-level control for that.
  27          */
  28
  29 -       vc4_plane_atomic_disable(crtc->cursor, crtc->cursor->state);
  30 -       vc4_plane_atomic_disable(crtc->primary, crtc->primary->state);
  31 -
  32 -       /* FIXME: Disable overlay planes */
  33 +       drm_atomic_crtc_for_each_plane(plane, crtc)
  34 +               vc4_plane_atomic_disable(plane, plane->state);
  35  }
  36
  37  static void vc4_crtc_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
  38  {
  39 +       struct drm_plane *plane;
  40 +
  41         drm_crtc_vblank_on(crtc);
  42 +
  43         /* Unblank the planes (if they're supposed to be displayed). */
  44 +       drm_atomic_crtc_for_each_plane(plane, crtc)
  45 +               if (plane->state->fb)
  46 +                       vc4_plane_set_blank(plane, plane->state->visible);
  47 +}
  48
  49 -       if (crtc->primary->state->fb)
  50 -               vc4_plane_set_blank(crtc->primary, false);
  51 -       if (crtc->cursor->state->fb)
  52 -               vc4_plane_set_blank(crtc->cursor, crtc->cursor->state);
  53
  54 -       /* FIXME: Enable overlay planes */
  55  }
  56
  57  static int vc4_crtc_atomic_check(struct drm_crtc *crtc,