target/linux/bcm27xx/patches-4.19/950-0537-drm-vc4-firmware-kms-Remove-incorrect-overscan-suppo.patch

   1 From 3cd15f787b391db5224a27715fe9dc6fc8559bee Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Fri, 3 May 2019 13:58:03 +0100
   4 Subject: [PATCH] drm: vc4-firmware-kms: Remove incorrect overscan
   5  support.
   6
   7 The overscan support was required for the old mailbox API
   8 in order to match up the cursor and frame buffer planes.
   9 With the newer API directly talking to dispmanx there is no
  10 difference, therefore FKMS does not need to make any
  11 adjustments.
  12
  13 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  14 ---
  15  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 15 ---------------
  16  1 file changed, 15 deletions(-)
  17
  18 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  19 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  20 @@ -232,7 +232,6 @@ struct vc4_crtc {
  21         void __iomem *regs;
  22
  23         struct drm_pending_vblank_event *event;
  24 -       u32 overscan[4];
  25         bool vblank_enabled;
  26         u32 display_number;
  27         u32 display_type;
  28 @@ -468,11 +467,6 @@ static void vc4_plane_atomic_update(stru
  29                 break;
  30         }
  31
  32 -       if (vc4_crtc) {
  33 -               mb->plane.dst_x += vc4_crtc->overscan[0];
  34 -               mb->plane.dst_y += vc4_crtc->overscan[1];
  35 -       }
  36 -
  37         DRM_DEBUG_ATOMIC("[PLANE:%d:%s] plane update %dx%d@%d +dst(%d,%d, %d,%d) +src(%d,%d, %d,%d) 0x%08x/%08x/%08x/%d, alpha %u zpos %u\n",
  38                          plane->base.id, plane->name,
  39                          mb->plane.width,
  40 @@ -1228,15 +1222,6 @@ static int vc4_fkms_create_screen(struct
  41                 goto err_destroy_encoder;
  42         }
  43
  44 -       ret = rpi_firmware_property(vc4->firmware,
  45 -                                   RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN,
  46 -                                   &vc4_crtc->overscan,
  47 -                                   sizeof(vc4_crtc->overscan));
  48 -       if (ret) {
  49 -               DRM_ERROR("Failed to get overscan state: 0x%08x\n", vc4_crtc->overscan[0]);
  50 -               memset(&vc4_crtc->overscan, 0, sizeof(vc4_crtc->overscan));
  51 -       }
  52 -
  53         *ret_crtc = vc4_crtc;
  54
  55         return 0;