target/linux/brcm2708/patches-4.19/950-0111-vc4_fkms-Apply-firmware-overscan-offset-to-hardware-.patch

   1 From 5ef3d566615961b75f85868b028193bb54727140 Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Tue, 18 Apr 2017 21:43:46 +0100
   4 Subject: [PATCH] vc4_fkms: Apply firmware overscan offset to hardware
   5  cursor
   6
   7 ---
   8  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 17 +++++++++++++++++
   9  1 file changed, 17 insertions(+)
  10
  11 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  12 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  13 @@ -42,6 +42,7 @@ struct vc4_crtc {
  14         void __iomem *regs;
  15
  16         struct drm_pending_vblank_event *event;
  17 +       u32 overscan[4];
  18  };
  19
  20  static inline struct vc4_crtc *to_vc4_crtc(struct drm_crtc *crtc)
  21 @@ -191,6 +192,7 @@ static void vc4_cursor_plane_atomic_upda
  22                                            struct drm_plane_state *old_state)
  23  {
  24         struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
  25 +       struct vc4_crtc *vc4_crtc = to_vc4_crtc(plane->crtc);
  26         struct drm_plane_state *state = plane->state;
  27         struct drm_framebuffer *fb = state->fb;
  28         struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
  29 @@ -216,6 +218,12 @@ static void vc4_cursor_plane_atomic_upda
  30                          bo->paddr + fb->offsets[0],
  31                          fb->pitches[0]);
  32
  33 +       /* add on the top/left offsets when overscan is active */
  34 +       if (vc4_crtc) {
  35 +               packet_state[1] += vc4_crtc->overscan[0];
  36 +               packet_state[2] += vc4_crtc->overscan[1];
  37 +       }
  38 +
  39         ret = rpi_firmware_property(vc4->firmware,
  40                                     RPI_FIRMWARE_SET_CURSOR_STATE,
  41                                     &packet_state,
  42 @@ -695,6 +703,15 @@ static int vc4_fkms_bind(struct device *
  43         if (ret)
  44                 goto err_destroy_connector;
  45
  46 +       ret = rpi_firmware_property(vc4->firmware,
  47 +                                   RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN,
  48 +                                   &vc4_crtc->overscan,
  49 +                                   sizeof(vc4_crtc->overscan));
  50 +       if (ret) {
  51 +               DRM_ERROR("Failed to get overscan state: 0x%08x\n", vc4_crtc->overscan[0]);
  52 +               memset(&vc4_crtc->overscan, 0, sizeof(vc4_crtc->overscan));
  53 +       }
  54 +
  55         platform_set_drvdata(pdev, vc4_crtc);
  56
  57         return 0;