target/linux/brcm2708/patches-4.19/950-0603-drm-vc4-Select-display-to-blank-during-initialisatio.patch

   1 From 2ec4f853916551a57f574b988162b589e3331359 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Fri, 5 Apr 2019 17:23:15 +0100
   4 Subject: [PATCH 603/703] drm: vc4: Select display to blank during
   5  initialisation
   6
   7 Otherwise the rainbow splash screen remained in the display list
   8
   9 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 18 ++++++++++++++----
  12  1 file changed, 14 insertions(+), 4 deletions(-)
  13
  14 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  15 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  16 @@ -87,6 +87,13 @@ struct fb_alloc_tags {
  17         u32 layer;
  18  };
  19
  20 +struct mailbox_blank_display {
  21 +       struct rpi_firmware_property_tag_header tag1;
  22 +       u32 display;
  23 +       struct rpi_firmware_property_tag_header tag2;
  24 +       u32 blank;
  25 +};
  26 +
  27  static const struct vc_image_format {
  28         u32 drm;        /* DRM_FORMAT_* */
  29         u32 vc_image;   /* VC_IMAGE_* */
  30 @@ -854,7 +861,12 @@ static int vc4_fkms_create_screen(struct
  31         struct drm_crtc *crtc;
  32         struct drm_plane *primary_plane, *overlay_plane, *cursor_plane;
  33         struct drm_plane *destroy_plane, *temp;
  34 -       u32 blank = 1;
  35 +       struct mailbox_blank_display blank = {
  36 +               .tag1 = {RPI_FIRMWARE_FRAMEBUFFER_SET_DISPLAY_NUM, 4, 0, },
  37 +               .display = display_idx,
  38 +               .tag2 = { RPI_FIRMWARE_FRAMEBUFFER_BLANK, 4, 0, },
  39 +               .blank = 1,
  40 +       };
  41         int ret;
  42
  43         vc4_crtc = devm_kzalloc(dev, sizeof(*vc4_crtc), GFP_KERNEL);
  44 @@ -865,9 +877,7 @@ static int vc4_fkms_create_screen(struct
  45         vc4_crtc->display_number = display_ref;
  46
  47         /* Blank the firmware provided framebuffer */
  48 -       rpi_firmware_property(vc4->firmware,
  49 -                             RPI_FIRMWARE_FRAMEBUFFER_BLANK,
  50 -                             &blank, sizeof(blank));
  51 +       rpi_firmware_property_list(vc4->firmware, &blank, sizeof(blank));
  52
  53         primary_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_PRIMARY,
  54                                             display_ref,