target/linux/bcm27xx/patches-5.15/950-0911-drm-vc4_hdmi-Force-a-modeset-when-Broadcast-RGB-sett.patch

   1 From 93d9ca68c731839126930c6e5a8254c8e1885641 Mon Sep 17 00:00:00 2001
   2 From: Dom Cobley <popcornmix@gmail.com>
   3 Date: Thu, 5 May 2022 18:50:04 +0100
   4 Subject: [PATCH] drm/vc4_hdmi: Force a modeset when Broadcast RGB
   5  setting changes
   6
   7 Without this the change is not visible until the next modeset
   8
   9 Signed-off-by: Dom Cobley <popcornmix@gmail.com>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_hdmi.c | 3 +++
  12  1 file changed, 3 insertions(+)
  13
  14 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
  15 +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
  16 @@ -334,14 +334,17 @@ static int vc4_hdmi_connector_atomic_che
  17  {
  18         struct drm_connector_state *old_state =
  19                 drm_atomic_get_old_connector_state(state, connector);
  20 +       struct vc4_hdmi_connector_state *old_vc4_state = conn_state_to_vc4_hdmi_conn_state(old_state);
  21         struct drm_connector_state *new_state =
  22                 drm_atomic_get_new_connector_state(state, connector);
  23 +       struct vc4_hdmi_connector_state *new_vc4_state = conn_state_to_vc4_hdmi_conn_state(new_state);
  24         struct drm_crtc *crtc = new_state->crtc;
  25
  26         if (!crtc)
  27                 return 0;
  28
  29         if (old_state->colorspace != new_state->colorspace ||
  30 +           old_vc4_state->broadcast_rgb != new_vc4_state->broadcast_rgb ||
  31             !drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
  32                 struct drm_crtc_state *crtc_state;
  33