drm/amd/display: Add connector to the state if DSC debugfs is set

[why]
We want to trigger atomic check on connector, which DSC debugfs
properties have changed.

[how]
Add a helper function that iterates through all active connectors
and add them to the state if DSC debugfs parameters have changed.

Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 13ac3bf..8c13572 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -880,6 +880,45 @@ static int dm_dmub_hw_init(struct amdgpu_device *adev)
        return 0;
 }
 
+static void amdgpu_check_debugfs_connector_property_change(struct amdgpu_device *adev,
+                                                          struct drm_atomic_state *state)
+{
+       struct drm_connector *connector;
+       struct drm_crtc *crtc;
+       struct amdgpu_dm_connector *amdgpu_dm_connector;
+       struct drm_connector_state *conn_state;
+       struct dm_crtc_state *acrtc_state;
+       struct drm_crtc_state *crtc_state;
+       struct dc_stream_state *stream;
+       struct drm_device *dev = adev_to_drm(adev);
+
+       list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+
+               amdgpu_dm_connector = to_amdgpu_dm_connector(connector);
+               conn_state = connector->state;
+
+               if (!(conn_state && conn_state->crtc))
+                       continue;
+
+               crtc = conn_state->crtc;
+               acrtc_state = to_dm_crtc_state(crtc->state);
+
+               if (!(acrtc_state && acrtc_state->stream))
+                       continue;
+
+               stream = acrtc_state->stream;
+
+               if (amdgpu_dm_connector->dsc_settings.dsc_force_enable ||
+                   amdgpu_dm_connector->dsc_settings.dsc_num_slices_v ||
+                   amdgpu_dm_connector->dsc_settings.dsc_num_slices_h ||
+                   amdgpu_dm_connector->dsc_settings.dsc_bits_per_pixel) {
+                       conn_state = drm_atomic_get_connector_state(state, connector);
+                       crtc_state = drm_atomic_get_crtc_state(state, crtc);
+                       crtc_state->mode_changed = true;
+               }
+       }
+}
+
 static int amdgpu_dm_init(struct amdgpu_device *adev)
 {
        struct dc_init_data init_data;
@@ -8552,6 +8591,8 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
        int ret, i;
        bool lock_and_validation_needed = false;
 
+       amdgpu_check_debugfs_connector_property_change(adev, state);
+
        ret = drm_atomic_helper_check_modeset(dev, state);
        if (ret)
                goto fail;