intel_backlight_update
intel_encoder->update_pipe = intel_backlight_update;
encoder->update_pipe = intel_backlight_update;
void intel_backlight_update(struct intel_atomic_state *state,
intel_backlight_update(state, encoder, crtc_state, conn_state);
encoder->update_pipe = intel_backlight_update;
encoder->update_pipe = intel_backlight_update;