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committed 0aa5eb3a442/* * Copyright (C) 2013, NVIDIA Corporation. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sub license, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */static DEFINE_MUTEX(panel_lock);static LIST_HEAD(panel_list);/** * DOC: drm panel * * The DRM panel helpers allow drivers to register panel objects with a * central registry and provide functions to retrieve those panels in display * drivers. * * For easy integration into drivers using the &drm_bridge infrastructure please * take look at drm_panel_bridge_add() and devm_drm_panel_bridge_add(). *//** * drm_panel_init - initialize a panel * @panel: DRM panel * * Sets up internal fields of the panel so that it can subsequently be added * to the registry. */void drm_panel_init(struct drm_panel *panel){ INIT_LIST_HEAD(&panel->list);}EXPORT_SYMBOL(drm_panel_init);/** * drm_panel_add - add a panel to the global registry * @panel: panel to add * * Add a panel to the global registry so that it can be looked up by display * drivers. *