LXR linux/drivers/gpu/drm/nouveau/nouveau

   1/*
   2 * Copyright 2015 Martin Peres
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 * Authors: Martin Peres <martin.peres@free.fr>
  23 */
  24
  25#ifndef __NOUVEAU_LED_H__
  26#define __NOUVEAU_LED_H__
  27
  28#include "nouveau_drv.h"
  29
  30struct led_classdev;
  31
  32struct nouveau_led {
  33        struct drm_device *dev;
  34
  35        struct led_classdev led;
  36};
  37
  38static inline struct nouveau_led *
  39nouveau_led(struct drm_device *dev)
  40{
  41        return nouveau_drm(dev)->led;
  42}
  43
  44/* nouveau_led.c */
  45#if IS_REACHABLE(CONFIG_LEDS_CLASS)
  46int  nouveau_led_init(struct drm_device *dev);
  47void nouveau_led_suspend(struct drm_device *dev);
  48void nouveau_led_resume(struct drm_device *dev);
  49void nouveau_led_fini(struct drm_device *dev);
  50#else
  51static inline int  nouveau_led_init(struct drm_device *dev) { return 0; };
  52static inline void nouveau_led_suspend(struct drm_device *dev) { };
  53static inline void nouveau_led_resume(struct drm_device *dev) { };
  54static inline void nouveau_led_fini(struct drm_device *dev) { };
  55#endif
  56
  57#endif
  58