[thirdparty/kernel/stable.git] / drivers / gpu / drm / drm_crtc_helper_internal.h

/*
 * Copyright © 2016 Intel Corporation
 *
 * 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, sublicense,
 * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
 */

/*
 * This header file contains mode setting related functions and definitions
 * which are only used within the drm kms helper module as internal
 * implementation details and are not exported to drivers.
 */

#include <drm/drm_dp_helper.h>

/* drm_fb_helper.c */
#ifdef CONFIG_DRM_FBDEV_EMULATION
int drm_fb_helper_modinit(void);
#else
static inline int drm_fb_helper_modinit(void)
{
	return 0;
}
#endif

/* drm_dp_aux_dev.c */
#ifdef CONFIG_DRM_DP_AUX_CHARDEV
int drm_dp_aux_dev_init(void);
void drm_dp_aux_dev_exit(void);
int drm_dp_aux_register_devnode(struct drm_dp_aux *aux);
void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux);
#else
static inline int drm_dp_aux_dev_init(void)
{
	return 0;
}

static inline void drm_dp_aux_dev_exit(void)
{
}

static inline int drm_dp_aux_register_devnode(struct drm_dp_aux *aux)
{
	return 0;
}

static inline void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux)
{
}
#endif
Commit	Line	Data
e94cb37b	1	/*
e15c8f4b	2	* Copyright © 2016 Intel Corporation
e94cb37b RA	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	*
e15c8f4b DV	11	* The above copyright notice and this permission notice shall be included in
e15c8f4b DV	12	* all copies or substantial portions of the Software.
e94cb37b RA	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
e15c8f4b DV	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.
e94cb37b RA	21	*/
e94cb37b RA	22
e15c8f4b DV	23	/*
	24	* This header file contains mode setting related functions and definitions
	25	* which are only used within the drm kms helper module as internal
	26	* implementation details and are not exported to drivers.
	27	*/
e94cb37b RA	28
	29	#include <drm/drm_dp_helper.h>
	30
e15c8f4b	31	/* drm_fb_helper.c */
699fbeea	32	#ifdef CONFIG_DRM_FBDEV_EMULATION
e15c8f4b	33	int drm_fb_helper_modinit(void);
699fbeea VS	34	#else
	35	static inline int drm_fb_helper_modinit(void)
	36	{
	37	return 0;
	38	}
	39	#endif
e94cb37b	40
e15c8f4b DV	41	/* drm_dp_aux_dev.c */
e15c8f4b DV	42	#ifdef CONFIG_DRM_DP_AUX_CHARDEV
e94cb37b RA	43	int drm_dp_aux_dev_init(void);
	44	void drm_dp_aux_dev_exit(void);
	45	int drm_dp_aux_register_devnode(struct drm_dp_aux *aux);
	46	void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux);
e94cb37b	47	#else
e94cb37b RA	48	static inline int drm_dp_aux_dev_init(void)
	49	{
	50	return 0;
	51	}
	52
	53	static inline void drm_dp_aux_dev_exit(void)
	54	{
	55	}
	56
	57	static inline int drm_dp_aux_register_devnode(struct drm_dp_aux *aux)
	58	{
	59	return 0;
	60	}
	61
	62	static inline void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux)
	63	{
	64	}
e94cb37b	65	#endif