1/*
 2 * Copyright © 2015 Intel Corporation
 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 (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 *    Rafael Antognolli <rafael.antognolli@intel.com>
25 *
26 */
27
28#include <drm/drmP.h>
29#include <drm/drm_fb_helper.h>
30#include <drm/drm_dp_aux_dev.h>
 
 
31
32MODULE_AUTHOR("David Airlie, Jesse Barnes");
33MODULE_DESCRIPTION("DRM KMS helper");
34MODULE_LICENSE("GPL and additional rights");
35
36static int __init drm_kms_helper_init(void)
 
 
 
 
 
 
 
 
 
 
37{
38	int ret;
 
 
 
 
 
 
 
 
 
 
 
39
40	/* Call init functions from specific kms helpers here */
41	ret = drm_fb_helper_modinit();
42	if (ret < 0)
43		goto out;
44
45	ret = drm_dp_aux_dev_init();
46	if (ret < 0)
47		goto out;
 
 
 
 
 
 
48
49out:
50	return ret;
51}
52
53static void __exit drm_kms_helper_exit(void)
54{
55	/* Call exit functions from specific kms helpers here */
56	drm_dp_aux_dev_exit();
57}
58
59module_init(drm_kms_helper_init);
60module_exit(drm_kms_helper_exit);

 1/*
 2 * Copyright © 2015 Intel Corporation
 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 (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 *    Rafael Antognolli <rafael.antognolli@intel.com>
25 *
26 */
27
28#include <linux/module.h>
29
30#include <drm/drm_print.h>
31
32#include "drm_crtc_helper_internal.h"
33
34MODULE_AUTHOR("David Airlie, Jesse Barnes");
35MODULE_DESCRIPTION("DRM KMS helper");
36MODULE_LICENSE("GPL and additional rights");
37
38#if IS_ENABLED(CONFIG_DRM_LOAD_EDID_FIRMWARE)
39
40/* Backward compatibility for drm_kms_helper.edid_firmware */
41static int edid_firmware_set(const char *val, const struct kernel_param *kp)
42{
43	DRM_NOTE("drm_kms_helper.edid_firmware is deprecated, please use drm.edid_firmware instead.\n");
44
45	return __drm_set_edid_firmware_path(val);
46}
47
48static int edid_firmware_get(char *buffer, const struct kernel_param *kp)
49{
50	return __drm_get_edid_firmware_path(buffer, PAGE_SIZE);
51}
52
53static const struct kernel_param_ops edid_firmware_ops = {
54	.set = edid_firmware_set,
55	.get = edid_firmware_get,
56};
57
58module_param_cb(edid_firmware, &edid_firmware_ops, NULL, 0644);
59__MODULE_PARM_TYPE(edid_firmware, "charp");
60MODULE_PARM_DESC(edid_firmware,
61		 "DEPRECATED. Use drm.edid_firmware module parameter instead.");
62
63#endif
64
65static int __init drm_kms_helper_init(void)
66{
67	/*
68	 * The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
69	 * but the module doesn't depend on any fb console symbols.  At least
70	 * attempt to load fbcon to avoid leaving the system without a usable
71	 * console.
72	 */
73	if (IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) &&
74	    IS_MODULE(CONFIG_FRAMEBUFFER_CONSOLE) &&
75	    !IS_ENABLED(CONFIG_EXPERT))
76		request_module_nowait("fbcon");
77
78	return drm_dp_aux_dev_init();
 
79}
80
81static void __exit drm_kms_helper_exit(void)
82{
83	/* Call exit functions from specific kms helpers here */
84	drm_dp_aux_dev_exit();
85}
86
87module_init(drm_kms_helper_init);
88module_exit(drm_kms_helper_exit);