89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/*
|
|
* Copyright © 2015 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 (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 NONINFRINGEMENT. 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.
|
|
*
|
|
* Authors:
|
|
* Rafael Antognolli <rafael.antognolli@intel.com>
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <drm/drm_print.h>
|
|
|
|
#include "drm_crtc_helper_internal.h"
|
|
|
|
MODULE_AUTHOR("David Airlie, Jesse Barnes");
|
|
MODULE_DESCRIPTION("DRM KMS helper");
|
|
MODULE_LICENSE("GPL and additional rights");
|
|
|
|
#if IS_ENABLED(CONFIG_DRM_LOAD_EDID_FIRMWARE)
|
|
|
|
/* Backward compatibility for drm_kms_helper.edid_firmware */
|
|
static int edid_firmware_set(const char *val, const struct kernel_param *kp)
|
|
{
|
|
DRM_NOTE("drm_kms_helper.edid_firmware is deprecated, please use drm.edid_firmware instead.\n");
|
|
|
|
return __drm_set_edid_firmware_path(val);
|
|
}
|
|
|
|
static int edid_firmware_get(char *buffer, const struct kernel_param *kp)
|
|
{
|
|
return __drm_get_edid_firmware_path(buffer, PAGE_SIZE);
|
|
}
|
|
|
|
static const struct kernel_param_ops edid_firmware_ops = {
|
|
.set = edid_firmware_set,
|
|
.get = edid_firmware_get,
|
|
};
|
|
|
|
module_param_cb(edid_firmware, &edid_firmware_ops, NULL, 0644);
|
|
__MODULE_PARM_TYPE(edid_firmware, "charp");
|
|
MODULE_PARM_DESC(edid_firmware,
|
|
"DEPRECATED. Use drm.edid_firmware module parameter instead.");
|
|
|
|
#endif
|
|
|
|
static int __init drm_kms_helper_init(void)
|
|
{
|
|
/*
|
|
* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
|
|
* but the module doesn't depend on any fb console symbols. At least
|
|
* attempt to load fbcon to avoid leaving the system without a usable
|
|
* console.
|
|
*/
|
|
if (IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) &&
|
|
IS_MODULE(CONFIG_FRAMEBUFFER_CONSOLE) &&
|
|
!IS_ENABLED(CONFIG_EXPERT))
|
|
request_module_nowait("fbcon");
|
|
|
|
return drm_dp_aux_dev_init();
|
|
}
|
|
|
|
static void __exit drm_kms_helper_exit(void)
|
|
{
|
|
/* Call exit functions from specific kms helpers here */
|
|
drm_dp_aux_dev_exit();
|
|
}
|
|
|
|
module_init(drm_kms_helper_init);
|
|
module_exit(drm_kms_helper_exit);
|