LCOV - code coverage report
Current view: top level - drivers/gpu/drm - drm_kms_helper_common.c (source / functions) Hit Total Coverage
Test: combined.info Lines: 5 8 62.5 %
Date: 2022-04-01 14:35:51 Functions: 1 2 50.0 %
Branches: 0 0 -

           Branch data     Line data    Source code
       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                 :            : 
      34                 :            : MODULE_AUTHOR("David Airlie, Jesse Barnes");
      35                 :            : MODULE_DESCRIPTION("DRM KMS helper");
      36                 :            : MODULE_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 */
      41                 :            : static 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                 :            : 
      48                 :            : static int edid_firmware_get(char *buffer, const struct kernel_param *kp)
      49                 :            : {
      50                 :            :         return __drm_get_edid_firmware_path(buffer, PAGE_SIZE);
      51                 :            : }
      52                 :            : 
      53                 :            : static const struct kernel_param_ops edid_firmware_ops = {
      54                 :            :         .set = edid_firmware_set,
      55                 :            :         .get = edid_firmware_get,
      56                 :            : };
      57                 :            : 
      58                 :            : module_param_cb(edid_firmware, &edid_firmware_ops, NULL, 0644);
      59                 :            : __MODULE_PARM_TYPE(edid_firmware, "charp");
      60                 :            : MODULE_PARM_DESC(edid_firmware,
      61                 :            :                  "DEPRECATED. Use drm.edid_firmware module parameter instead.");
      62                 :            : 
      63                 :            : #endif
      64                 :            : 
      65                 :         21 : static int __init drm_kms_helper_init(void)
      66                 :            : {
      67                 :         21 :         int ret;
      68                 :            : 
      69                 :            :         /* Call init functions from specific kms helpers here */
      70                 :         21 :         ret = drm_fb_helper_modinit();
      71                 :         21 :         if (ret < 0)
      72                 :            :                 goto out;
      73                 :            : 
      74                 :            :         ret = drm_dp_aux_dev_init();
      75                 :            :         if (ret < 0)
      76                 :            :                 goto out;
      77                 :            : 
      78                 :            : out:
      79                 :         21 :         return ret;
      80                 :            : }
      81                 :            : 
      82                 :          0 : static void __exit drm_kms_helper_exit(void)
      83                 :            : {
      84                 :            :         /* Call exit functions from specific kms helpers here */
      85                 :          0 :         drm_dp_aux_dev_exit();
      86                 :          0 : }
      87                 :            : 
      88                 :            : module_init(drm_kms_helper_init);
      89                 :            : module_exit(drm_kms_helper_exit);

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