LCOV - code coverage report
Current view: top level - drivers/regulator - dummy.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 22 0.0 %
Date: 2014-02-18 Functions: 0 2 0.0 %
Branches: 0 8 0.0 %

           Branch data     Line data    Source code
       1                 :            : /*
       2                 :            :  * dummy.c
       3                 :            :  *
       4                 :            :  * Copyright 2010 Wolfson Microelectronics PLC.
       5                 :            :  *
       6                 :            :  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
       7                 :            :  *
       8                 :            :  * This program is free software; you can redistribute it and/or
       9                 :            :  * modify it under the terms of the GNU General Public License as
      10                 :            :  * published by the Free Software Foundation; either version 2 of the
      11                 :            :  * License, or (at your option) any later version.
      12                 :            :  *
      13                 :            :  * This is useful for systems with mixed controllable and
      14                 :            :  * non-controllable regulators, as well as for allowing testing on
      15                 :            :  * systems with no controllable regulators.
      16                 :            :  */
      17                 :            : 
      18                 :            : #include <linux/err.h>
      19                 :            : #include <linux/export.h>
      20                 :            : #include <linux/platform_device.h>
      21                 :            : #include <linux/regulator/driver.h>
      22                 :            : #include <linux/regulator/machine.h>
      23                 :            : 
      24                 :            : #include "dummy.h"
      25                 :            : 
      26                 :            : struct regulator_dev *dummy_regulator_rdev;
      27                 :            : 
      28                 :            : static struct regulator_init_data dummy_initdata;
      29                 :            : 
      30                 :            : static struct regulator_ops dummy_ops;
      31                 :            : 
      32                 :            : static struct regulator_desc dummy_desc = {
      33                 :            :         .name = "regulator-dummy",
      34                 :            :         .id = -1,
      35                 :            :         .type = REGULATOR_VOLTAGE,
      36                 :            :         .owner = THIS_MODULE,
      37                 :            :         .ops = &dummy_ops,
      38                 :            : };
      39                 :            : 
      40                 :          0 : static int dummy_regulator_probe(struct platform_device *pdev)
      41                 :            : {
      42                 :          0 :         struct regulator_config config = { };
      43                 :            :         int ret;
      44                 :            : 
      45                 :          0 :         config.dev = &pdev->dev;
      46                 :          0 :         config.init_data = &dummy_initdata;
      47                 :            : 
      48                 :          0 :         dummy_regulator_rdev = regulator_register(&dummy_desc, &config);
      49         [ #  # ]:          0 :         if (IS_ERR(dummy_regulator_rdev)) {
      50                 :            :                 ret = PTR_ERR(dummy_regulator_rdev);
      51                 :          0 :                 pr_err("Failed to register regulator: %d\n", ret);
      52                 :          0 :                 return ret;
      53                 :            :         }
      54                 :            : 
      55                 :            :         return 0;
      56                 :            : }
      57                 :            : 
      58                 :            : static struct platform_driver dummy_regulator_driver = {
      59                 :            :         .probe          = dummy_regulator_probe,
      60                 :            :         .driver         = {
      61                 :            :                 .name           = "reg-dummy",
      62                 :            :                 .owner          = THIS_MODULE,
      63                 :            :         },
      64                 :            : };
      65                 :            : 
      66                 :            : static struct platform_device *dummy_pdev;
      67                 :            : 
      68                 :          0 : void __init regulator_dummy_init(void)
      69                 :            : {
      70                 :            :         int ret;
      71                 :            : 
      72                 :          0 :         dummy_pdev = platform_device_alloc("reg-dummy", -1);
      73         [ #  # ]:          0 :         if (!dummy_pdev) {
      74                 :          0 :                 pr_err("Failed to allocate dummy regulator device\n");
      75                 :          0 :                 return;
      76                 :            :         }
      77                 :            : 
      78                 :          0 :         ret = platform_device_add(dummy_pdev);
      79         [ #  # ]:          0 :         if (ret != 0) {
      80                 :          0 :                 pr_err("Failed to register dummy regulator device: %d\n", ret);
      81                 :          0 :                 platform_device_put(dummy_pdev);
      82                 :          0 :                 return;
      83                 :            :         }
      84                 :            : 
      85                 :          0 :         ret = platform_driver_register(&dummy_regulator_driver);
      86         [ #  # ]:          0 :         if (ret != 0) {
      87                 :          0 :                 pr_err("Failed to register dummy regulator driver: %d\n", ret);
      88                 :          0 :                 platform_device_unregister(dummy_pdev);
      89                 :            :         }
      90                 :            : }

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