drivers/soc/tegra/common.c

   1 /*
   2  * Copyright (C) 2014 NVIDIA CORPORATION.  All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #include <linux/of.h>
  10
  11 #include <soc/tegra/common.h>
  12
  13 static const struct of_device_id tegra_machine_match[] = {
  14         { .compatible = "nvidia,tegra20", },
  15         { .compatible = "nvidia,tegra30", },
  16         { .compatible = "nvidia,tegra114", },
  17         { .compatible = "nvidia,tegra124", },
  18         { .compatible = "nvidia,tegra132", },
  19         { .compatible = "nvidia,tegra210", },
  20         { }
  21 };
  22
  23 bool soc_is_tegra(void)
  24 {
  25         const struct of_device_id *match;
  26         struct device_node *root;
  27
  28         root = of_find_node_by_path("/");
  29         if (!root)
  30                 return false;
  31
  32         match = of_match_node(tegra_machine_match, root);
  33         of_node_put(root);
  34
  35         return match != NULL;
  36 }