drivers/clk/loongson1/clk.c

   1 /*
   2  * Copyright (c) 2012-2016 Zhang, Keguang <keguang.zhang@gmail.com>
   3  *
   4  * This program is free software; you can redistribute  it and/or modify it
   5  * under  the terms of  the GNU General  Public License as published by the
   6  * Free Software Foundation;  either version 2 of the  License, or (at your
   7  * option) any later version.
   8  */
   9
  10 #include <linux/clk-provider.h>
  11 #include <linux/slab.h>
  12
  13 struct clk_hw *__init clk_hw_register_pll(struct device *dev,
  14                                           const char *name,
  15                                           const char *parent_name,
  16                                           const struct clk_ops *ops,
  17                                           unsigned long flags)
  18 {
  19         int ret;
  20         struct clk_hw *hw;
  21         struct clk_init_data init;
  22
  23         /* allocate the divider */
  24         hw = kzalloc(sizeof(*hw), GFP_KERNEL);
  25         if (!hw)
  26                 return ERR_PTR(-ENOMEM);
  27
  28         init.name = name;
  29         init.ops = ops;
  30         init.flags = flags | CLK_IS_BASIC;
  31         init.parent_names = (parent_name ? &parent_name : NULL);
  32         init.num_parents = (parent_name ? 1 : 0);
  33         hw->init = &init;
  34
  35         /* register the clock */
  36         ret = clk_hw_register(dev, hw);
  37         if (ret) {
  38                 kfree(hw);
  39                 hw = ERR_PTR(ret);
  40         }
  41
  42         return hw;
  43 }