drivers/clk/clk-uclass.c

   1 /*
   2  * Copyright (C) 2015 Google, Inc
   3  * Written by Simon Glass <sjg@chromium.org>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <clk.h>
  10 #include <dm.h>
  11 #include <errno.h>
  12 #include <dm/lists.h>
  13 #include <dm/root.h>
  14
  15 ulong clk_get_rate(struct udevice *dev)
  16 {
  17         struct clk_ops *ops = clk_get_ops(dev);
  18
  19         if (!ops->get_rate)
  20                 return -ENOSYS;
  21
  22         return ops->get_rate(dev);
  23 }
  24
  25 ulong clk_set_rate(struct udevice *dev, ulong rate)
  26 {
  27         struct clk_ops *ops = clk_get_ops(dev);
  28
  29         if (!ops->set_rate)
  30                 return -ENOSYS;
  31
  32         return ops->set_rate(dev, rate);
  33 }
  34
  35 ulong clk_get_periph_rate(struct udevice *dev, int periph)
  36 {
  37         struct clk_ops *ops = clk_get_ops(dev);
  38
  39         if (!ops->get_periph_rate)
  40                 return -ENOSYS;
  41
  42         return ops->get_periph_rate(dev, periph);
  43 }
  44
  45 ulong clk_set_periph_rate(struct udevice *dev, int periph, ulong rate)
  46 {
  47         struct clk_ops *ops = clk_get_ops(dev);
  48
  49         if (!ops->set_periph_rate)
  50                 return -ENOSYS;
  51
  52         return ops->set_periph_rate(dev, periph, rate);
  53 }
  54
  55 UCLASS_DRIVER(clk) = {
  56         .id             = UCLASS_CLK,
  57         .name           = "clk",
  58 };