drivers/clk/hisilicon/clk-hip04.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Hisilicon HiP04 clock driver
   4  *
   5  * Copyright (c) 2013-2014 Hisilicon Limited.
   6  * Copyright (c) 2013-2014 Linaro Limited.
   7  *
   8  * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/clk-provider.h>
  13 #include <linux/io.h>
  14 #include <linux/slab.h>
  15
  16 #include <dt-bindings/clock/hip04-clock.h>
  17
  18 #include "clk.h"
  19
  20 /* fixed rate clocks */
  21 static struct hisi_fixed_rate_clock hip04_fixed_rate_clks[] __initdata = {
  22         { HIP04_OSC50M,   "osc50m",   NULL, 0, 50000000, },
  23         { HIP04_CLK_50M,  "clk50m",   NULL, 0, 50000000, },
  24         { HIP04_CLK_168M, "clk168m",  NULL, 0, 168750000, },
  25 };
  26
  27 static void __init hip04_clk_init(struct device_node *np)
  28 {
  29         struct hisi_clock_data *clk_data;
  30
  31         clk_data = hisi_clk_init(np, HIP04_NR_CLKS);
  32         if (!clk_data)
  33                 return;
  34
  35         hisi_clk_register_fixed_rate(hip04_fixed_rate_clks,
  36                                      ARRAY_SIZE(hip04_fixed_rate_clks),
  37                                      clk_data);
  38 }
  39 CLK_OF_DECLARE(hip04_clk, "hisilicon,hip04-clock", hip04_clk_init);