git.sur5r.net Git - u-boot/blob - arch/arm/mach-rockchip/rk3399/clk_rk3399.c

   1 /*
   2  * Copyright (C) 2016 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 <dm.h>
  10 #include <syscon.h>
  11 #include <asm/arch/clock.h>
  12 #include <asm/arch/cru_rk3399.h>
  13
  14 static int rockchip_get_cruclk(struct udevice **devp)
  15 {
  16         return uclass_get_device_by_driver(UCLASS_CLK,
  17                         DM_GET_DRIVER(clk_rk3399), devp);
  18 }
  19
  20 void *rockchip_get_cru(void)
  21 {
  22         struct rk3399_clk_priv *priv;
  23         struct udevice *dev;
  24         int ret;
  25
  26         ret = rockchip_get_cruclk(&dev);
  27         if (ret)
  28                 return ERR_PTR(ret);
  29
  30         priv = dev_get_priv(dev);
  31
  32         return priv->cru;
  33 }