arch/arm/mach-rockchip/rk3399/clk_rk3399.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 Google, Inc
   4  * Written by Simon Glass <sjg@chromium.org>
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <syscon.h>
  10 #include <asm/arch/clock.h>
  11 #include <asm/arch/cru_rk3399.h>
  12
  13 static int rockchip_get_cruclk(struct udevice **devp)
  14 {
  15         return uclass_get_device_by_driver(UCLASS_CLK,
  16                         DM_GET_DRIVER(clk_rk3399), devp);
  17 }
  18
  19 void *rockchip_get_cru(void)
  20 {
  21         struct rk3399_clk_priv *priv;
  22         struct udevice *dev;
  23         int ret;
  24
  25         ret = rockchip_get_cruclk(&dev);
  26         if (ret)
  27                 return ERR_PTR(ret);
  28
  29         priv = dev_get_priv(dev);
  30
  31         return priv->cru;
  32 }
  33
  34 static int rockchip_get_pmucruclk(struct udevice **devp)
  35 {
  36         return uclass_get_device_by_driver(UCLASS_CLK,
  37                         DM_GET_DRIVER(rockchip_rk3399_pmuclk), devp);
  38 }
  39
  40 void *rockchip_get_pmucru(void)
  41 {
  42         struct rk3399_pmuclk_priv *priv;
  43         struct udevice *dev;
  44         int ret;
  45
  46         ret = rockchip_get_pmucruclk(&dev);
  47         if (ret)
  48                 return ERR_PTR(ret);
  49
  50         priv = dev_get_priv(dev);
  51
  52         return priv->pmucru;
  53 }