LXR linux/drivers/clk/uniphier/clk-uniphier-fixed-factor.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright (C) 2016 Socionext Inc.
   4 *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
   5 */
   6
   7#include <linux/clk-provider.h>
   8#include <linux/device.h>
   9
  10#include "clk-uniphier.h"
  11
  12struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev,
  13                                                  const char *name,
  14                        const struct uniphier_clk_fixed_factor_data *data)
  15{
  16        struct clk_fixed_factor *fix;
  17        struct clk_init_data init;
  18        int ret;
  19
  20        fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL);
  21        if (!fix)
  22                return ERR_PTR(-ENOMEM);
  23
  24        init.name = name;
  25        init.ops = &clk_fixed_factor_ops;
  26        init.flags = data->parent_name ? CLK_SET_RATE_PARENT : 0;
  27        init.parent_names = data->parent_name ? &data->parent_name : NULL;
  28        init.num_parents = data->parent_name ? 1 : 0;
  29
  30        fix->mult = data->mult;
  31        fix->div = data->div;
  32        fix->hw.init = &init;
  33
  34        ret = devm_clk_hw_register(dev, &fix->hw);
  35        if (ret)
  36                return ERR_PTR(ret);
  37
  38        return &fix->hw;
  39}
  40