1 /* 2 * Copyright (C) 2016 Socionext Inc. 3 * Author: Masahiro Yamada <yamada.masahiro@socionext.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16 #include <linux/clk-provider.h> 17 #include <linux/device.h> 18 19 #include "clk-uniphier.h" 20 21 struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev, 22 const char *name, 23 const struct uniphier_clk_fixed_factor_data *data) 24 { 25 struct clk_fixed_factor *fix; 26 struct clk_init_data init; 27 int ret; 28 29 fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL); 30 if (!fix) 31 return ERR_PTR(-ENOMEM); 32 33 init.name = name; 34 init.ops = &clk_fixed_factor_ops; 35 init.flags = data->parent_name ? CLK_SET_RATE_PARENT : 0; 36 init.parent_names = data->parent_name ? &data->parent_name : NULL; 37 init.num_parents = data->parent_name ? 1 : 0; 38 39 fix->mult = data->mult; 40 fix->div = data->div; 41 fix->hw.init = &init; 42 43 ret = devm_clk_hw_register(dev, &fix->hw); 44 if (ret) 45 return ERR_PTR(ret); 46 47 return &fix->hw; 48 } 49