clk/uniphier/clk-uniphier-fixed-factor.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Copyright (C) 2016 Socionext Inc.
0004  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
0005  */
0006
0007 #include <linux/clk-provider.h>
0008 #include <linux/device.h>
0009
0010 #include "clk-uniphier.h"
0011
0012 struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev,
0013                           const char *name,
0014             const struct uniphier_clk_fixed_factor_data *data)
0015 {
0016     struct clk_fixed_factor *fix;
0017     struct clk_init_data init;
0018     int ret;
0019
0020     fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL);
0021     if (!fix)
0022         return ERR_PTR(-ENOMEM);
0023
0024     init.name = name;
0025     init.ops = &clk_fixed_factor_ops;
0026     init.flags = data->parent_name ? CLK_SET_RATE_PARENT : 0;
0027     init.parent_names = data->parent_name ? &data->parent_name : NULL;
0028     init.num_parents = data->parent_name ? 1 : 0;
0029
0030     fix->mult = data->mult;
0031     fix->div = data->div;
0032     fix->hw.init = &init;
0033
0034     ret = devm_clk_hw_register(dev, &fix->hw);
0035     if (ret)
0036         return ERR_PTR(ret);
0037
0038     return &fix->hw;
0039 }