linux_dsm_epyc7002/drivers/clk/uniphier/clk-uniphier-fixed-factor.c
Masahiro Yamada 734d82f4a6 clk: uniphier: add core support code for UniPhier clock driver
This includes UniPhier clock driver code, except SoC-specific
data arrays.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-09-16 16:31:33 -07:00

49 lines
1.4 KiB
C

/*
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk-provider.h>
#include <linux/device.h>
#include "clk-uniphier.h"
struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev,
const char *name,
const struct uniphier_clk_fixed_factor_data *data)
{
struct clk_fixed_factor *fix;
struct clk_init_data init;
int ret;
fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL);
if (!fix)
return ERR_PTR(-ENOMEM);
init.name = name;
init.ops = &clk_fixed_factor_ops;
init.flags = data->parent_name ? CLK_SET_RATE_PARENT : 0;
init.parent_names = data->parent_name ? &data->parent_name : NULL;
init.num_parents = data->parent_name ? 1 : 0;
fix->mult = data->mult;
fix->div = data->div;
fix->hw.init = &init;
ret = devm_clk_hw_register(dev, &fix->hw);
if (ret)
return ERR_PTR(ret);
return &fix->hw;
}