diff options
Diffstat (limited to 'kernel/drivers/clk/hisilicon/clk-hip04.c')
| -rw-r--r-- | kernel/drivers/clk/hisilicon/clk-hip04.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/kernel/drivers/clk/hisilicon/clk-hip04.c b/kernel/drivers/clk/hisilicon/clk-hip04.c new file mode 100644 index 000000000..132b57a0c --- /dev/null +++ b/kernel/drivers/clk/hisilicon/clk-hip04.c @@ -0,0 +1,58 @@ +/* + * Hisilicon HiP04 clock driver + * + * Copyright (c) 2013-2014 Hisilicon Limited. + * Copyright (c) 2013-2014 Linaro Limited. + * + * Author: Haojian Zhuang <haojian.zhuang@linaro.org> + * + * 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#include <linux/kernel.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/slab.h> +#include <linux/clk.h> + +#include <dt-bindings/clock/hip04-clock.h> + +#include "clk.h" + +/* fixed rate clocks */ +static struct hisi_fixed_rate_clock hip04_fixed_rate_clks[] __initdata = { + { HIP04_OSC50M, "osc50m", NULL, CLK_IS_ROOT, 50000000, }, + { HIP04_CLK_50M, "clk50m", NULL, CLK_IS_ROOT, 50000000, }, + { HIP04_CLK_168M, "clk168m", NULL, CLK_IS_ROOT, 168750000, }, +}; + +static void __init hip04_clk_init(struct device_node *np) +{ + struct hisi_clock_data *clk_data; + + clk_data = hisi_clk_init(np, HIP04_NR_CLKS); + if (!clk_data) + return; + + hisi_clk_register_fixed_rate(hip04_fixed_rate_clks, + ARRAY_SIZE(hip04_fixed_rate_clks), + clk_data); +} +CLK_OF_DECLARE(hip04_clk, "hisilicon,hip04-clock", hip04_clk_init); |