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Based on the normalized pattern:
this program is free software you can redistribute it and/or modify it
under the terms of the gnu general public license version 2 as
published by the free software foundation this program is distributed
as is without any warranty of any kind whether express or implied
without even the implied warranty of merchantability or fitness for a
particular purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference.
Reviewed-by: Allison Randal <allison@lohutok.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* TI Fixed Factor Clock
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*
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* Copyright (C) 2013 Texas Instruments, Inc.
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*
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* Tero Kristo <t-kristo@ti.com>
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*/
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#include <linux/clk-provider.h>
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#include <linux/slab.h>
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#include <linux/err.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/clk/ti.h>
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#include "clock.h"
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#undef pr_fmt
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#define pr_fmt(fmt) "%s: " fmt, __func__
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/**
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* of_ti_fixed_factor_clk_setup - Setup function for TI fixed factor clock
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* @node: device node for this clock
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*
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* Sets up a simple fixed factor clock based on device tree info.
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*/
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static void __init of_ti_fixed_factor_clk_setup(struct device_node *node)
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{
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struct clk *clk;
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const char *clk_name = ti_dt_clk_name(node);
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const char *parent_name;
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u32 div, mult;
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u32 flags = 0;
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if (of_property_read_u32(node, "ti,clock-div", &div)) {
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pr_err("%pOFn must have a clock-div property\n", node);
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return;
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}
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if (of_property_read_u32(node, "ti,clock-mult", &mult)) {
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pr_err("%pOFn must have a clock-mult property\n", node);
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return;
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}
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if (of_property_read_bool(node, "ti,set-rate-parent"))
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flags |= CLK_SET_RATE_PARENT;
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parent_name = of_clk_get_parent_name(node, 0);
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clk = clk_register_fixed_factor(NULL, clk_name, parent_name, flags,
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mult, div);
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if (!IS_ERR(clk)) {
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of_clk_add_provider(node, of_clk_src_simple_get, clk);
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of_ti_clk_autoidle_setup(node);
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ti_clk_add_alias(NULL, clk, clk_name);
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}
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}
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CLK_OF_DECLARE(ti_fixed_factor_clk, "ti,fixed-factor-clock",
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of_ti_fixed_factor_clk_setup);
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