forked from luck/tmp_suning_uos_patched
bf22bae794
This is no longer needed in platform directory, as the legacy clock data is gone, so move it under TI clock driver. Some static functions are renamed also. Signed-off-by: Tero Kristo <t-kristo@ti.com>
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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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 = node->name;
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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("%s must have a clock-div property\n", node->name);
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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("%s must have a clock-mult property\n", node->name);
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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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}
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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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