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73 lines
1.9 KiB
73 lines
1.9 KiB
13 years ago
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/*
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* linux/include/linux/clk-private.h
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*
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* Copyright (c) 2010-2011 Jeremy Kerr <jeremy.kerr@canonical.com>
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* Copyright (C) 2011-2012 Linaro Ltd <mturquette@linaro.org>
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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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#ifndef __LINUX_CLK_PRIVATE_H
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#define __LINUX_CLK_PRIVATE_H
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#include <linux/clk-provider.h>
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#include <linux/list.h>
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/*
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* WARNING: Do not include clk-private.h from any file that implements struct
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* clk_ops. Doing so is a layering violation!
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*
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* This header exists only to allow for statically initialized clock data. Any
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* static clock data must be defined in a separate file from the logic that
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* implements the clock operations for that same data.
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*/
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#ifdef CONFIG_COMMON_CLK
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struct clk {
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const char *name;
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const struct clk_ops *ops;
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struct clk_hw *hw;
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struct clk *parent;
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char **parent_names;
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struct clk **parents;
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u8 num_parents;
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unsigned long rate;
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unsigned long new_rate;
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unsigned long flags;
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unsigned int enable_count;
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unsigned int prepare_count;
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struct hlist_head children;
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struct hlist_node child_node;
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unsigned int notifier_count;
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#ifdef CONFIG_COMMON_CLK_DEBUG
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struct dentry *dentry;
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#endif
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};
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/**
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* __clk_init - initialize the data structures in a struct clk
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* @dev: device initializing this clk, placeholder for now
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* @clk: clk being initialized
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*
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* Initializes the lists in struct clk, queries the hardware for the
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* parent and rate and sets them both.
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*
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* Any struct clk passed into __clk_init must have the following members
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* populated:
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* .name
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* .ops
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* .hw
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* .parent_names
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* .num_parents
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* .flags
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*
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* It is not necessary to call clk_register if __clk_init is used directly with
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* statically initialized clock data.
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*/
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void __clk_init(struct device *dev, struct clk *clk);
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#endif /* CONFIG_COMMON_CLK */
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#endif /* CLK_PRIVATE_H */
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