48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
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/* Copyright (c) 2009, 2012-2013 The Linux Foundation. All rights reserved.
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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 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* 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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#ifndef __MACH_CLK_H
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#define __MACH_CLK_H
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#define CLKFLAG_INVERT 0x00000001
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#define CLKFLAG_NOINVERT 0x00000002
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#define CLKFLAG_NONEST 0x00000004
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#define CLKFLAG_NORESET 0x00000008
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#define CLKFLAG_RETAIN_PERIPH 0x00000010
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#define CLKFLAG_NORETAIN_PERIPH 0x00000020
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#define CLKFLAG_RETAIN_MEM 0x00000040
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#define CLKFLAG_NORETAIN_MEM 0x00000080
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#define CLKFLAG_SKIP_HANDOFF 0x00000100
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#define CLKFLAG_MIN 0x00000400
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#define CLKFLAG_MAX 0x00000800
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#define CLKFLAG_INIT_DONE 0x00001000
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#define CLKFLAG_INIT_ERR 0x00002000
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#define CLKFLAG_NO_RATE_CACHE 0x00004000
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struct clk_lookup;
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struct clk;
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enum clk_reset_action {
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CLK_RESET_DEASSERT = 0,
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CLK_RESET_ASSERT = 1
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};
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/* Rate is maximum clock rate in Hz */
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int clk_set_max_rate(struct clk *clk, unsigned long rate);
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/* Assert/Deassert reset to a hardware block associated with a clock */
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int clk_reset(struct clk *clk, enum clk_reset_action action);
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/* Set clock-specific configuration parameters */
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int clk_set_flags(struct clk *clk, unsigned long flags);
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#endif
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