58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
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/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Code Aurora Forum, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef __MACH_CLK_H
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#define __MACH_CLK_H
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/* Magic rate value for use with PM QOS to request the board's maximum
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* supported AXI rate. PM QOS will only pass positive s32 rate values
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* through to the clock driver, so INT_MAX is used.
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*/
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#define MSM_AXI_MAX_FREQ LONG_MAX
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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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struct clk;
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/* Rate is minimum clock rate in Hz */
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int clk_set_min_rate(struct clk *clk, unsigned long rate);
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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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