55 lines
2.3 KiB
C
55 lines
2.3 KiB
C
/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of Code Aurora nor
|
|
* the names of its contributors may be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
#ifndef __MACH_CLK_H
|
|
#define __MACH_CLK_H
|
|
|
|
/* Magic rate value for use with PM QOS to request the board's maximum
|
|
* supported AXI rate. PM QOS will only pass positive s32 rate values
|
|
* through to the clock driver, so INT_MAX is used.
|
|
*/
|
|
#define MSM_AXI_MAX_FREQ LONG_MAX
|
|
|
|
enum clk_reset_action {
|
|
CLK_RESET_DEASSERT = 0,
|
|
CLK_RESET_ASSERT = 1
|
|
};
|
|
|
|
struct clk;
|
|
|
|
/* Rate is minimum clock rate in Hz */
|
|
int clk_set_min_rate(struct clk *clk, unsigned long rate);
|
|
|
|
/* Rate is maximum clock rate in Hz */
|
|
int clk_set_max_rate(struct clk *clk, unsigned long rate);
|
|
|
|
/* Assert/Deassert reset to a hardware block associated with a clock */
|
|
int clk_reset(struct clk *clk, enum clk_reset_action action);
|
|
|
|
int clk_set_flags(struct clk *clk, unsigned long flags);
|
|
#endif
|