/* 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