| /* 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 Forum, Inc. 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 "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); |
| |
| /* Set clock-specific configuration parameters */ |
| int clk_set_flags(struct clk *clk, unsigned long flags); |
| |
| #endif |
