1/* arch/arm/mach-msm/clock.h 2 * 3 * Copyright (C) 2007 Google, Inc. 4 * Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved. 5 * 6 * This software is licensed under the terms of the GNU General Public 7 * License version 2, as published by the Free Software Foundation, and 8 * may be copied, distributed, and modified under those terms. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 */ 16 17#ifndef __ARCH_ARM_MACH_MSM_CLOCK_H 18#define __ARCH_ARM_MACH_MSM_CLOCK_H 19 20#include <linux/init.h> 21#include <linux/list.h> 22#include <mach/clk.h> 23 24#define CLKFLAG_INVERT 0x00000001 25#define CLKFLAG_NOINVERT 0x00000002 26#define CLKFLAG_NONEST 0x00000004 27#define CLKFLAG_NORESET 0x00000008 28 29#define CLK_FIRST_AVAILABLE_FLAG 0x00000100 30#define CLKFLAG_AUTO_OFF 0x00000200 31#define CLKFLAG_MIN 0x00000400 32#define CLKFLAG_MAX 0x00000800 33 34struct clk_ops { 35 int (*enable)(unsigned id); 36 void (*disable)(unsigned id); 37 void (*auto_off)(unsigned id); 38 int (*reset)(unsigned id, enum clk_reset_action action); 39 int (*set_rate)(unsigned id, unsigned rate); 40 int (*set_min_rate)(unsigned id, unsigned rate); 41 int (*set_max_rate)(unsigned id, unsigned rate); 42 int (*set_flags)(unsigned id, unsigned flags); 43 unsigned (*get_rate)(unsigned id); 44 unsigned (*is_enabled)(unsigned id); 45 long (*round_rate)(unsigned id, unsigned rate); 46 bool (*is_local)(unsigned id); 47}; 48 49struct clk { 50 uint32_t id; 51 uint32_t remote_id; 52 uint32_t count; 53 uint32_t flags; 54 struct clk_ops *ops; 55 const char *dbg_name; 56 struct list_head list; 57}; 58 59#define OFF CLKFLAG_AUTO_OFF 60#define CLK_MIN CLKFLAG_MIN 61#define CLK_MAX CLKFLAG_MAX 62#define CLK_MINMAX (CLK_MIN | CLK_MAX) 63 64#ifdef CONFIG_DEBUG_FS 65int __init clock_debug_init(void); 66int __init clock_debug_add(struct clk *clock); 67#else 68static inline int __init clock_debug_init(void) { return 0; } 69static inline int __init clock_debug_add(struct clk *clock) { return 0; } 70#endif 71 72#endif 73