LXR linux/arch/arm/mach-msm/clock.h

   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/list.h>
  21#include <mach/clk.h>
  22
  23#include "clock-pcom.h"
  24#include "clock-7x30.h"
  25
  26#define CLKFLAG_INVERT                  0x00000001
  27#define CLKFLAG_NOINVERT                0x00000002
  28#define CLKFLAG_NONEST                  0x00000004
  29#define CLKFLAG_NORESET                 0x00000008
  30
  31#define CLK_FIRST_AVAILABLE_FLAG        0x00000100
  32#define CLKFLAG_AUTO_OFF                0x00000200
  33#define CLKFLAG_MIN                     0x00000400
  34#define CLKFLAG_MAX                     0x00000800
  35
  36struct clk_ops {
  37        int (*enable)(unsigned id);
  38        void (*disable)(unsigned id);
  39        void (*auto_off)(unsigned id);
  40        int (*reset)(unsigned id, enum clk_reset_action action);
  41        int (*set_rate)(unsigned id, unsigned rate);
  42        int (*set_min_rate)(unsigned id, unsigned rate);
  43        int (*set_max_rate)(unsigned id, unsigned rate);
  44        int (*set_flags)(unsigned id, unsigned flags);
  45        unsigned (*get_rate)(unsigned id);
  46        unsigned (*is_enabled)(unsigned id);
  47        long (*round_rate)(unsigned id, unsigned rate);
  48};
  49
  50struct clk {
  51        uint32_t id;
  52        uint32_t remote_id;
  53        uint32_t count;
  54        uint32_t flags;
  55        const char *name;
  56        struct clk_ops *ops;
  57        const char *dbg_name;
  58        struct list_head list;
  59        struct device *dev;
  60};
  61
  62#define A11S_CLK_CNTL_ADDR              (MSM_CSR_BASE + 0x100)
  63#define A11S_CLK_SEL_ADDR               (MSM_CSR_BASE + 0x104)
  64#define A11S_VDD_SVS_PLEVEL_ADDR        (MSM_CSR_BASE + 0x124)
  65
  66#ifdef CONFIG_DEBUG_FS
  67#define CLOCK_DBG_NAME(x) .dbg_name = x,
  68#else
  69#define CLOCK_DBG_NAME(x)
  70#endif
  71
  72#define CLOCK(clk_name, clk_id, clk_dev, clk_flags) {   \
  73        .name = clk_name, \
  74        .id = clk_id, \
  75        .flags = clk_flags, \
  76        .dev = clk_dev, \
  77         CLOCK_DBG_NAME(#clk_id) \
  78        }
  79
  80#define OFF CLKFLAG_AUTO_OFF
  81#define CLK_MIN CLKFLAG_MIN
  82#define CLK_MAX CLKFLAG_MAX
  83#define CLK_MINMAX (CLK_MIN | CLK_MAX)
  84#define NR_CLKS P_NR_CLKS
  85
  86enum {
  87        PLL_0 = 0,
  88        PLL_1,
  89        PLL_2,
  90        PLL_3,
  91        PLL_4,
  92        PLL_5,
  93        PLL_6,
  94        NUM_PLL
  95};
  96
  97enum clkvote_client {
  98        CLKVOTE_ACPUCLK = 0,
  99        CLKVOTE_PMQOS,
 100        CLKVOTE_MAX,
 101};
 102
 103int msm_clock_require_tcxo(unsigned long *reason, int nbits);
 104int msm_clock_get_name(uint32_t id, char *name, uint32_t size);
 105int ebi1_clk_set_min_rate(enum clkvote_client client, unsigned long rate);
 106unsigned long clk_get_max_axi_khz(void);
 107
 108#endif
 109
 110