arch/arm/mach-s5pv310/include/mach/cpufreq.h

   1 /* linux/arch/arm/mach-s5pv310/include/mach/cpufreq.h
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9 */
  10
  11 /* CPUFreq for S5PV310/S5PC210 */
  12
  13 /* CPU frequency level index for using cpufreq lock API
  14  * This should be same with cpufreq_frequency_table
  15 */
  16 #ifndef __MACH_CPUFREQ_H
  17 #define __MACH_CPUFREQ_H __FILE__
  18 #include <linux/cpufreq.h>
  19
  20 enum cpufreq_level_request{
  21 #ifdef CONFIG_S5PV310_ENABLE_1200MHZ
  22         CPU_L0,         /* 1200MHz */
  23 #endif
  24         CPU_L1,         /* 1000MHz */
  25         CPU_L2,         /* 800MHz */
  26         CPU_L3,         /* 500MHz */
  27         CPU_L4,         /* 200MHz */
  28         CPU_LEVEL_END,
  29 };
  30
  31 enum busfreq_level_request{
  32         BUS_L0,         /* MEM 400MHz BUS 200MHz */
  33         BUS_L1,         /* MEM 267MHz BUS 160MHz */
  34         BUS_L2,         /* MEM 133MHz BUS 133MHz */
  35 #if defined(CONFIG_S5PV310_INT_L3)
  36         BUS_L3,         /* MEM 66MHz BUS 66MHz */
  37 #endif
  38         BUS_LEVEL_END,
  39 };
  40
  41 enum cpufreq_lock_ID{
  42         DVFS_LOCK_ID_G2D,       /* G2D */
  43         DVFS_LOCK_ID_TV,        /* TV */
  44         DVFS_LOCK_ID_MFC,       /* MFC */
  45         DVFS_LOCK_ID_USB,       /* USB */
  46         DVFS_LOCK_ID_CAM,       /* CAM */
  47         DVFS_LOCK_ID_APP,       /* APP */
  48         DVFS_LOCK_ID_PM,
  49 #if CONFIG_TOUCHSCREEN_MXT224U1
  50         DVFS_LOCK_ID_TSP,   /*TSP*/
  51 #endif
  52         DVFS_LOCK_ID_TMU,       /* TMU */
  53         DVFS_LOCK_ID_END,
  54 };
  55
  56 extern int s5pv310_cpufreq_lock(unsigned int nId,
  57                         enum cpufreq_level_request cpufreq_level);
  58 extern void s5pv310_cpufreq_lock_free(unsigned int nId);
  59
  60 extern int s5pv310_busfreq_lock(unsigned int nId,
  61                         enum busfreq_level_request busfreq_level);
  62 extern void s5pv310_busfreq_lock_free(unsigned int nId);
  63
  64 int s5pv310_cpufreq_upper_limit(unsigned int nId, enum cpufreq_level_request cpufreq_level);
  65 void s5pv310_cpufreq_upper_limit_free(unsigned int nId);
  66
  67 extern void s5pv310_busfreq_force_notify(struct cpufreq_freqs *freq);
  68
  69 #endif /* __MACH_CPUFREQ_H */