pm.h 3.7 KB

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  1. /*
  2. * OMAP2/3 Power Management Routines
  3. *
  4. * Copyright (C) 2008 Nokia Corporation
  5. * Jouni Hogander
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License version 2 as
  9. * published by the Free Software Foundation.
  10. */
  11. #ifndef __ARCH_ARM_MACH_OMAP2_PM_H
  12. #define __ARCH_ARM_MACH_OMAP2_PM_H
  13. #include <linux/err.h>
  14. #include "powerdomain.h"
  15. extern void *omap3_secure_ram_storage;
  16. extern void omap3_pm_off_mode_enable(int);
  17. extern void omap_sram_idle(void);
  18. extern int omap3_can_sleep(void);
  19. extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
  20. extern int omap3_idle_init(void);
  21. #if defined(CONFIG_PM_OPP)
  22. extern int omap3_opp_init(void);
  23. extern int omap4_opp_init(void);
  24. #else
  25. static inline int omap3_opp_init(void)
  26. {
  27. return -EINVAL;
  28. }
  29. static inline int omap4_opp_init(void)
  30. {
  31. return -EINVAL;
  32. }
  33. #endif
  34. /*
  35. * cpuidle mach specific parameters
  36. *
  37. * The board code can override the default C-states definition using
  38. * omap3_pm_init_cpuidle
  39. */
  40. struct cpuidle_params {
  41. u32 exit_latency; /* exit_latency = sleep + wake-up latencies */
  42. u32 target_residency;
  43. u8 valid; /* validates the C-state */
  44. };
  45. #if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE)
  46. extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params);
  47. #else
  48. static
  49. inline void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params)
  50. {
  51. }
  52. #endif
  53. extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
  54. extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
  55. #ifdef CONFIG_PM_DEBUG
  56. extern void omap2_pm_dump(int mode, int resume, unsigned int us);
  57. extern int omap2_pm_debug;
  58. extern u32 enable_off_mode;
  59. extern u32 sleep_while_idle;
  60. #else
  61. #define omap2_pm_dump(mode, resume, us) do {} while (0);
  62. #define omap2_pm_debug 0
  63. #define enable_off_mode 0
  64. #define sleep_while_idle 0
  65. #endif
  66. #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
  67. extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
  68. extern int pm_dbg_regset_save(int reg_set);
  69. extern int pm_dbg_regset_init(int reg_set);
  70. #else
  71. #define pm_dbg_update_time(pwrdm, prev) do {} while (0);
  72. #define pm_dbg_regset_save(reg_set) do {} while (0);
  73. #define pm_dbg_regset_init(reg_set) do {} while (0);
  74. #endif /* CONFIG_PM_DEBUG */
  75. extern void omap24xx_idle_loop_suspend(void);
  76. extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl,
  77. void __iomem *sdrc_power);
  78. extern void omap34xx_cpu_suspend(u32 *addr, int save_state);
  79. extern int save_secure_ram_context(u32 *addr);
  80. extern void omap3_save_scratchpad_contents(void);
  81. extern unsigned int omap24xx_idle_loop_suspend_sz;
  82. extern unsigned int save_secure_ram_context_sz;
  83. extern unsigned int omap24xx_cpu_suspend_sz;
  84. extern unsigned int omap34xx_cpu_suspend_sz;
  85. #define PM_RTA_ERRATUM_i608 (1 << 0)
  86. #define PM_SDRC_WAKEUP_ERRATUM_i583 (1 << 1)
  87. #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  88. extern u16 pm34xx_errata;
  89. #define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id))
  90. extern void enable_omap3630_toggle_l2_on_restore(void);
  91. #else
  92. #define IS_PM34XX_ERRATUM(id) 0
  93. static inline void enable_omap3630_toggle_l2_on_restore(void) { }
  94. #endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
  95. #ifdef CONFIG_OMAP_SMARTREFLEX
  96. extern int omap_devinit_smartreflex(void);
  97. extern void omap_enable_smartreflex_on_init(void);
  98. #else
  99. static inline int omap_devinit_smartreflex(void)
  100. {
  101. return -EINVAL;
  102. }
  103. static inline void omap_enable_smartreflex_on_init(void) {}
  104. #endif
  105. #ifdef CONFIG_TWL4030_CORE
  106. extern int omap3_twl_init(void);
  107. extern int omap4_twl_init(void);
  108. extern int omap3_twl_set_sr_bit(bool enable);
  109. #else
  110. static inline int omap3_twl_init(void)
  111. {
  112. return -EINVAL;
  113. }
  114. static inline int omap4_twl_init(void)
  115. {
  116. return -EINVAL;
  117. }
  118. #endif
  119. #endif