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				@@ -23,3 +23,174 @@ 
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				 #include <linux/atomic.h> 
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				 #include "voltage.h" 
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				+ 
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				+/* Powerdomain basic power states */ 
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				+#define PWRDM_POWER_OFF		0x0 
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				+#define PWRDM_POWER_RET		0x1 
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				+#define PWRDM_POWER_INACTIVE	0x2 
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				+#define PWRDM_POWER_ON		0x3 
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				+ 
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				+#define PWRDM_MAX_PWRSTS	4 
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				+ 
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				+/* Powerdomain allowable state bitfields */ 
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				+#define PWRSTS_ON		(1 << PWRDM_POWER_ON) 
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				+#define PWRSTS_INACTIVE		(1 << PWRDM_POWER_INACTIVE) 
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				+#define PWRSTS_RET		(1 << PWRDM_POWER_RET) 
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				+#define PWRSTS_OFF		(1 << PWRDM_POWER_OFF) 
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				+ 
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				+#define PWRSTS_OFF_ON		(PWRSTS_OFF | PWRSTS_ON) 
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				+#define PWRSTS_OFF_RET		(PWRSTS_OFF | PWRSTS_RET) 
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				+#define PWRSTS_RET_ON		(PWRSTS_RET | PWRSTS_ON) 
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				+#define PWRSTS_OFF_RET_ON	(PWRSTS_OFF_RET | PWRSTS_ON) 
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				+ 
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				+ 
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				+/* Powerdomain flags */ 
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				+#define PWRDM_HAS_HDWR_SAR	(1 << 0) /* hardware save-and-restore support */ 
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				+#define PWRDM_HAS_MPU_QUIRK	(1 << 1) /* MPU pwr domain has MEM bank 0 bits 
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				+					  * in MEM bank 1 position. This is 
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				+					  * true for OMAP3430 
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				+					  */ 
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				+#define PWRDM_HAS_LOWPOWERSTATECHANGE	(1 << 2) /* 
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				+						  * support to transition from a 
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				+						  * sleep state to a lower sleep 
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				+						  * state without waking up the 
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				+						  * powerdomain 
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				+						  */ 
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				+ 
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				+/* 
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				+ * Number of memory banks that are power-controllable.	On OMAP4430, the 
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				+ * maximum is 5. 
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				+ */ 
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				+#define PWRDM_MAX_MEM_BANKS	5 
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				+ 
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				+/* 
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				+ * Maximum number of clockdomains that can be associated with a powerdomain. 
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				+ * PER powerdomain on AM33XX is the worst case 
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				+ */ 
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				+#define PWRDM_MAX_CLKDMS	11 
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				+ 
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				+/* XXX A completely arbitrary number. What is reasonable here? */ 
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				+#define PWRDM_TRANSITION_BAILOUT 100000 
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				+ 
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				+struct clockdomain; 
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				+struct powerdomain; 
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				+ 
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				+/** 
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				+ * struct powerdomain - OMAP powerdomain 
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				+ * @name: Powerdomain name 
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				+ * @voltdm: voltagedomain containing this powerdomain 
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				+ * @prcm_offs: the address offset from CM_BASE/PRM_BASE 
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				+ * @prcm_partition: (OMAP4 only) the PRCM partition ID containing @prcm_offs 
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				+ * @pwrsts: Possible powerdomain power states 
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				+ * @pwrsts_logic_ret: Possible logic power states when pwrdm in RETENTION 
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				+ * @flags: Powerdomain flags 
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				+ * @banks: Number of software-controllable memory banks in this powerdomain 
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				+ * @pwrsts_mem_ret: Possible memory bank pwrstates when pwrdm in RETENTION 
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				+ * @pwrsts_mem_on: Possible memory bank pwrstates when pwrdm in ON 
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				+ * @pwrdm_clkdms: Clockdomains in this powerdomain 
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				+ * @node: list_head linking all powerdomains 
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				+ * @voltdm_node: list_head linking all powerdomains in a voltagedomain 
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				+ * @pwrstctrl_offs: (AM33XX only) XXX_PWRSTCTRL reg offset from prcm_offs 
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				+ * @pwrstst_offs: (AM33XX only) XXX_PWRSTST reg offset from prcm_offs 
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				+ * @logicretstate_mask: (AM33XX only) mask for logic retention bitfield 
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				+ *	in @pwrstctrl_offs 
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				+ * @mem_on_mask: (AM33XX only) mask for mem on bitfield in @pwrstctrl_offs 
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				+ * @mem_ret_mask: (AM33XX only) mask for mem ret bitfield in @pwrstctrl_offs 
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				+ * @mem_pwrst_mask: (AM33XX only) mask for mem state bitfield in @pwrstst_offs 
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				+ * @mem_retst_mask: (AM33XX only) mask for mem retention state bitfield 
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				+ *	in @pwrstctrl_offs 
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				+ * @state: 
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				+ * @state_counter: 
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				+ * @timer: 
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				+ * @state_timer: 
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				+ * 
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				+ * @prcm_partition possible values are defined in mach-omap2/prcm44xx.h. 
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				+ */ 
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				+struct powerdomain { 
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				+	const char *name; 
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				+	union { 
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				+		const char *name; 
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				+		struct voltagedomain *ptr; 
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				+	} voltdm; 
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				+	const s16 prcm_offs; 
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				+	const u8 pwrsts; 
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				+	const u8 pwrsts_logic_ret; 
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				+	const u8 flags; 
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				+	const u8 banks; 
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				+	const u8 pwrsts_mem_ret[PWRDM_MAX_MEM_BANKS]; 
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				+	const u8 pwrsts_mem_on[PWRDM_MAX_MEM_BANKS]; 
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				+	const u8 prcm_partition; 
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				+	struct clockdomain *pwrdm_clkdms[PWRDM_MAX_CLKDMS]; 
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				+	struct list_head node; 
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				+	struct list_head voltdm_node; 
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				+	int state; 
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				+	unsigned state_counter[PWRDM_MAX_PWRSTS]; 
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				+	unsigned ret_logic_off_counter; 
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				+	unsigned ret_mem_off_counter[PWRDM_MAX_MEM_BANKS]; 
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				+ 
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				+	const u8 pwrstctrl_offs; 
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				+	const u8 pwrstst_offs; 
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				+	const u32 logicretstate_mask; 
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				+	const u32 mem_on_mask[PWRDM_MAX_MEM_BANKS]; 
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				+	const u32 mem_ret_mask[PWRDM_MAX_MEM_BANKS]; 
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				+	const u32 mem_pwrst_mask[PWRDM_MAX_MEM_BANKS]; 
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				+	const u32 mem_retst_mask[PWRDM_MAX_MEM_BANKS]; 
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				+ 
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				+#ifdef CONFIG_PM_DEBUG 
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				+	s64 timer; 
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				+	s64 state_timer[PWRDM_MAX_PWRSTS]; 
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				+#endif 
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				+}; 
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				+ 
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				+/** 
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				+ * struct pwrdm_ops - Arch specific function implementations 
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				+ * @pwrdm_set_next_pwrst: Set the target power state for a pd 
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				+ * @pwrdm_read_next_pwrst: Read the target power state set for a pd 
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				+ * @pwrdm_read_pwrst: Read the current power state of a pd 
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				+ * @pwrdm_read_prev_pwrst: Read the prev power state entered by the pd 
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				+ * @pwrdm_set_logic_retst: Set the logic state in RET for a pd 
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				+ * @pwrdm_set_mem_onst: Set the Memory state in ON for a pd 
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				+ * @pwrdm_set_mem_retst: Set the Memory state in RET for a pd 
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				+ * @pwrdm_read_logic_pwrst: Read the current logic state of a pd 
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				+ * @pwrdm_read_prev_logic_pwrst: Read the previous logic state entered by a pd 
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				+ * @pwrdm_read_logic_retst: Read the logic state in RET for a pd 
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				+ * @pwrdm_read_mem_pwrst: Read the current memory state of a pd 
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				+ * @pwrdm_read_prev_mem_pwrst: Read the previous memory state entered by a pd 
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				+ * @pwrdm_read_mem_retst: Read the memory state in RET for a pd 
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				+ * @pwrdm_clear_all_prev_pwrst: Clear all previous power states logged for a pd 
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				+ * @pwrdm_enable_hdwr_sar: Enable Hardware Save-Restore feature for the pd 
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				+ * @pwrdm_disable_hdwr_sar: Disable Hardware Save-Restore feature for a pd 
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				+ * @pwrdm_set_lowpwrstchange: Enable pd transitions from a shallow to deep sleep 
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				+ * @pwrdm_wait_transition: Wait for a pd state transition to complete 
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				+ */ 
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				+struct pwrdm_ops { 
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				+	int	(*pwrdm_set_next_pwrst)(struct powerdomain *pwrdm, u8 pwrst); 
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				+	int	(*pwrdm_read_next_pwrst)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_read_pwrst)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_read_prev_pwrst)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_set_logic_retst)(struct powerdomain *pwrdm, u8 pwrst); 
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				+	int	(*pwrdm_set_mem_onst)(struct powerdomain *pwrdm, u8 bank, u8 pwrst); 
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				+	int	(*pwrdm_set_mem_retst)(struct powerdomain *pwrdm, u8 bank, u8 pwrst); 
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				+	int	(*pwrdm_read_logic_pwrst)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_read_prev_logic_pwrst)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_read_logic_retst)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_read_mem_pwrst)(struct powerdomain *pwrdm, u8 bank); 
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				+	int	(*pwrdm_read_prev_mem_pwrst)(struct powerdomain *pwrdm, u8 bank); 
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				+	int	(*pwrdm_read_mem_retst)(struct powerdomain *pwrdm, u8 bank); 
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				+	int	(*pwrdm_clear_all_prev_pwrst)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_enable_hdwr_sar)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_disable_hdwr_sar)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_set_lowpwrstchange)(struct powerdomain *pwrdm); 
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				+	int	(*pwrdm_wait_transition)(struct powerdomain *pwrdm); 
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				+}; 
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				+ 
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				+int pwrdm_register_platform_funcs(struct pwrdm_ops *custom_funcs); 
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				+int pwrdm_register_pwrdms(struct powerdomain **pwrdm_list); 
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				+int pwrdm_complete_init(void); 
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				+ 
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				+struct powerdomain *pwrdm_lookup(const char *name); 
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				+ 
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				+int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm, void *user), 
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				+			void *user); 
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				+int pwrdm_for_each_nolock(int (*fn)(struct powerdomain *pwrdm, void *user), 
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				+			void *user); 
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