/*
* OMAP2/3 powerdomain control
*
- * Copyright (C) 2007-8 Texas Instruments, Inc.
- * Copyright (C) 2007-8 Nokia Corporation
+ * Copyright (C) 2007-2008 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009 Nokia Corporation
*
* Written by Paul Walmsley
*
#define PWRDM_MAX_PWRSTS 4
/* Powerdomain allowable state bitfields */
+#define PWRSTS_ON (1 << PWRDM_POWER_ON)
#define PWRSTS_OFF_ON ((1 << PWRDM_POWER_OFF) | \
(1 << PWRDM_POWER_ON))
#define PWRSTS_OFF_RET ((1 << PWRDM_POWER_OFF) | \
(1 << PWRDM_POWER_RET))
+#define PWRSTS_RET_ON ((1 << PWRDM_POWER_RET) | \
+ (1 << PWRDM_POWER_ON))
+
#define PWRSTS_OFF_RET_ON (PWRSTS_OFF_RET | (1 << PWRDM_POWER_ON))
* in MEM bank 1 position. This is
* true for OMAP3430
*/
+#define PWRDM_HAS_LOWPOWERSTATECHANGE (1 << 2) /*
+ * support to transition from a
+ * sleep state to a lower sleep
+ * state without waking up the
+ * powerdomain
+ */
/*
- * Number of memory banks that are power-controllable. On OMAP3430, the
- * maximum is 4.
+ * Number of memory banks that are power-controllable. On OMAP4430, the
+ * maximum is 5.
*/
-#define PWRDM_MAX_MEM_BANKS 4
+#define PWRDM_MAX_MEM_BANKS 5
/*
* Maximum number of clockdomains that can be associated with a powerdomain.
- * CORE powerdomain on OMAP3 is the worst case
+ * CORE powerdomain on OMAP4 is the worst case
*/
-#define PWRDM_MAX_CLKDMS 4
+#define PWRDM_MAX_CLKDMS 9
/* XXX A completely arbitrary number. What is reasonable here? */
#define PWRDM_TRANSITION_BAILOUT 100000
struct clockdomain;
struct powerdomain;
-/* Encodes dependencies between powerdomains - statically defined */
-struct pwrdm_dep {
-
- /* Powerdomain name */
- const char *pwrdm_name;
-
- /* Powerdomain pointer - resolved by the powerdomain code */
- struct powerdomain *pwrdm;
-
- /* Flags to mark OMAP chip restrictions, etc. */
- const struct omap_chip_id omap_chip;
-
-};
-
+/**
+ * struct powerdomain - OMAP powerdomain
+ * @name: Powerdomain name
+ * @omap_chip: represents the OMAP chip types containing this pwrdm
+ * @prcm_offs: the address offset from CM_BASE/PRM_BASE
+ * @pwrsts: Possible powerdomain power states
+ * @pwrsts_logic_ret: Possible logic power states when pwrdm in RETENTION
+ * @flags: Powerdomain flags
+ * @banks: Number of software-controllable memory banks in this powerdomain
+ * @pwrsts_mem_ret: Possible memory bank pwrstates when pwrdm in RETENTION
+ * @pwrsts_mem_on: Possible memory bank pwrstates when pwrdm in ON
+ * @pwrdm_clkdms: Clockdomains in this powerdomain
+ * @node: list_head linking all powerdomains
+ * @state:
+ * @state_counter:
+ * @timer:
+ * @state_timer:
+ */
struct powerdomain {
-
- /* Powerdomain name */
const char *name;
-
- /* the address offset from CM_BASE/PRM_BASE */
- const s16 prcm_offs;
-
- /* Used to represent the OMAP chip types containing this pwrdm */
const struct omap_chip_id omap_chip;
-
- /* Powerdomains that can be told to wake this powerdomain up */
- struct pwrdm_dep *wkdep_srcs;
-
- /* Powerdomains that can be told to keep this pwrdm from inactivity */
- struct pwrdm_dep *sleepdep_srcs;
-
- /* Bit shift of this powerdomain's PM_WKDEP/CM_SLEEPDEP bit */
- const u8 dep_bit;
-
- /* Possible powerdomain power states */
+ const s16 prcm_offs;
const u8 pwrsts;
-
- /* Possible logic power states when pwrdm in RETENTION */
const u8 pwrsts_logic_ret;
-
- /* Powerdomain flags */
const u8 flags;
-
- /* Number of software-controllable memory banks in this powerdomain */
const u8 banks;
-
- /* Possible memory bank pwrstates when pwrdm in RETENTION */
const u8 pwrsts_mem_ret[PWRDM_MAX_MEM_BANKS];
-
- /* Possible memory bank pwrstates when pwrdm is ON */
const u8 pwrsts_mem_on[PWRDM_MAX_MEM_BANKS];
-
- /* Clockdomains in this powerdomain */
struct clockdomain *pwrdm_clkdms[PWRDM_MAX_CLKDMS];
-
struct list_head node;
-
int state;
unsigned state_counter[PWRDM_MAX_PWRSTS];
+ unsigned ret_logic_off_counter;
+ unsigned ret_mem_off_counter[PWRDM_MAX_MEM_BANKS];
#ifdef CONFIG_PM_DEBUG
s64 timer;
void pwrdm_init(struct powerdomain **pwrdm_list);
-int pwrdm_register(struct powerdomain *pwrdm);
-int pwrdm_unregister(struct powerdomain *pwrdm);
struct powerdomain *pwrdm_lookup(const char *name);
int pwrdm_for_each(int (*fn)(struct powerdomain *pwrdm, void *user),
int (*fn)(struct powerdomain *pwrdm,
struct clockdomain *clkdm));
-int pwrdm_add_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_del_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_read_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_add_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_del_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_read_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-
int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm);
int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst);
int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm);
int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm);
+int pwrdm_read_logic_retst(struct powerdomain *pwrdm);
int pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank);
int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank);
+int pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank);
int pwrdm_enable_hdwr_sar(struct powerdomain *pwrdm);
int pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm);
git.openpandora.org / pandora-kernel.git / blobdiff