diff options
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r-- | arch/arm/mach-omap2/clock.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/clockdomain.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/clockdomain.h | 149 | ||||
-rw-r--r-- | arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/clockdomains44xx_data.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/cpuidle34xx.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/io.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/pm-debug.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/pm.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/pm24xx.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/pm34xx.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-omap2/powerdomain.c | 2 |
13 files changed, 161 insertions, 12 deletions
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index cda2f1da2e1..2a2f15213ad 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -24,7 +24,7 @@ #include <linux/bitops.h> #include <plat/clock.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include <plat/cpu.h> #include <plat/prcm.h> diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index e5605c21ad3..650bf685dd9 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -35,7 +35,7 @@ #include <plat/clock.h> #include <plat/powerdomain.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include <plat/prcm.h> /* clkdm_list contains all registered struct clockdomains */ diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h new file mode 100644 index 00000000000..372c6466986 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomain.h @@ -0,0 +1,149 @@ +/* + * arch/arm/plat-omap/include/mach/clockdomain.h + * + * OMAP2/3 clockdomain framework functions + * + * Copyright (C) 2008 Texas Instruments, Inc. + * Copyright (C) 2008-2010 Nokia Corporation + * + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_CLOCKDOMAIN_H +#define __ARCH_ARM_MACH_OMAP2_CLOCKDOMAIN_H + +#include <linux/init.h> + +#include <plat/powerdomain.h> +#include <plat/clock.h> +#include <plat/cpu.h> + +/* Clockdomain capability flags */ +#define CLKDM_CAN_FORCE_SLEEP (1 << 0) +#define CLKDM_CAN_FORCE_WAKEUP (1 << 1) +#define CLKDM_CAN_ENABLE_AUTO (1 << 2) +#define CLKDM_CAN_DISABLE_AUTO (1 << 3) + +#define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO) +#define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP) +#define CLKDM_CAN_HWSUP_SWSUP (CLKDM_CAN_SWSUP | CLKDM_CAN_HWSUP) + +/** + * struct clkdm_autodep - clkdm deps to add when entering/exiting hwsup mode + * @clkdm: clockdomain to add wkdep+sleepdep on - set name member only + * @omap_chip: OMAP chip types that this autodep is valid on + * + * A clockdomain that should have wkdeps and sleepdeps added when a + * clockdomain should stay active in hwsup mode; and conversely, + * removed when the clockdomain should be allowed to go inactive in + * hwsup mode. + * + * Autodeps are deprecated and should be removed after + * omap_hwmod-based fine-grained module idle control is added. + */ +struct clkdm_autodep { + union { + const char *name; + struct clockdomain *ptr; + } clkdm; + const struct omap_chip_id omap_chip; +}; + +/** + * struct clkdm_dep - encode dependencies between clockdomains + * @clkdm_name: clockdomain name + * @clkdm: pointer to the struct clockdomain of @clkdm_name + * @omap_chip: OMAP chip types that this dependency is valid on + * @wkdep_usecount: Number of wakeup dependencies causing this clkdm to wake + * @sleepdep_usecount: Number of sleep deps that could prevent clkdm from idle + * + * Statically defined. @clkdm is resolved from @clkdm_name at runtime and + * should not be pre-initialized. + * + * XXX Should also include hardware (fixed) dependencies. + */ +struct clkdm_dep { + const char *clkdm_name; + struct clockdomain *clkdm; + atomic_t wkdep_usecount; + atomic_t sleepdep_usecount; + const struct omap_chip_id omap_chip; +}; + +/** + * struct clockdomain - OMAP clockdomain + * @name: clockdomain name + * @pwrdm: powerdomain containing this clockdomain + * @clktrctrl_reg: CLKSTCTRL reg for the given clock domain + * @clktrctrl_mask: CLKTRCTRL/AUTOSTATE field mask in CM_CLKSTCTRL reg + * @flags: Clockdomain capability flags + * @dep_bit: Bit shift of this clockdomain's PM_WKDEP/CM_SLEEPDEP bit + * @prcm_partition: (OMAP4 only) PRCM partition ID for this clkdm's registers + * @cm_inst: (OMAP4 only) CM instance register offset + * @clkdm_offs: (OMAP4 only) CM clockdomain register offset + * @wkdep_srcs: Clockdomains that can be told to wake this powerdomain up + * @sleepdep_srcs: Clockdomains that can be told to keep this clkdm from inact + * @omap_chip: OMAP chip types that this clockdomain is valid on + * @usecount: Usecount tracking + * @node: list_head to link all clockdomains together + * + * @prcm_partition should be a macro from mach-omap2/prcm44xx.h (OMAP4 only) + * @cm_inst should be a macro ending in _INST from the OMAP4 CM instance + * definitions (OMAP4 only) + * @clkdm_offs should be a macro ending in _CDOFFS from the OMAP4 CM instance + * definitions (OMAP4 only) + */ +struct clockdomain { + const char *name; + union { + const char *name; + struct powerdomain *ptr; + } pwrdm; +#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) + const u16 clktrctrl_mask; +#endif + const u8 flags; + const u8 dep_bit; + const u8 prcm_partition; + const s16 cm_inst; + const u16 clkdm_offs; + struct clkdm_dep *wkdep_srcs; + struct clkdm_dep *sleepdep_srcs; + const struct omap_chip_id omap_chip; + atomic_t usecount; + struct list_head node; +}; + +void clkdm_init(struct clockdomain **clkdms, struct clkdm_autodep *autodeps); +struct clockdomain *clkdm_lookup(const char *name); + +int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user), + void *user); +struct powerdomain *clkdm_get_pwrdm(struct clockdomain *clkdm); + +int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_clear_all_wkdeps(struct clockdomain *clkdm); +int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2); +int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm); + +void omap2_clkdm_allow_idle(struct clockdomain *clkdm); +void omap2_clkdm_deny_idle(struct clockdomain *clkdm); + +int omap2_clkdm_wakeup(struct clockdomain *clkdm); +int omap2_clkdm_sleep(struct clockdomain *clkdm); + +int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk); +int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk); + +extern void __init omap2_clockdomains_init(void); +extern void __init omap44xx_clockdomains_init(void); + +#endif diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c index 6e9ec49d637..e4a7133ea3b 100644 --- a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c +++ b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c @@ -35,7 +35,7 @@ #include <linux/kernel.h> #include <linux/io.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include "prm2xxx_3xxx.h" #include "cm2xxx_3xxx.h" #include "cm-regbits-24xx.h" diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c index 2d3d1ef2381..51920fc7fc5 100644 --- a/arch/arm/mach-omap2/clockdomains44xx_data.c +++ b/arch/arm/mach-omap2/clockdomains44xx_data.c @@ -26,7 +26,7 @@ #include <linux/kernel.h> #include <linux/io.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include "cm1_44xx.h" #include "cm2_44xx.h" diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index 0fb619c5258..f518270b3e8 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -28,7 +28,7 @@ #include <plat/prcm.h> #include <plat/irqs.h> #include <plat/powerdomain.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include <plat/serial.h> #include "pm.h" diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index ba766576e03..545182d9faa 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -41,7 +41,7 @@ #include <plat/omap-pm.h> #include <plat/powerdomain.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include <plat/omap_hwmod.h> #include <plat/multi.h> diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 1312ce2913a..e1358ba5139 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -139,7 +139,7 @@ #include <plat/common.h> #include <plat/cpu.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include <plat/powerdomain.h> #include <plat/clock.h> #include <plat/omap_hwmod.h> diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c index 1a4efb5e435..3f989896a36 100644 --- a/arch/arm/mach-omap2/pm-debug.c +++ b/arch/arm/mach-omap2/pm-debug.c @@ -30,7 +30,7 @@ #include <plat/clock.h> #include <plat/board.h> #include <plat/powerdomain.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include <plat/dmtimer.h> #include "cm2xxx_3xxx.h" diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c index 6ec2ee12272..24228e9dd49 100644 --- a/arch/arm/mach-omap2/pm.c +++ b/arch/arm/mach-omap2/pm.c @@ -19,7 +19,7 @@ #include <plat/common.h> #include <plat/powerdomain.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" static struct omap_device_pm_latency *pm_lats; diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c index bf0c36b239f..f6aef7687b8 100644 --- a/arch/arm/mach-omap2/pm24xx.c +++ b/arch/arm/mach-omap2/pm24xx.c @@ -51,7 +51,7 @@ #include "control.h" #include <plat/powerdomain.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #ifdef CONFIG_SUSPEND static suspend_state_t suspend_state = PM_SUSPEND_ON; diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 1ca6ef4c25b..0fae3d6b76e 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -31,7 +31,7 @@ #include <linux/console.h> #include <plat/sram.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include <plat/powerdomain.h> #include <plat/serial.h> #include <plat/sdrc.h> diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index a76ad3f0ca6..7eb7ba49d6b 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -27,7 +27,7 @@ #include <plat/cpu.h> #include <plat/powerdomain.h> -#include <plat/clockdomain.h> +#include "clockdomain.h" #include <plat/prcm.h> #include "pm.h" |