13 files changed, 161 insertions, 12 deletions

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index cda2f1da2e1f..2a2f15213add 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 e5605c21ad38..650bf685dd99 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 000000000000..372c64669868
--- /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 6e9ec49d637f..e4a7133ea3b3 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 2d3d1ef23814..51920fc7fc52 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 0fb619c52588..f518270b3e83 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 ba766576e03e..545182d9faa6 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 1312ce2913a5..e1358ba51395 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 1a4efb5e435a..3f989896a36c 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 6ec2ee12272a..24228e9dd496 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 bf0c36b239f9..f6aef7687b8a 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 1ca6ef4c25b3..0fae3d6b76e8 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 a76ad3f0ca65..7eb7ba49d6bf 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"