Define the following architecture specific funtions for omap2/3
.clkdm_add_wkdep
.clkdm_del_wkdep
.clkdm_read_wkdep
.clkdm_clear_all_wkdeps
.clkdm_add_sleepdep
.clkdm_del_sleepdep
.clkdm_read_sleepdep
.clkdm_clear_all_sleepdeps
Convert the platform-independent framework to call these functions.
With this also move the clkdm lookups for all wkdep_srcs and
sleepdep_srcs at clkdm_init.
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
---
arch/arm/mach-omap2/Makefile | 2 +
arch/arm/mach-omap2/clockdomain.c | 80 ++++++---------
arch/arm/mach-omap2/clockdomain.h | 2 +
arch/arm/mach-omap2/clockdomain2xxx_3xxx.c | 113 ++++++++++++++++++++++
arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c | 2 +-
5 files changed, 150 insertions(+), 49 deletions(-)
create mode 100644 arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 4ab82f6..d28db0a 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -102,8 +102,10 @@ obj-$(CONFIG_ARCH_OMAP4) += $(powerdomain-common) \
# PRCM clockdomain control
obj-$(CONFIG_ARCH_OMAP2) += clockdomain.o \
+ clockdomain2xxx_3xxx.o \
clockdomains2xxx_3xxx_data.o
obj-$(CONFIG_ARCH_OMAP3) += clockdomain.o \
+ clockdomain2xxx_3xxx.o \
clockdomains2xxx_3xxx_data.o
obj-$(CONFIG_ARCH_OMAP4) += clockdomain.o \
clockdomains44xx_data.o
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index 3e40184..c32480c 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -308,6 +308,7 @@ void clkdm_init(struct clockdomain **clkdms,
struct clockdomain **c = NULL;
struct clockdomain *clkdm;
struct clkdm_autodep *autodep = NULL;
+ struct clkdm_dep *cd;
if (!custom_funcs)
WARN(1, "No custom clkdm functions registered\n");
@@ -333,7 +334,18 @@ void clkdm_init(struct clockdomain **clkdms,
else if (clkdm->flags & CLKDM_CAN_DISABLE_AUTO)
omap2_clkdm_deny_idle(clkdm);
+ for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) {
+ if (!omap_chip_is(cd->omap_chip))
+ continue;
+ cd->clkdm = _clkdm_lookup(cd->clkdm_name);
+ }
clkdm_clear_all_wkdeps(clkdm);
+
+ for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) {
+ if (!omap_chip_is(cd->omap_chip))
+ continue;
+ cd->clkdm = _clkdm_lookup(cd->clkdm_name);
+ }
clkdm_clear_all_sleepdeps(clkdm);
}
}
@@ -445,8 +457,8 @@ int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
pr_debug("clockdomain: hardware will wake up %s when %s wakes "
"up\n", clkdm1->name, clkdm2->name);
- omap2_prm_set_mod_reg_bits((1 << clkdm2->dep_bit),
- clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP);
+ if (arch_clkdm && arch_clkdm->clkdm_add_wkdep)
+ arch_clkdm->clkdm_add_wkdep(clkdm1, clkdm2);
}
return 0;
@@ -480,8 +492,8 @@ int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
pr_debug("clockdomain: hardware will no longer wake up %s "
"after %s wakes up\n", clkdm1->name, clkdm2->name);
- omap2_prm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
- clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP);
+ if (arch_clkdm && arch_clkdm->clkdm_del_wkdep)
+ arch_clkdm->clkdm_del_wkdep(clkdm1, clkdm2);
}
return 0;
@@ -516,8 +528,10 @@ int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
}
/* XXX It's faster to return the atomic wkdep_usecount */
- return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP,
- (1 << clkdm2->dep_bit));
+ if (arch_clkdm && arch_clkdm->clkdm_read_wkdep)
+ return arch_clkdm->clkdm_read_wkdep(clkdm1, clkdm2);
+
+ return -EINVAL;
}
/**
@@ -532,25 +546,11 @@ int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
*/
int clkdm_clear_all_wkdeps(struct clockdomain *clkdm)
{
- struct clkdm_dep *cd;
- u32 mask = 0;
-
if (!clkdm)
return -EINVAL;
- for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) {
- if (!omap_chip_is(cd->omap_chip))
- continue;
-
- if (!cd->clkdm && cd->clkdm_name)
- cd->clkdm = _clkdm_lookup(cd->clkdm_name);
-
- /* PRM accesses are slow, so minimize them */
- mask |= 1 << cd->clkdm->dep_bit;
- atomic_set(&cd->wkdep_usecount, 0);
- }
-
- omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, PM_WKDEP);
+ if (arch_clkdm && arch_clkdm->clkdm_clear_all_wkdeps)
+ arch_clkdm->clkdm_clear_all_wkdeps(clkdm);
return 0;
}
@@ -589,9 +589,8 @@ int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
pr_debug("clockdomain: will prevent %s from sleeping if %s "
"is active\n", clkdm1->name, clkdm2->name);
- omap2_cm_set_mod_reg_bits((1 << clkdm2->dep_bit),
- clkdm1->pwrdm.ptr->prcm_offs,
- OMAP3430_CM_SLEEPDEP);
+ if (arch_clkdm && arch_clkdm->clkdm_add_sleepdep)
+ arch_clkdm->clkdm_add_sleepdep(clkdm1, clkdm2);
}
return 0;
@@ -632,9 +631,8 @@ int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
"sleeping if %s is active\n", clkdm1->name,
clkdm2->name);
- omap2_cm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
- clkdm1->pwrdm.ptr->prcm_offs,
- OMAP3430_CM_SLEEPDEP);
+ if (arch_clkdm && arch_clkdm->clkdm_del_sleepdep)
+ arch_clkdm->clkdm_del_sleepdep(clkdm1, clkdm2);
}
return 0;
@@ -675,9 +673,10 @@ int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
}
/* XXX It's faster to return the atomic sleepdep_usecount */
- return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs,
- OMAP3430_CM_SLEEPDEP,
- (1 << clkdm2->dep_bit));
+ if (arch_clkdm && arch_clkdm->clkdm_read_sleepdep)
+ return arch_clkdm->clkdm_read_sleepdep(clkdm1, clkdm2);
+
+ return -EINVAL;
}
/**
@@ -692,29 +691,14 @@ int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
*/
int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm)
{
- struct clkdm_dep *cd;
- u32 mask = 0;
-
if (!cpu_is_omap34xx())
return -EINVAL;
if (!clkdm)
return -EINVAL;
- for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) {
- if (!omap_chip_is(cd->omap_chip))
- continue;
-
- if (!cd->clkdm && cd->clkdm_name)
- cd->clkdm = _clkdm_lookup(cd->clkdm_name);
-
- /* PRM accesses are slow, so minimize them */
- mask |= 1 << cd->clkdm->dep_bit;
- atomic_set(&cd->sleepdep_usecount, 0);
- }
-
- omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs,
- OMAP3430_CM_SLEEPDEP);
+ if (arch_clkdm && arch_clkdm->clkdm_clear_all_sleepdeps)
+ arch_clkdm->clkdm_clear_all_sleepdeps(clkdm);
return 0;
}
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 346efa2..a9cda27 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -181,4 +181,6 @@ 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);
+extern struct clkdm_ops omap2_clkdm_operations;
+
#endif
diff --git a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
new file mode 100644
index 0000000..a7303bd
--- /dev/null
+++ b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
@@ -0,0 +1,113 @@
+/*
+ * OMAP2 and OMAP3 clockdomain control
+ *
+ * Copyright (C) 2008-2010 Texas Instruments, Inc.
+ * Copyright (C) 2008-2010 Nokia Corporation
+ *
+ * Derived from mach-omap2/clockdomain.c written by Paul Walmsley
+ * Rajendra Nayak <rnayak@xxxxxx>
+ *
+ * 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.
+ */
+
+#include <linux/types.h>
+#include <plat/prcm.h>
+#include "prm.h"
+#include "prm2xxx_3xxx.h"
+#include "cm.h"
+#include "cm2xxx_3xxx.h"
+#include "cm-regbits-24xx.h"
+#include "cm-regbits-34xx.h"
+#include "clockdomain.h"
+
+static void omap2_clkdm_add_wkdep(struct clockdomain *clkdm1,
+ struct clockdomain *clkdm2)
+{
+ omap2_prm_set_mod_reg_bits((1 << clkdm2->dep_bit),
+ clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP);
+}
+
+static void omap2_clkdm_del_wkdep(struct clockdomain *clkdm1,
+ struct clockdomain *clkdm2)
+{
+ omap2_prm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
+ clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP);
+}
+
+static int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1,
+ struct clockdomain *clkdm2)
+{
+ return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs,
+ PM_WKDEP, (1 << clkdm2->dep_bit));
+}
+
+static void omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm)
+{
+ struct clkdm_dep *cd;
+ u32 mask = 0;
+
+ for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) {
+ if (!omap_chip_is(cd->omap_chip))
+ continue;
+
+ /* PRM accesses are slow, so minimize them */
+ mask |= 1 << cd->clkdm->dep_bit;
+ atomic_set(&cd->wkdep_usecount, 0);
+ }
+
+ omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs,
+ PM_WKDEP);
+}
+
+static void omap2_clkdm_add_sleepdep(struct clockdomain *clkdm1,
+ struct clockdomain *clkdm2)
+{
+ omap2_cm_set_mod_reg_bits((1 << clkdm2->dep_bit),
+ clkdm1->pwrdm.ptr->prcm_offs,
+ OMAP3430_CM_SLEEPDEP);
+}
+
+static void omap2_clkdm_del_sleepdep(struct clockdomain *clkdm1,
+ struct clockdomain *clkdm2)
+{
+ omap2_cm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
+ clkdm1->pwrdm.ptr->prcm_offs,
+ OMAP3430_CM_SLEEPDEP);
+}
+
+static int omap2_clkdm_read_sleepdep(struct clockdomain *clkdm1,
+ struct clockdomain *clkdm2)
+{
+ return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs,
+ OMAP3430_CM_SLEEPDEP, (1 << clkdm2->dep_bit));
+}
+
+static void omap2_clkdm_clear_all_sleepdeps(struct clockdomain *clkdm)
+{
+ struct clkdm_dep *cd;
+ u32 mask = 0;
+
+ for (cd = clkdm->sleepdep_srcs; cd && cd->clkdm_name; cd++) {
+ if (!omap_chip_is(cd->omap_chip))
+ continue;
+
+ /* PRM accesses are slow, so minimize them */
+ mask |= 1 << cd->clkdm->dep_bit;
+ atomic_set(&cd->sleepdep_usecount, 0);
+ }
+ omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs,
+ OMAP3430_CM_SLEEPDEP);
+}
+
+struct clkdm_ops omap2_clkdm_operations = {
+ .clkdm_add_wkdep = omap2_clkdm_add_wkdep,
+ .clkdm_del_wkdep = omap2_clkdm_del_wkdep,
+ .clkdm_read_wkdep = omap2_clkdm_read_wkdep,
+ .clkdm_clear_all_wkdeps = omap2_clkdm_clear_all_wkdeps,
+ .clkdm_add_sleepdep = omap2_clkdm_add_sleepdep,
+ .clkdm_del_sleepdep = omap2_clkdm_del_sleepdep,
+ .clkdm_read_sleepdep = omap2_clkdm_read_sleepdep,
+ .clkdm_clear_all_sleepdeps = omap2_clkdm_clear_all_sleepdeps,
+};
diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
index 8cab07a..ba0bbbd 100644
--- a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
+++ b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
@@ -856,5 +856,5 @@ static struct clockdomain *clockdomains_omap2[] __initdata = {
void __init omap2_clockdomains_init(void)
{
- clkdm_init(clockdomains_omap2, clkdm_autodeps, NULL);
+ clkdm_init(clockdomains_omap2, clkdm_autodeps, &omap2_clkdm_operations);
}
--
1.7.0.4
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