[PATCH v2 3/5] OMAP: clockdomain: Arch specific funcs for sleep/wakeup of clkdm
Rajendra Nayak
rnayak at ti.com
Tue Jan 25 06:51:46 EST 2011
Define the following architecture specific funtions for omap2/3/4
.clkdm_sleep
.clkdm_wakeup
Convert the platform-independent framework to call these functions.
Also rename the api's by removing the omap2_ preamble.
Hence call omap2_clkdm_wakeup as clkdm_wakeup and
omap2_clkdm_sleep as clkdm_sleep.
Signed-off-by: Rajendra Nayak <rnayak at ti.com>
Signed-off-by: Paul Walmsley <paul at pwsan.com>
---
arch/arm/mach-omap2/Makefile | 1 +
arch/arm/mach-omap2/clockdomain.c | 64 ++++++--------------------
arch/arm/mach-omap2/clockdomain.h | 5 +-
arch/arm/mach-omap2/clockdomain2xxx_3xxx.c | 35 +++++++++++++++
arch/arm/mach-omap2/clockdomain44xx.c | 35 +++++++++++++++
arch/arm/mach-omap2/clockdomains44xx_data.c | 2 +-
arch/arm/mach-omap2/pm.c | 4 +-
arch/arm/mach-omap2/pm24xx.c | 6 +-
arch/arm/mach-omap2/pm34xx.c | 2 +-
9 files changed, 96 insertions(+), 58 deletions(-)
create mode 100644 arch/arm/mach-omap2/clockdomain44xx.c
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 6b2824d..72f2891 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_ARCH_OMAP3) += clockdomain.o \
clockdomain2xxx_3xxx.o \
clockdomains2xxx_3xxx_data.o
obj-$(CONFIG_ARCH_OMAP4) += clockdomain.o \
+ clockdomain44xx.o \
clockdomains44xx_data.o
# Clock framework
obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) clock2xxx.o \
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index 1c461ed..9beccc7 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -330,7 +330,7 @@ void clkdm_init(struct clockdomain **clkdms,
*/
list_for_each_entry(clkdm, &clkdm_list, node) {
if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
- omap2_clkdm_wakeup(clkdm);
+ clkdm_wakeup(clkdm);
else if (clkdm->flags & CLKDM_CAN_DISABLE_AUTO)
omap2_clkdm_deny_idle(clkdm);
@@ -724,7 +724,7 @@ int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm)
}
/**
- * omap2_clkdm_sleep - force clockdomain sleep transition
+ * clkdm_sleep - force clockdomain sleep transition
* @clkdm: struct clockdomain *
*
* Instruct the CM to force a sleep transition on the specified
@@ -732,7 +732,7 @@ int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm)
* clockdomain does not support software-initiated sleep; 0 upon
* success.
*/
-int omap2_clkdm_sleep(struct clockdomain *clkdm)
+int clkdm_sleep(struct clockdomain *clkdm)
{
if (!clkdm)
return -EINVAL;
@@ -743,33 +743,16 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm)
return -EINVAL;
}
- pr_debug("clockdomain: forcing sleep on %s\n", clkdm->name);
-
- if (cpu_is_omap24xx()) {
-
- omap2_cm_set_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
- clkdm->pwrdm.ptr->prcm_offs, OMAP2_PM_PWSTCTRL);
-
- } else if (cpu_is_omap34xx()) {
-
- omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs,
- clkdm->clktrctrl_mask);
-
- } else if (cpu_is_omap44xx()) {
-
- omap4_cminst_clkdm_force_sleep(clkdm->prcm_partition,
- clkdm->cm_inst,
- clkdm->clkdm_offs);
+ if (!arch_clkdm || !arch_clkdm->clkdm_sleep)
+ return -EINVAL;
- } else {
- BUG();
- };
+ pr_debug("clockdomain: forcing sleep on %s\n", clkdm->name);
- return 0;
+ return arch_clkdm->clkdm_sleep(clkdm);
}
/**
- * omap2_clkdm_wakeup - force clockdomain wakeup transition
+ * clkdm_wakeup - force clockdomain wakeup transition
* @clkdm: struct clockdomain *
*
* Instruct the CM to force a wakeup transition on the specified
@@ -777,7 +760,7 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm)
* clockdomain does not support software-controlled wakeup; 0 upon
* success.
*/
-int omap2_clkdm_wakeup(struct clockdomain *clkdm)
+int clkdm_wakeup(struct clockdomain *clkdm)
{
if (!clkdm)
return -EINVAL;
@@ -788,29 +771,12 @@ int omap2_clkdm_wakeup(struct clockdomain *clkdm)
return -EINVAL;
}
- pr_debug("clockdomain: forcing wakeup on %s\n", clkdm->name);
-
- if (cpu_is_omap24xx()) {
-
- omap2_cm_clear_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
- clkdm->pwrdm.ptr->prcm_offs, OMAP2_PM_PWSTCTRL);
-
- } else if (cpu_is_omap34xx()) {
-
- omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs,
- clkdm->clktrctrl_mask);
-
- } else if (cpu_is_omap44xx()) {
-
- omap4_cminst_clkdm_force_wakeup(clkdm->prcm_partition,
- clkdm->cm_inst,
- clkdm->clkdm_offs);
+ if (!arch_clkdm || !arch_clkdm->clkdm_wakeup)
+ return -EINVAL;
- } else {
- BUG();
- };
+ pr_debug("clockdomain: forcing wakeup on %s\n", clkdm->name);
- return 0;
+ return arch_clkdm->clkdm_wakeup(clkdm);
}
/**
@@ -951,7 +917,7 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
_clkdm_add_autodeps(clkdm);
_enable_hwsup(clkdm);
} else {
- omap2_clkdm_wakeup(clkdm);
+ clkdm_wakeup(clkdm);
}
pwrdm_wait_transition(clkdm->pwrdm.ptr);
@@ -1023,7 +989,7 @@ int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
_clkdm_del_autodeps(clkdm);
_enable_hwsup(clkdm);
} else {
- omap2_clkdm_sleep(clkdm);
+ clkdm_sleep(clkdm);
}
pwrdm_clkdm_state_switch(clkdm);
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 90b6d6a..7a5cb5c 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -170,8 +170,8 @@ 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 clkdm_wakeup(struct clockdomain *clkdm);
+int 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);
@@ -182,5 +182,6 @@ extern void __init omap44xx_clockdomains_init(void);
extern struct clkdm_ops omap2_clkdm_operations;
extern struct clkdm_ops omap3_clkdm_operations;
+extern struct clkdm_ops omap4_clkdm_operations;
#endif
diff --git a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
index 58b0626..2b90e91 100644
--- a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
+++ b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
@@ -20,6 +20,7 @@
#include "cm2xxx_3xxx.h"
#include "cm-regbits-24xx.h"
#include "cm-regbits-34xx.h"
+#include "prm-regbits-24xx.h"
#include "clockdomain.h"
static int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1,
@@ -107,11 +108,43 @@ static int omap3_clkdm_clear_all_sleepdeps(struct clockdomain *clkdm)
return 0;
}
+static int omap2_clkdm_sleep(struct clockdomain *clkdm)
+{
+ omap2_cm_set_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
+ clkdm->pwrdm.ptr->prcm_offs,
+ OMAP2_PM_PWSTCTRL);
+ return 0;
+}
+
+static int omap2_clkdm_wakeup(struct clockdomain *clkdm)
+{
+ omap2_cm_clear_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
+ clkdm->pwrdm.ptr->prcm_offs,
+ OMAP2_PM_PWSTCTRL);
+ return 0;
+}
+
+static int omap3_clkdm_sleep(struct clockdomain *clkdm)
+{
+ omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
+ return 0;
+}
+
+static int omap3_clkdm_wakeup(struct clockdomain *clkdm)
+{
+ omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
+ return 0;
+}
+
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_sleep = omap2_clkdm_sleep,
+ .clkdm_wakeup = omap2_clkdm_wakeup,
};
struct clkdm_ops omap3_clkdm_operations = {
@@ -123,4 +156,6 @@ struct clkdm_ops omap3_clkdm_operations = {
.clkdm_del_sleepdep = omap3_clkdm_del_sleepdep,
.clkdm_read_sleepdep = omap3_clkdm_read_sleepdep,
.clkdm_clear_all_sleepdeps = omap3_clkdm_clear_all_sleepdeps,
+ .clkdm_sleep = omap3_clkdm_sleep,
+ .clkdm_wakeup = omap3_clkdm_wakeup,
};
diff --git a/arch/arm/mach-omap2/clockdomain44xx.c b/arch/arm/mach-omap2/clockdomain44xx.c
new file mode 100644
index 0000000..9ccb406
--- /dev/null
+++ b/arch/arm/mach-omap2/clockdomain44xx.c
@@ -0,0 +1,35 @@
+/*
+ * OMAP4 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 at ti.com>
+ *
+ * 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 "clockdomain.h"
+#include "cminst44xx.h"
+
+static int omap4_clkdm_sleep(struct clockdomain *clkdm)
+{
+ omap4_cminst_clkdm_force_sleep(clkdm->prcm_partition,
+ clkdm->cm_inst, clkdm->clkdm_offs);
+ return 0;
+}
+
+static int omap4_clkdm_wakeup(struct clockdomain *clkdm)
+{
+ omap4_cminst_clkdm_force_wakeup(clkdm->prcm_partition,
+ clkdm->cm_inst, clkdm->clkdm_offs);
+ return 0;
+}
+
+struct clkdm_ops omap4_clkdm_operations = {
+ .clkdm_sleep = omap4_clkdm_sleep,
+ .clkdm_wakeup = omap4_clkdm_wakeup,
+};
diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c
index f04abc5..2fe1570 100644
--- a/arch/arm/mach-omap2/clockdomains44xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains44xx_data.c
@@ -307,5 +307,5 @@ static struct clockdomain *clockdomains_omap44xx[] __initdata = {
void __init omap44xx_clockdomains_init(void)
{
- clkdm_init(clockdomains_omap44xx, NULL, NULL);
+ clkdm_init(clockdomains_omap44xx, NULL, &omap4_clkdm_operations);
}
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index d5a102c..74c3100 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -124,7 +124,7 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
(pwrdm->flags & PWRDM_HAS_LOWPOWERSTATECHANGE)) {
sleep_switch = LOWPOWERSTATE_SWITCH;
} else {
- omap2_clkdm_wakeup(pwrdm->pwrdm_clkdms[0]);
+ clkdm_wakeup(pwrdm->pwrdm_clkdms[0]);
pwrdm_wait_transition(pwrdm);
sleep_switch = FORCEWAKEUP_SWITCH;
}
@@ -142,7 +142,7 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
if (pwrdm->pwrdm_clkdms[0]->flags & CLKDM_CAN_ENABLE_AUTO)
omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[0]);
else
- omap2_clkdm_sleep(pwrdm->pwrdm_clkdms[0]);
+ clkdm_sleep(pwrdm->pwrdm_clkdms[0]);
break;
case LOWPOWERSTATE_SWITCH:
pwrdm_set_lowpwrstchange(pwrdm);
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 9e5dc8e..5c32f5f 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -370,7 +370,7 @@ static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
omap2_clkdm_allow_idle(clkdm);
else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
atomic_read(&clkdm->usecount) == 0)
- omap2_clkdm_sleep(clkdm);
+ clkdm_sleep(clkdm);
return 0;
}
@@ -405,11 +405,11 @@ static void __init prcm_setup_regs(void)
pwrdm = clkdm_get_pwrdm(dsp_clkdm);
pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF);
- omap2_clkdm_sleep(dsp_clkdm);
+ clkdm_sleep(dsp_clkdm);
pwrdm = clkdm_get_pwrdm(gfx_clkdm);
pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF);
- omap2_clkdm_sleep(gfx_clkdm);
+ clkdm_sleep(gfx_clkdm);
/*
* Clear clockdomain wakeup dependencies and enable
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 8cbbead..b954b6f 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -992,7 +992,7 @@ static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
omap2_clkdm_allow_idle(clkdm);
else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
atomic_read(&clkdm->usecount) == 0)
- omap2_clkdm_sleep(clkdm);
+ clkdm_sleep(clkdm);
return 0;
}
--
1.7.0.4
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