redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

OMAP: clockdomain: Arch specific funcs for sleep/wakeup of clkdm

Browse source 
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@ti.com>
[paul@pwsan.com: fixed omap3_clkdm_clear_all_sleepdeps() and
 omap2_clkdm_clear_all_wkdeps() to test against the correct
 loop termination condition; thanks to Kevin Hilman for finding and
 helping fix]
Cc: Kevin Hilman <khilman@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Rajendra Nayak 2011-02-25 16:06:47 -07:00 committed by Paul Walmsley
parent 4aef7a2a5a
commit 68b921ad7f
9 changed files with 96 additions and 58 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
arch/arm/mach-omap2/Makefile
View file

@ -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 \

64
arch/arm/mach-omap2/clockdomain.c
View file

@ -355,7 +355,7 @@ 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);
@ -765,7 +765,7 @@ 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
@ -773,7 +773,7 @@ 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;
@ -784,33 +784,16 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm)
return -EINVAL;
}
if (!arch_clkdm || !arch_clkdm->clkdm_sleep)
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);
} else {
BUG();
};
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
@ -818,7 +801,7 @@ 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;
@ -829,29 +812,12 @@ int omap2_clkdm_wakeup(struct clockdomain *clkdm)
return -EINVAL;
}
if (!arch_clkdm || !arch_clkdm->clkdm_wakeup)
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);
} else {
BUG();
};
return 0;
return arch_clkdm->clkdm_wakeup(clkdm);
}
/**
@ -990,7 +956,7 @@ 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);
@ -1062,7 +1028,7 @@ 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);

5
arch/arm/mach-omap2/clockdomain.h
View file

@ -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

35
arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
View file

@ -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,
@ -111,11 +112,43 @@ 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 = {
@ -127,4 +160,6 @@ 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,
};

35
arch/arm/mach-omap2/clockdomain44xx.c Normal file
View file

@ -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@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,
};

2
arch/arm/mach-omap2/clockdomains44xx_data.c
View file

@ -305,5 +305,5 @@ 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);
}

4
arch/arm/mach-omap2/pm.c
View file

@ -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);

6
arch/arm/mach-omap2/pm24xx.c
View file

@ -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

2
arch/arm/mach-omap2/pm34xx.c
View file

@ -993,7 +993,7 @@ 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;
}