Commit 68d4778c authored by Tero Kristo's avatar Tero Kristo Committed by Kevin Hilman
Browse files

OMAP: PM: Added suspend target state control to debugfs for OMAP3 



Target state can be read / programmed via files under:
  [debugfs]/pm_debug/[pwrdm]/suspend

Signed-off-by: default avatarTero Kristo <tero.kristo@nokia.com>
Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent 2811d6b3

arch/arm/mach-omap2/pm-debug.c

+29 −2
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 
#include <linux/clk.h>

#include <linux/err.h>

#include <linux/io.h>

#include <linux/module.h>



#include <mach/clock.h>

#include <mach/board.h>
@@ -484,10 +485,28 @@ int pm_dbg_regset_init(int reg_set) 
	return 0;

}



static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)

static int pwrdm_suspend_get(void *data, u64 *val)

{

	*val = omap3_pm_get_suspend_state((struct powerdomain *)data);



	if (*val >= 0)

		return 0;

	return *val;

}



static int pwrdm_suspend_set(void *data, u64 val)

{

	return omap3_pm_set_suspend_state((struct powerdomain *)data, (int)val);

}



DEFINE_SIMPLE_ATTRIBUTE(pwrdm_suspend_fops, pwrdm_suspend_get,

			pwrdm_suspend_set, "%llu\n");



static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir)

{

	int i;

	s64 t;

	struct dentry *d;



	t = sched_clock();
@@ -496,6 +515,14 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) 


	pwrdm->timer = t;



	if (strncmp(pwrdm->name, "dpll", 4) == 0)

		return 0;



	d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir);



	(void) debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d,

			(void *)pwrdm, &pwrdm_suspend_fops);



	return 0;

}
@@ -524,7 +551,7 @@ static int __init pm_dbg_init(void) 
	(void) debugfs_create_file("time", S_IRUGO,

		d, (void *)DEBUG_FILE_TIMERS, &debug_fops);



	pwrdm_for_each(pwrdms_setup, NULL);

	pwrdm_for_each(pwrdms_setup, (void *)d);



	pm_dbg_dir = debugfs_create_dir("registers", d);

	if (IS_ERR(pm_dbg_dir))

arch/arm/mach-omap2/pm.h

+3 −0
Original line number Diff line number Diff line
@@ -13,6 +13,9 @@ 


#include <mach/powerdomain.h>



extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);

extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);



#ifdef CONFIG_PM_DEBUG

extern void omap2_pm_dump(int mode, int resume, unsigned int us);

extern int omap2_pm_debug;

arch/arm/mach-omap2/pm34xx.c

+24 −0
Original line number Diff line number Diff line
@@ -664,6 +664,30 @@ static void __init prcm_setup_regs(void) 
	omap3_d2d_idle();

}



int omap3_pm_get_suspend_state(struct powerdomain *pwrdm)

{

	struct power_state *pwrst;



	list_for_each_entry(pwrst, &pwrst_list, node) {

		if (pwrst->pwrdm == pwrdm)

			return pwrst->next_state;

	}

	return -EINVAL;

}



int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state)

{

	struct power_state *pwrst;



	list_for_each_entry(pwrst, &pwrst_list, node) {

		if (pwrst->pwrdm == pwrdm) {

			pwrst->next_state = state;

			return 0;

		}

	}

	return -EINVAL;

}



static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)

{

	struct power_state *pwrst;