From: Tero Kristo <tero.kri...@nokia.com>
Target state can be read / programmed via files under:
[debugfs]/pm_debug/[pwrdm]/suspend
Signed-off-by: Tero Kristo <tero.kri...@nokia.com>
Signed-off-by: Kevin Hilman <khil...@deeprootsystems.com>
---
arch/arm/mach-omap2/pm-debug.c | 31 +++++++++++++++++++++++++++++--
arch/arm/mach-omap2/pm.h | 3 +++
arch/arm/mach-omap2/pm34xx.c | 24 ++++++++++++++++++++++++
3 files changed, 56 insertions(+), 2 deletions(-)
mode change 100755 => 100644 arch/arm/mach-omap2/pm-debug.c
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
old mode 100755
new mode 100644
index 37b883b..eded6a4
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -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>
@@ -478,10 +479,28 @@ 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();
@@ -490,6 +509,14 @@ 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;
}
@@ -508,7 +535,7 @@ 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))
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 8fa8567..8400f57 100755
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -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;
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 331dfca..26f2aca 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -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;
--
1.6.4
--
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