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: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 982aa67..1b4c160 100644
--- 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>
@@ -484,10 +485,28 @@
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 @@
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 @@
(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))
