* Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> [090813 19:54]:
> From: Tero Kristo <tero.kristo@xxxxxxxxx>
>
> Target state can be read / programmed via files under:
> [debugfs]/pm_debug/[pwrdm]/suspend
Does this compile when CONFIG_DEBUG_FS is not set?
Tony
>
> Signed-off-by: Tero Kristo <tero.kristo@xxxxxxxxx>
> Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
> ---
> 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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