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ARM: OMAP4: PM: Initialise all the clockdomains to supported states

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Initialise hardware supervised mode for all clockdomains if it's
supported. Initiate sleep transition for other clockdomains,
if they are not being used.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Santosh Shilimkar 2011-01-05 22:03:17 +05:30 committed by Kevin Hilman
parent 361b02f353
commit 3c50729b3f
1 changed files with 19 additions and 0 deletions
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19
arch/arm/mach-omap2/pm44xx.c
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@ -17,6 +17,7 @@
#include <linux/slab.h> #include <linux/slab.h>
#include "common.h" #include "common.h"
#include "clockdomain.h"
#include "powerdomain.h" #include "powerdomain.h"
struct power_state { struct power_state {
@ -73,6 +74,22 @@ static const struct platform_suspend_ops omap_pm_ops = {
}; };
#endif /* CONFIG_SUSPEND */ #endif /* CONFIG_SUSPEND */
/*
* Enable hardware supervised mode for all clockdomains if it's
* supported. Initiate sleep transition for other clockdomains, if
* they are not used
*/
static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
{
if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)
clkdm_allow_idle(clkdm);
else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
atomic_read(&clkdm->usecount) == 0)
clkdm_sleep(clkdm);
return 0;
}
static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
{ {
struct power_state *pwrst; struct power_state *pwrst;
@ -146,6 +163,8 @@ static int __init omap4_pm_init(void)
goto err2; goto err2;
} }
(void) clkdm_for_each(clkdms_setup, NULL);
#ifdef CONFIG_SUSPEND #ifdef CONFIG_SUSPEND
suspend_set_ops(&omap_pm_ops); suspend_set_ops(&omap_pm_ops);
#endif /* CONFIG_SUSPEND */ #endif /* CONFIG_SUSPEND */