diff options
| author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2011-01-05 16:33:17 (GMT) |
|---|---|---|
| committer | Kevin Hilman <khilman@ti.com> | 2011-12-08 19:28:59 (GMT) |
| commit | 3c50729b3fa1cd8ca1f347e6caf1081204cf1a7c (patch) | |
| tree | da2dc3dbdd0b07e1f987dbe31c1e1ca68c2a413e /arch/arm | |
| parent | 361b02f3538bc5603a426ed3bb04129a8d7b9a67 (diff) | |
| download | linux-3c50729b3fa1cd8ca1f347e6caf1081204cf1a7c.tar.xz | |
ARM: OMAP4: PM: Initialise all the clockdomains to supported states
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/pm44xx.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index 35d392a..c34139d 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -17,6 +17,7 @@ #include <linux/slab.h> #include "common.h" +#include "clockdomain.h" #include "powerdomain.h" struct power_state { @@ -73,6 +74,22 @@ static const struct platform_suspend_ops omap_pm_ops = { }; #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) { struct power_state *pwrst; @@ -146,6 +163,8 @@ static int __init omap4_pm_init(void) goto err2; } + (void) clkdm_for_each(clkdms_setup, NULL); + #ifdef CONFIG_SUSPEND suspend_set_ops(&omap_pm_ops); #endif /* CONFIG_SUSPEND */ |