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@xxxxxx>
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
Cc: Kevin Hilman <khilman@xxxxxx>
---
arch/arm/mach-omap2/pm44xx.c | 22 +++++++++++++++++++++-
1 files changed, 21 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 7502723..d55a9b8 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -16,9 +16,11 @@
#include <linux/err.h>
#include <linux/slab.h>
-#include "powerdomain.h"
#include <mach/omap4-common.h>
+#include "powerdomain.h"
+#include "clockdomain.h"
+
struct power_state {
struct powerdomain *pwrdm;
u32 next_state;
@@ -73,6 +75,22 @@ 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;
@@ -112,6 +130,8 @@ static int __init omap4_pm_init(void)
goto err2;
}
+ (void) clkdm_for_each(clkdms_setup, NULL);
+
ret = omap4_mpuss_init();
if (ret) {
pr_err("Failed to initialise OMAP4 MPUSS\n");
--
1.6.0.4
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