@@ -142,6 +142,7 @@
#include "powerdomain.h"
#include <plat/clock.h>
#include <plat/omap_hwmod.h>
+#include <plat/omap_device.h>
#include <plat/prcm.h>
#include "cm2xxx_3xxx.h"
@@ -2277,11 +2278,37 @@ ohsps_unlock:
return ret;
}
+/*
+ * omap_hwmod_update_power_state - Update the power domain power state of
+ * @oh
+ *
+ * @oh: struct omap_hwmod* to which the requesting device belongs to.
+ * @min_latency: the allowed wake-up latency for the power domain of @oh.
+ *
+ * Finds the power domain next power state that fulfills the constraint.
+ * Applies the constraint to the power domain by calling
+ * pwrdm_wakeuplat_update_pwrst.
+ *
+ * Returns 0 upon success.
+ */
+int omap_hwmod_update_power_state(struct omap_hwmod *oh, long min_latency)
+{
+ struct powerdomain *pwrdm = omap_hwmod_get_pwrdm(oh);
+
+ if (!PTR_ERR(pwrdm)) {
+ pr_err("omap_hwmod: Error: could not find parent "
+ "powerdomain for %s\n", oh->name);
+ return -EINVAL;
+ }
+
+ return pwrdm_wakeuplat_update_pwrst(pwrdm, min_latency);
+}
+
/**
* omap_hwmod_get_context_loss_count - get lost context count
* @oh: struct omap_hwmod *
*
- * Query the powerdomain of of @oh to get the context loss
+ * Query the powerdomain of @oh to get the context loss
* count for this device.
*
* Returns the context loss count of the powerdomain assocated with @oh
@@ -597,6 +597,7 @@ int omap_hwmod_for_each_by_class(const char *classname,
void *user);
int omap_hwmod_set_postsetup_state(struct omap_hwmod *oh, u8 state);
+int omap_hwmod_update_power_state(struct omap_hwmod *oh, long min_latency);
u32 omap_hwmod_get_context_loss_count(struct omap_hwmod *oh);
/*