X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fpower-domain.h;h=2ff6c77cd765fe3791b8939d96c1c6abfb9f69b6;hb=6786ce1ce14feb4d02854a0c04bc0cce505be46e;hp=a558fbbdb21ab87b7465188875c66d3195a0cfc4;hpb=63d54c9c598079d3f30efb9e71be8fe5345a451d;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/power-domain.h b/include/power-domain.h
index a558fbb..2ff6c77 100644
--- a/include/power-domain.h
+++ b/include/power-domain.h
@@ -55,23 +55,12 @@ struct udevice;
  *
  * @dev: The device which implements the power domain.
  * @id: The power domain ID within the provider.
- *
- * Currently, the power domain API assumes that a single integer ID is enough
- * to identify and configure any power domain for any power domain provider. If
- * this assumption becomes invalid in the future, the struct could be expanded
- * to either (a) add more fields to allow power domain providers to store
- * additional information, or (b) replace the id field with an opaque pointer,
- * which the provider would dynamically allocate during its .of_xlate op, and
- * process during is .request op. This may require the addition of an extra op
- * to clean up the allocation.
+ * @priv: Private data corresponding to each power domain.
  */
 struct power_domain {
 	struct udevice *dev;
-	/*
-	 * Written by of_xlate. We assume a single id is enough for now. In the
-	 * future, we might add more fields here.
-	 */
 	unsigned long id;
+	void *priv;
 };
 
 /**
@@ -85,7 +74,7 @@ struct power_domain {
  *
  * @dev:	The client device.
  * @power_domain	A pointer to a power domain struct to initialize.
- * @return 0 if OK, or a negative error code.
+ * Return: 0 if OK, or a negative error code.
  */
 #if CONFIG_IS_ENABLED(POWER_DOMAIN)
 int power_domain_get(struct udevice *dev, struct power_domain *power_domain);
@@ -98,11 +87,53 @@ int power_domain_get(struct udevice *dev, struct power_domain *power_domain)
 #endif
 
 /**
+ * power_domain_get_by_index - Get the indexed power domain for a device.
+ *
+ * @dev:		The client device.
+ * @power_domain:	A pointer to a power domain struct to initialize.
+ * @index:		Power domain index to be powered on.
+ *
+ * Return: 0 if OK, or a negative error code.
+ */
+#if CONFIG_IS_ENABLED(POWER_DOMAIN)
+int power_domain_get_by_index(struct udevice *dev,
+			      struct power_domain *power_domain, int index);
+#else
+static inline
+int power_domain_get_by_index(struct udevice *dev,
+			      struct power_domain *power_domain, int index)
+{
+	return -ENOSYS;
+}
+#endif
+
+/**
+ * power_domain_get_by_name - Get the named power domain for a device.
+ *
+ * @dev:		The client device.
+ * @power_domain:	A pointer to a power domain struct to initialize.
+ * @name:		Power domain name to be powered on.
+ *
+ * Return: 0 if OK, or a negative error code.
+ */
+#if CONFIG_IS_ENABLED(POWER_DOMAIN)
+int power_domain_get_by_name(struct udevice *dev,
+			     struct power_domain *power_domain, const char *name);
+#else
+static inline
+int power_domain_get_by_name(struct udevice *dev,
+			     struct power_domain *power_domain, const char *name)
+{
+	return -ENOSYS;
+}
+#endif
+
+/**
  * power_domain_free - Free a previously requested power domain.
  *
  * @power_domain:	A power domain struct that was previously successfully
  *		requested by power_domain_get().
- * @return 0 if OK, or a negative error code.
+ * Return: 0 if OK, or a negative error code.
  */
 #if CONFIG_IS_ENABLED(POWER_DOMAIN)
 int power_domain_free(struct power_domain *power_domain);
@@ -118,7 +149,7 @@ static inline int power_domain_free(struct power_domain *power_domain)
  *
  * @power_domain:	A power domain struct that was previously successfully
  *		requested by power_domain_get().
- * @return 0 if OK, or a negative error code.
+ * Return: 0 if OK, or a negative error code.
  */
 #if CONFIG_IS_ENABLED(POWER_DOMAIN)
 int power_domain_on(struct power_domain *power_domain);
@@ -130,11 +161,11 @@ static inline int power_domain_on(struct power_domain *power_domain)
 #endif
 
 /**
- * power_domain_off - Disable power ot a power domain.
+ * power_domain_off - Disable power to a power domain.
  *
  * @power_domain:	A power domain struct that was previously successfully
  *		requested by power_domain_get().
- * @return 0 if OK, or a negative error code.
+ * Return: 0 if OK, or a negative error code.
  */
 #if CONFIG_IS_ENABLED(POWER_DOMAIN)
 int power_domain_off(struct power_domain *power_domain);
@@ -145,4 +176,36 @@ static inline int power_domain_off(struct power_domain *power_domain)
 }
 #endif
 
+/**
+ * dev_power_domain_on - Enable power domains for a device .
+ *
+ * @dev:		The client device.
+ *
+ * Return: 0 if OK, or a negative error code.
+ */
+#if CONFIG_IS_ENABLED(OF_REAL) && CONFIG_IS_ENABLED(POWER_DOMAIN)
+int dev_power_domain_on(struct udevice *dev);
+#else
+static inline int dev_power_domain_on(struct udevice *dev)
+{
+	return 0;
+}
+#endif
+
+/**
+ * dev_power_domain_off - Disable power domains for a device .
+ *
+ * @dev:		The client device.
+ *
+ * Return: 0 if OK, or a negative error code.
+ */
+#if CONFIG_IS_ENABLED(OF_REAL) && CONFIG_IS_ENABLED(POWER_DOMAIN)
+int dev_power_domain_off(struct udevice *dev);
+#else
+static inline int dev_power_domain_off(struct udevice *dev)
+{
+	return 0;
+}
+#endif
+
 #endif