power-domain: add dummy functions when CONFIG_POWER_DOMAIN not defined

Add dummy functions when CONFIG_POWER_DOMAIN not defined.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Anatolij Gustschin <agust@denx.de>

diff --git a/include/power-domain.h b/include/power-domain.h
index aba8c0f65c42b1f030ffecb678941e99831dd3e7..a558fbbdb21ab87b7465188875c66d3195a0cfc4 100644 (file)
--- a/include/power-domain.h
+++ b/include/power-domain.h
@@ -87,7 +87,15 @@ struct power_domain {
  * @power_domain       A pointer to a power domain struct to initialize.
  * @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);
+#else
+static inline
+int power_domain_get(struct udevice *dev, struct power_domain *power_domain)
+{
+       return -ENOSYS;
+}
+#endif
 
 /**
  * power_domain_free - Free a previously requested power domain.
@@ -96,7 +104,14 @@ int power_domain_get(struct udevice *dev, struct power_domain *power_domain);
  *             requested by power_domain_get().
  * @return 0 if OK, or a negative error code.
  */
+#if CONFIG_IS_ENABLED(POWER_DOMAIN)
 int power_domain_free(struct power_domain *power_domain);
+#else
+static inline int power_domain_free(struct power_domain *power_domain)
+{
+       return -ENOSYS;
+}
+#endif
 
 /**
  * power_domain_on - Enable power to a power domain.
@@ -105,7 +120,14 @@ int power_domain_free(struct power_domain *power_domain);
  *             requested by power_domain_get().
  * @return 0 if OK, or a negative error code.
  */
+#if CONFIG_IS_ENABLED(POWER_DOMAIN)
 int power_domain_on(struct power_domain *power_domain);
+#else
+static inline int power_domain_on(struct power_domain *power_domain)
+{
+       return -ENOSYS;
+}
+#endif
 
 /**
  * power_domain_off - Disable power ot a power domain.
@@ -114,6 +136,13 @@ int power_domain_on(struct power_domain *power_domain);
  *             requested by power_domain_get().
  * @return 0 if OK, or a negative error code.
  */
+#if CONFIG_IS_ENABLED(POWER_DOMAIN)
 int power_domain_off(struct power_domain *power_domain);
+#else
+static inline int power_domain_off(struct power_domain *power_domain)
+{
+       return -ENOSYS;
+}
+#endif
 
 #endif