[U-Boot] [PATCH 1/2] misc: uclass: Add enable/disable functions

[Mario Six]

Add generic enable/disable functions to the misc uclass.

Signed-off-by: Mario Six <mario.six at gdsys.cc>
---
 drivers/misc/misc-uclass.c | 20 ++++++++++++++++++++
 include/misc.h             | 30 ++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)

diff --git a/drivers/misc/misc-uclass.c b/drivers/misc/misc-uclass.c
index d9eea3dac5..942fa8da94 100644
--- a/drivers/misc/misc-uclass.c
+++ b/drivers/misc/misc-uclass.c
@@ -56,6 +56,26 @@ int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
 	return ops->call(dev, msgid, tx_msg, tx_size, rx_msg, rx_size);
 }
 
+int misc_enable(struct udevice *dev)
+{
+	const struct misc_ops *ops = device_get_ops(dev);
+
+	if (!ops->enable)
+		return -ENOSYS;
+
+	return ops->enable(dev);
+}
+
+int misc_disable(struct udevice *dev)
+{
+	const struct misc_ops *ops = device_get_ops(dev);
+
+	if (!ops->enable)
+		return -ENOSYS;
+
+	return ops->disable(dev);
+}
+
 UCLASS_DRIVER(misc) = {
 	.id		= UCLASS_MISC,
 	.name		= "misc",
diff --git a/include/misc.h b/include/misc.h
index 03ef55cdc8..6f86396443 100644
--- a/include/misc.h
+++ b/include/misc.h
@@ -58,6 +58,22 @@ int misc_ioctl(struct udevice *dev, unsigned long request, void *buf);
 int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
 	      void *rx_msg, int rx_size);
 
+/*
+ * Enable a device.
+ *
+ * @dev: the device to enable.
+ * @return: 0 if OK, -ve on error
+ */
+int misc_enable(struct udevice *dev);
+
+/*
+ * Disable a device.
+ *
+ * @dev: the device to disable.
+ * @return: 0 if OK, -ve on error
+ */
+int misc_disable(struct udevice *dev);
+
 /*
  * struct misc_ops - Driver model Misc operations
  *
@@ -109,6 +125,20 @@ struct misc_ops {
 	 */
 	int (*call)(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
 		    void *rx_msg, int rx_size);
+	/*
+	 * Enable a device, optional.
+	 *
+	 * @dev: the device to enable.
+	 * @return: 0 if OK, -ve on error
+	 */
+	int (*enable)(struct udevice *dev);
+	/*
+	 * Disable a device, optional.
+	 *
+	 * @dev: the device to disable.
+	 * @return: 0 if OK, -ve on error
+	 */
+	int (*disable)(struct udevice *dev);
 };
 
 #endif	/* _MISC_H_ */
-- 
2.16.1