[cip-dev] [PATCH 4.19.y-cip 01/23] device connection: Add fwnode member to struct device_connection

Marian-Cristian Rotariu
2020-02-18T14:04:58Z

From: Heikki Krogerus <heikki.krogerus@linux.intel.com>

commit 09aa11cfda9d8186046bcd1adcd6498b688114f4 upstream.

This will prepare the device connection API for connections
described in firmware.

Acked-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
---
include/linux/device.h | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/include/linux/device.h b/include/linux/device.h
index 19dd885..ceb69b9 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -753,11 +753,17 @@ struct device_dma_parameters {

/**
* struct device_connection - Device Connection Descriptor
+ * @fwnode: The device node of the connected device
* @endpoint: The names of the two devices connected together
* @id: Unique identifier for the connection
* @list: List head, private, for internal use only
+ *
+ * NOTE: @fwnode is not used together with @endpoint. @fwnode is used when
+ * platform firmware defines the connection. When the connection is registered
+ * with device_connection_add() @endpoint is used instead.
*/
struct device_connection {
+ struct fwnode_handle *fwnode;
const char *endpoint[2];
const char *id;
struct list_head list;
--
2.7.4