linux-kernel - [PATCH v5 07/15] device property: Define format macros for ports and endpoints

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Message-Id: <20210107132838.396641-8-djrscally@gmail.com>
Date:   Thu,  7 Jan 2021 13:28:30 +0000
From:   Daniel Scally <djrscally@...il.com>
To:     linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-media@...r.kernel.org, devel@...ica.org, rjw@...ysocki.net,
        lenb@...nel.org, gregkh@...uxfoundation.org, mchehab@...nel.org,
        sergey.senozhatsky@...il.com
Cc:     yong.zhi@...el.com, sakari.ailus@...ux.intel.com,
        bingbu.cao@...el.com, tian.shu.qiu@...el.com,
        robert.moore@...el.com, erik.kaneda@...el.com, pmladek@...e.com,
        rostedt@...dmis.org, andriy.shevchenko@...ux.intel.com,
        linux@...musvillemoes.dk,
        laurent.pinchart+renesas@...asonboard.com,
        jacopo+renesas@...ndi.org, kieran.bingham+renesas@...asonboard.com,
        hverkuil-cisco@...all.nl, m.felsch@...gutronix.de,
        niklas.soderlund+renesas@...natech.se,
        prabhakar.mahadev-lad.rj@...renesas.com, slongerbeam@...il.com,
        heikki.krogerus@...ux.intel.com,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: [PATCH v5 07/15] device property: Define format macros for ports and endpoints

OF, ACPI and software_nodes all implement graphs including nodes for ports
and endpoints. These are all intended to be named with a common schema,
as "port@n" and "endpoint@n" where n is an unsigned int representing the
index of the node. To ensure commonality across the subsystems, provide a
set of macros to define the format.

Suggested-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Daniel Scally <djrscally@...il.com>
---
Changes in v5:

	- Changed commit subject

 include/linux/fwnode.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index fde4ad97564c..77414e431e89 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -50,6 +50,13 @@ struct fwnode_endpoint {
 	const struct fwnode_handle *local_fwnode;
 };
 
+/*
+ * ports and endpoints defined as software_nodes should all follow a common
+ * naming scheme; use these macros to ensure commonality.
+ */
+#define SWNODE_GRAPH_PORT_NAME_FMT		"port@%u"
+#define SWNODE_GRAPH_ENDPOINT_NAME_FMT		"endpoint@%u"
+
 #define NR_FWNODE_REFERENCE_ARGS	8
 
 /**
-- 
2.25.1