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From:   =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= <clement.leger@bootlin.com>
To:     Philipp Zabel <p.zabel@pengutronix.de>,
        Rob Herring <robh+dt@kernel.org>,
        Frank Rowand <frowand.list@gmail.com>
Cc:     Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Allan Nielsen <allan.nielsen@microchip.com>,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
        =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= <clement.leger@bootlin.com>
Subject: [PATCH 1/2] of: add function to convert fwnode_reference_args to of_phandle_args
Date:   Wed, 23 Mar 2022 10:50:21 +0100
Message-Id: <20220323095022.453708-2-clement.leger@bootlin.com>
In-Reply-To: <20220323095022.453708-1-clement.leger@bootlin.com>
References: <20220323095022.453708-1-clement.leger@bootlin.com>
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Add of_phandle_args_from_fwnode_reference_args() which convert a struct
fwnode_reference_args to an of_phandle_args. This is used to maintain
compatibility for device-tree specifiers translation functions that are
used by various subsystem.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
---
 include/linux/of.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/include/linux/of.h b/include/linux/of.h
index 2dc77430a91a..1f6c8927c5ff 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -175,6 +175,18 @@ static inline bool is_of_node(const struct fwnode_handle *fwnode)
 			&__of_fwnode_handle_node->fwnode : NULL;	\
 	})
 
+static inline void
+of_phandle_args_from_fwnode_reference_args(struct of_phandle_args *of_args,
+					   const struct fwnode_reference_args *fwnode_args)
+{
+	int i;
+
+	of_args->np = to_of_node(fwnode_args->fwnode);
+	of_args->args_count = fwnode_args->nargs;
+	for (i = 0; i < fwnode_args->nargs; i++)
+		of_args->args[i] = fwnode_args->args[i];
+}
+
 static inline bool of_have_populated_dt(void)
 {
 	return of_root != NULL;
@@ -543,6 +555,12 @@ static inline struct device_node *of_find_node_with_property(
 
 #define of_fwnode_handle(node) NULL
 
+static inline void
+of_phandle_args_from_fwnode_reference_args(struct of_phandle_args *of_args,
+					   const struct fwnode_reference_args *fwnode_args)
+{
+}
+
 static inline bool of_have_populated_dt(void)
 {
 	return false;
-- 
2.34.1