linux-kernel - [PATCH v2 2/7] of: property: implement .property_read_string

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Message-Id: <20220323091810.329217-3-clement.leger@bootlin.com>
Date:   Wed, 23 Mar 2022 10:18:05 +0100
From:   Clément Léger <clement.leger@...tlin.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Wolfram Sang <wsa@...nel.org>, Peter Rosin <peda@...ntia.se>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Len Brown <lenb@...nel.org>
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Allan Nielsen <allan.nielsen@...rochip.com>,
        linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-i2c@...r.kernel.org,
        Clément Léger <clement.leger@...tlin.com>
Subject: [PATCH v2 2/7] of: property: implement .property_read_string_index callback

Implement .property_read_string_index callback using
of_property_read_string_index().

Signed-off-by: Clément Léger <clement.leger@...tlin.com>
---
 drivers/of/property.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 8e90071de6ed..573eea693bfa 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -915,6 +915,16 @@ of_fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
 		of_property_count_strings(node, propname);
 }
 
+static int
+of_fwnode_property_read_string_index(const struct fwnode_handle *fwnode,
+				     const char *propname, int index,
+				     const char **string)
+{
+	const struct device_node *node = to_of_node(fwnode);
+
+	return of_property_read_string_index(node, propname, index, string);
+}
+
 static const char *of_fwnode_get_name(const struct fwnode_handle *fwnode)
 {
 	return kbasename(to_of_node(fwnode)->full_name);
@@ -1475,6 +1485,7 @@ const struct fwnode_operations of_fwnode_ops = {
 	.property_present = of_fwnode_property_present,
 	.property_read_int_array = of_fwnode_property_read_int_array,
 	.property_read_string_array = of_fwnode_property_read_string_array,
+	.property_read_string_index = of_fwnode_property_read_string_index,
 	.get_name = of_fwnode_get_name,
 	.get_name_prefix = of_fwnode_get_name_prefix,
 	.get_parent = of_fwnode_get_parent,
-- 
2.34.1