[PATCH 14/17] of: dynamic: Introduce of_changeset_add_prop_bool()

From: Herve Codina <herve.codina@bootlin.com>
To: Herve Codina <herve.codina@bootlin.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Lee Jones <lee@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Horatiu Vultur <horatiu.vultur@microchip.com>,
	UNGLinuxDriver@microchip.com, Andrew Lunn <andrew@lunn.ch>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	Saravana Kannan <saravanak@google.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Lars Povlsen <lars.povlsen@microchip.com>,
	Steen Hegelund <Steen.Hegelund@microchip.com>,
	Daniel Machon <daniel.machon@microchip.com>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	netdev@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Allan Nielsen <allan.nielsen@microchip.com>,
	Steen Hegelund <steen.hegelund@microchip.com>,
	Luca Ceresoli <luca.ceresoli@bootlin.com>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: [PATCH 14/17] of: dynamic: Introduce of_changeset_add_prop_bool()
Date: Tue, 30 Apr 2024 10:37:23 +0200	[thread overview]
Message-ID: <20240430083730.134918-15-herve.codina@bootlin.com> (raw)
In-Reply-To: <20240430083730.134918-1-herve.codina@bootlin.com>

APIs to add some properties in a changeset exist but nothing to add a DT
boolean property (i.e. a property without any values).

Fill this lack with of_changeset_add_prop_bool().

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
 drivers/of/dynamic.c | 25 +++++++++++++++++++++++++
 include/linux/of.h   |  3 +++
 2 files changed, 28 insertions(+)

diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index 4d57a4e34105..37d3b0a272dc 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -1052,3 +1052,28 @@ int of_changeset_add_prop_u32_array(struct of_changeset *ocs,
 	return ret;
 }
 EXPORT_SYMBOL_GPL(of_changeset_add_prop_u32_array);
+
+/**
+ * of_changeset_add_prop_bool - Add a boolean property (i.e. a property without
+ * any values) to a changeset.
+ *
+ * @ocs:	changeset pointer
+ * @np:		device node pointer
+ * @prop_name:	name of the property to be added
+ *
+ * Create a boolean property and add it to a changeset.
+ *
+ * Return: 0 on success, a negative error value in case of an error.
+ */
+int of_changeset_add_prop_bool(struct of_changeset *ocs, struct device_node *np,
+			       const char *prop_name)
+{
+	struct property prop;
+
+	prop.name = (char *)prop_name;
+	prop.length = 0;
+	prop.value = NULL;
+
+	return of_changeset_add_prop_helper(ocs, np, &prop);
+}
+EXPORT_SYMBOL_GPL(of_changeset_add_prop_bool);
diff --git a/include/linux/of.h b/include/linux/of.h
index a0bedd038a05..9633199a954a 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -1652,6 +1652,9 @@ static inline int of_changeset_add_prop_u32(struct of_changeset *ocs,
 	return of_changeset_add_prop_u32_array(ocs, np, prop_name, &val, 1);
 }
 
+int of_changeset_add_prop_bool(struct of_changeset *ocs, struct device_node *np,
+			       const char *prop_name);
+
 #else /* CONFIG_OF_DYNAMIC */
 static inline int of_reconfig_notifier_register(struct notifier_block *nb)
 {
-- 
2.44.0


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