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Fri, 17 Dec 2021 08:51:24 -0500 (EST) From: Maxime Ripard To: Daniel Vetter , David Airlie , Rob Herring , Frank Rowand , Laurent Pinchart , Chen-Yu Tsai , Maxime Ripard , =?utf-8?q?Jernej_=C5=A0krabec?= Cc: linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org Subject: [PATCH v6 1/7] of: Make of_graph_get_port_by_id take a const device_node Date: Fri, 17 Dec 2021 14:51:13 +0100 Message-Id: <20211217135119.316781-2-maxime@cerno.tech> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211217135119.316781-1-maxime@cerno.tech> References: <20211217135119.316781-1-maxime@cerno.tech> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211217_055128_576214_D55AE64E X-CRM114-Status: GOOD ( 11.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org of_graph_get_port_by_id doesn't modify the device_node pointer it takes as argument, so we can make it const. Signed-off-by: Maxime Ripard --- drivers/of/property.c | 2 +- include/linux/of_graph.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index 8e90071de6ed..8ad0ce5c87f3 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -603,7 +603,7 @@ EXPORT_SYMBOL(of_graph_parse_endpoint); * Return: A 'port' node pointer with refcount incremented. The caller * has to use of_node_put() on it when done. */ -struct device_node *of_graph_get_port_by_id(struct device_node *parent, u32 id) +struct device_node *of_graph_get_port_by_id(const struct device_node *parent, u32 id) { struct device_node *node, *port; diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h index 4d7756087b6b..87f3f4d0d0df 100644 --- a/include/linux/of_graph.h +++ b/include/linux/of_graph.h @@ -42,7 +42,7 @@ bool of_graph_is_present(const struct device_node *node); int of_graph_parse_endpoint(const struct device_node *node, struct of_endpoint *endpoint); int of_graph_get_endpoint_count(const struct device_node *np); -struct device_node *of_graph_get_port_by_id(struct device_node *node, u32 id); +struct device_node *of_graph_get_port_by_id(const struct device_node *node, u32 id); struct device_node *of_graph_get_next_endpoint(const struct device_node *parent, struct device_node *previous); struct device_node *of_graph_get_endpoint_by_regs( @@ -74,7 +74,7 @@ static inline int of_graph_get_endpoint_count(const struct device_node *np) } static inline struct device_node *of_graph_get_port_by_id( - struct device_node *node, u32 id) + const struct device_node *node, u32 id) { return NULL; }