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From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Prashant Malani <pmalani@chromium.org>,
        linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-usb@vger.kernel.org
Cc:     Daniel Scally <djrscally@gmail.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>
Subject: [PATCH v2 2/5] device property: Constify fwnode connection match APIs
Date:   Wed, 28 Sep 2022 13:57:43 +0300
Message-Id: <20220928105746.51208-3-andriy.shevchenko@linux.intel.com>
In-Reply-To: <20220928105746.51208-1-andriy.shevchenko@linux.intel.com>
References: <20220928105746.51208-1-andriy.shevchenko@linux.intel.com>
MIME-Version: 1.0
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The fwnode and device parameters are not altered in the fwnode
connection match APIs, constify them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/base/property.c     |  8 ++++----
 drivers/usb/roles/class.c   |  2 +-
 drivers/usb/typec/mux.c     |  8 ++++----
 drivers/usb/typec/retimer.c |  2 +-
 include/linux/property.h    | 10 +++++-----
 5 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/base/property.c b/drivers/base/property.c
index 699f1b115e0a..1a1616c9b599 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -1213,7 +1213,7 @@ const void *device_get_match_data(const struct device *dev)
 }
 EXPORT_SYMBOL_GPL(device_get_match_data);
 
-static unsigned int fwnode_graph_devcon_matches(struct fwnode_handle *fwnode,
+static unsigned int fwnode_graph_devcon_matches(const struct fwnode_handle *fwnode,
 						const char *con_id, void *data,
 						devcon_match_fn_t match,
 						void **matches,
@@ -1247,7 +1247,7 @@ static unsigned int fwnode_graph_devcon_matches(struct fwnode_handle *fwnode,
 	return count;
 }
 
-static unsigned int fwnode_devcon_matches(struct fwnode_handle *fwnode,
+static unsigned int fwnode_devcon_matches(const struct fwnode_handle *fwnode,
 					  const char *con_id, void *data,
 					  devcon_match_fn_t match,
 					  void **matches,
@@ -1289,7 +1289,7 @@ static unsigned int fwnode_devcon_matches(struct fwnode_handle *fwnode,
  * device node. @match will be used to convert the connection description to
  * data the caller is expecting to be returned.
  */
-void *fwnode_connection_find_match(struct fwnode_handle *fwnode,
+void *fwnode_connection_find_match(const struct fwnode_handle *fwnode,
 				   const char *con_id, void *data,
 				   devcon_match_fn_t match)
 {
@@ -1326,7 +1326,7 @@ EXPORT_SYMBOL_GPL(fwnode_connection_find_match);
  *
  * Return: Number of matches resolved, or negative errno.
  */
-int fwnode_connection_find_matches(struct fwnode_handle *fwnode,
+int fwnode_connection_find_matches(const struct fwnode_handle *fwnode,
 				   const char *con_id, void *data,
 				   devcon_match_fn_t match,
 				   void **matches, unsigned int matches_len)
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index dfaed7eee94f..a3575a5a18ce 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -87,7 +87,7 @@ enum usb_role usb_role_switch_get_role(struct usb_role_switch *sw)
 }
 EXPORT_SYMBOL_GPL(usb_role_switch_get_role);
 
-static void *usb_role_switch_match(struct fwnode_handle *fwnode, const char *id,
+static void *usb_role_switch_match(const struct fwnode_handle *fwnode, const char *id,
 				   void *data)
 {
 	struct device *dev;
diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c
index 464330776cd6..f81ea26ab389 100644
--- a/drivers/usb/typec/mux.c
+++ b/drivers/usb/typec/mux.c
@@ -32,8 +32,8 @@ static int switch_fwnode_match(struct device *dev, const void *fwnode)
 	return dev_fwnode(dev) == fwnode;
 }
 
-static void *typec_switch_match(struct fwnode_handle *fwnode, const char *id,
-				void *data)
+static void *typec_switch_match(const struct fwnode_handle *fwnode,
+				const char *id, void *data)
 {
 	struct device *dev;
 
@@ -262,8 +262,8 @@ static int mux_fwnode_match(struct device *dev, const void *fwnode)
 	return dev_fwnode(dev) == fwnode;
 }
 
-static void *typec_mux_match(struct fwnode_handle *fwnode, const char *id,
-			     void *data)
+static void *typec_mux_match(const struct fwnode_handle *fwnode,
+			     const char *id, void *data)
 {
 	const struct typec_altmode_desc *desc = data;
 	struct device *dev;
diff --git a/drivers/usb/typec/retimer.c b/drivers/usb/typec/retimer.c
index 2003731f1bee..8edfdc709a28 100644
--- a/drivers/usb/typec/retimer.c
+++ b/drivers/usb/typec/retimer.c
@@ -34,7 +34,7 @@ static int retimer_fwnode_match(struct device *dev, const void *fwnode)
 	return dev_fwnode(dev) == fwnode && dev_name_ends_with(dev, "-retimer");
 }
 
-static void *typec_retimer_match(struct fwnode_handle *fwnode, const char *id, void *data)
+static void *typec_retimer_match(const struct fwnode_handle *fwnode, const char *id, void *data)
 {
 	struct device *dev;
 
diff --git a/include/linux/property.h b/include/linux/property.h
index ae5d7f8eccf4..6f9d6604edc3 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -438,21 +438,21 @@ unsigned int fwnode_graph_get_endpoint_count(struct fwnode_handle *fwnode,
 int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
 				struct fwnode_endpoint *endpoint);
 
-typedef void *(*devcon_match_fn_t)(struct fwnode_handle *fwnode, const char *id,
+typedef void *(*devcon_match_fn_t)(const struct fwnode_handle *fwnode, const char *id,
 				   void *data);
 
-void *fwnode_connection_find_match(struct fwnode_handle *fwnode,
+void *fwnode_connection_find_match(const struct fwnode_handle *fwnode,
 				   const char *con_id, void *data,
 				   devcon_match_fn_t match);
 
-static inline void *device_connection_find_match(struct device *dev,
+static inline void *device_connection_find_match(const struct device *dev,
 						 const char *con_id, void *data,
 						 devcon_match_fn_t match)
 {
-	return fwnode_connection_find_match(dev_fwnode(dev), con_id, data, match);
+	return fwnode_connection_find_match(dev_fwnode_const(dev), con_id, data, match);
 }
 
-int fwnode_connection_find_matches(struct fwnode_handle *fwnode,
+int fwnode_connection_find_matches(const struct fwnode_handle *fwnode,
 				   const char *con_id, void *data,
 				   devcon_match_fn_t match,
 				   void **matches, unsigned int matches_len);
-- 
2.35.1