[09/12] i2c: icy: Constify the software node

Message ID 20210329105047.51033-10-heikki.krogerus@linux.intel.com
State New
Headers show
Series
  • i2c: Adding support for software nodes
Related show

Commit Message

Heikki Krogerus March 29, 2021, 10:50 a.m.
Complete software node can now be supplied to the device
with struct i2c_board_info.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Max Staudt <max@enpas.org>
---
 drivers/i2c/busses/i2c-icy.c | 32 +++++++++-----------------------
 1 file changed, 9 insertions(+), 23 deletions(-)

Comments

Max Staudt March 30, 2021, 1:58 p.m. | #1
This looks great, thank you for constifying this.

Finally it's clean again, yet much more flexible than the original
platform_data approach when I first submitted the driver.



Thanks everyone for your work

Max

Patch

diff --git a/drivers/i2c/busses/i2c-icy.c b/drivers/i2c/busses/i2c-icy.c
index 66c9923fc7665..c8c422e9dda43 100644
--- a/drivers/i2c/busses/i2c-icy.c
+++ b/drivers/i2c/busses/i2c-icy.c
@@ -54,7 +54,6 @@  struct icy_i2c {
 
 	void __iomem *reg_s0;
 	void __iomem *reg_s1;
-	struct fwnode_handle *ltc2990_fwnode;
 	struct i2c_client *ltc2990_client;
 };
 
@@ -115,6 +114,10 @@  static const struct property_entry icy_ltc2990_props[] = {
 	{ }
 };
 
+static const struct software_node icy_ltc2990_node = {
+	.properties = icy_ltc2990_props,
+};
+
 static int icy_probe(struct zorro_dev *z,
 		     const struct zorro_device_id *ent)
 {
@@ -123,6 +126,7 @@  static int icy_probe(struct zorro_dev *z,
 	struct fwnode_handle *new_fwnode;
 	struct i2c_board_info ltc2990_info = {
 		.type		= "ltc2990",
+		.swnode		= &icy_ltc2990_node,
 	};
 
 	i2c = devm_kzalloc(&z->dev, sizeof(*i2c), GFP_KERNEL);
@@ -174,26 +178,10 @@  static int icy_probe(struct zorro_dev *z,
 	 *
 	 * See property_entry above for in1, in2, temp3.
 	 */
-	new_fwnode = fwnode_create_software_node(icy_ltc2990_props, NULL);
-	if (IS_ERR(new_fwnode)) {
-		dev_info(&z->dev, "Failed to create fwnode for LTC2990, error: %ld\n",
-			 PTR_ERR(new_fwnode));
-	} else {
-		/*
-		 * Store the fwnode so we can destroy it on .remove().
-		 * Only store it on success, as fwnode_remove_software_node()
-		 * is NULL safe, but not PTR_ERR safe.
-		 */
-		i2c->ltc2990_fwnode = new_fwnode;
-		ltc2990_info.fwnode = new_fwnode;
-
-		i2c->ltc2990_client =
-			i2c_new_scanned_device(&i2c->adapter,
-					       &ltc2990_info,
-					       icy_ltc2990_addresses,
-					       NULL);
-	}
-
+	i2c->ltc2990_client = i2c_new_scanned_device(&i2c->adapter,
+						     &ltc2990_info,
+						     icy_ltc2990_addresses,
+						     NULL);
 	return 0;
 }
 
@@ -202,8 +190,6 @@  static void icy_remove(struct zorro_dev *z)
 	struct icy_i2c *i2c = dev_get_drvdata(&z->dev);
 
 	i2c_unregister_device(i2c->ltc2990_client);
-	fwnode_remove_software_node(i2c->ltc2990_fwnode);
-
 	i2c_del_adapter(&i2c->adapter);
 }