media: ipu-bridge: Add a parse_sensor_fwnode callback to ipu_bridge_init()

Add a parse_sensor_fwnode() callback to ipu_bridge_init(), so that
ipu_bridge_init() can be used with other sensor fwnode parse functions
then just ipu_bridge_parse_ssdb().

This will allow the ipu3-bridge code to also be used by the atomisp
driver.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/pci/intel/ipu-bridge.c

@@ -148,8 +148,7 @@ static enum v4l2_fwnode_orientation ipu_bridge_parse_orientation(struct acpi_dev
 	return orientation;
 }
 
-static int ipu_bridge_parse_ssdb(struct acpi_device *adev,
-				 struct ipu_sensor *sensor)
+int ipu_bridge_parse_ssdb(struct acpi_device *adev, struct ipu_sensor *sensor)
 {
 	struct ipu_sensor_ssdb ssdb = {};
 	int ret;
@@ -179,6 +178,7 @@ static int ipu_bridge_parse_ssdb(struct acpi_device *adev,
 
 	return 0;
 }
+EXPORT_SYMBOL_NS_GPL(ipu_bridge_parse_ssdb, INTEL_IPU_BRIDGE);
 
 static void ipu_bridge_create_fwnode_properties(
 	struct ipu_sensor *sensor,
@@ -343,7 +343,7 @@ static int ipu_bridge_connect_sensor(const struct ipu_sensor_config *cfg,
 
 		sensor = &bridge->sensors[bridge->n_sensors];
 
-		ret = ipu_bridge_parse_ssdb(adev, sensor);
+		ret = bridge->parse_sensor_fwnode(adev, sensor);
 		if (ret)
 			goto err_put_adev;
 
@@ -441,7 +441,8 @@ static int ipu_bridge_sensors_are_ready(void)
 	return ready;
 }
 
-int ipu_bridge_init(struct device *dev)
+int ipu_bridge_init(struct device *dev,
+		    ipu_parse_sensor_fwnode_t parse_sensor_fwnode)
 {
 	struct fwnode_handle *fwnode;
 	struct ipu_bridge *bridge;
@@ -459,6 +460,7 @@ int ipu_bridge_init(struct device *dev)
 		sizeof(bridge->ipu_node_name));
 	bridge->ipu_hid_node.name = bridge->ipu_node_name;
 	bridge->dev = dev;
+	bridge->parse_sensor_fwnode = parse_sensor_fwnode;
 
 	ret = software_node_register(&bridge->ipu_hid_node);
 	if (ret < 0) {

drivers/media/pci/intel/ipu-bridge.h

@@ -140,8 +140,12 @@ struct ipu_sensor {
 	struct software_node_ref_args vcm_ref[1];
 };
 
+typedef int (*ipu_parse_sensor_fwnode_t)(struct acpi_device *adev,
+					 struct ipu_sensor *sensor);
+
 struct ipu_bridge {
 	struct device *dev;
+	ipu_parse_sensor_fwnode_t parse_sensor_fwnode;
 	char ipu_node_name[ACPI_ID_LEN];
 	struct software_node ipu_hid_node;
 	u32 data_lanes[4];
@@ -150,9 +154,12 @@ struct ipu_bridge {
 };
 
 #if IS_ENABLED(CONFIG_IPU_BRIDGE)
-int ipu_bridge_init(struct device *dev);
+int ipu_bridge_init(struct device *dev,
+		    ipu_parse_sensor_fwnode_t parse_sensor_fwnode);
+int ipu_bridge_parse_ssdb(struct acpi_device *adev, struct ipu_sensor *sensor);
 #else
-static inline int ipu_bridge_init(struct device *dev) { return 0; }
+/* Use a define to avoid the @parse_sensor_fwnode argument getting evaluated */
+#define ipu_bridge_init(dev, parse_sensor_fwnode)	(0)
 #endif
 
 #endif

drivers/media/pci/intel/ipu3/ipu3-cio2.c

@@ -1725,7 +1725,7 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
 			return -EINVAL;
 		}
 
-		r = ipu_bridge_init(dev);
+		r = ipu_bridge_init(dev, ipu_bridge_parse_ssdb);
 		if (r)
 			return r;
 	}