cxl/port: Remove Component Register base address from struct cxl_port

The Component Register base address @component_reg_phys is no longer
used after the rework of the Component Register setup which now uses
struct member @reg_map instead. Remove the base address.

Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20231018171713.1883517-10-rrichter@amd.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Author: Robert Richter

drivers/cxl/core/port.c

@@ -619,7 +619,6 @@ static int devm_cxl_link_parent_dport(struct device *host,
 static struct lock_class_key cxl_port_key;
 
 static struct cxl_port *cxl_port_alloc(struct device *uport_dev,
-				       resource_size_t component_reg_phys,
 				       struct cxl_dport *parent_dport)
 {
 	struct cxl_port *port;
@@ -670,7 +669,6 @@ static struct cxl_port *cxl_port_alloc(struct device *uport_dev,
 	} else
 		dev->parent = uport_dev;
 
-	port->component_reg_phys = component_reg_phys;
 	ida_init(&port->decoder_ida);
 	port->hdm_end = -1;
 	port->commit_end = -1;
@@ -746,7 +744,7 @@ static struct cxl_port *__devm_cxl_add_port(struct device *host,
 	struct device *dev;
 	int rc;
 
-	port = cxl_port_alloc(uport_dev, component_reg_phys, parent_dport);
+	port = cxl_port_alloc(uport_dev, parent_dport);
 	if (IS_ERR(port))
 		return port;
 

drivers/cxl/cxl.h

@@ -576,7 +576,6 @@ struct cxl_dax_region {
  * @nr_dports: number of entries in @dports
  * @hdm_end: track last allocated HDM decoder instance for allocation ordering
  * @commit_end: cursor to track highest committed decoder for commit ordering
- * @component_reg_phys: component register capability base address (optional)
  * @dead: last ep has been removed, force port re-creation
  * @depth: How deep this port is relative to the root. depth 0 is the root.
  * @cdat: Cached CDAT data
@@ -596,7 +595,6 @@ struct cxl_port {
 	int nr_dports;
 	int hdm_end;
 	int commit_end;
-	resource_size_t component_reg_phys;
 	bool dead;
 	unsigned int depth;
 	struct cxl_cdat {