devicetree: Change scan_bus() prototype in device ops

The input/output value max is no longer used for tracking the
bus enumeration sequence, everything is handled in the context
of devicetree bus objects.

Change-Id: I545088bd8eaf205b1436d8c52d3bc7faf4cfb0f9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8541
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 6 insertions, 18 deletions

diff --git a/src/device/root_device.c b/src/device/root_device.c
index 4eae12ac44..01852758a2 100644
--- a/src/device/root_device.c
+++ b/src/device/root_device.c
@@ -45,11 +45,9 @@ const char mainboard_name[] = CONFIG_MAINBOARD_VENDOR " " CONFIG_MAINBOARD_PART_
  * file under some static bus in order to be enumerated at run time.
  *
  * @param bus Pointer to the device to which the static buses are attached to.
- * @param max Maximum bus number currently used before scanning.
- * @return The largest bus number used.
  */
 
-static unsigned int scan_static_bus(device_t bus, unsigned int passthru)
+static void scan_static_bus(device_t bus)
 {
 	device_t child;
 	struct bus *link;
@@ -67,22 +65,18 @@ static unsigned int scan_static_bus(device_t bus, unsigned int passthru)
 			       child->enabled ? "enabled" : "disabled");
 		}
 	}
-
-	return passthru;
 }
 
-unsigned int scan_lpc_bus(device_t bus, unsigned int passthru)
+void scan_lpc_bus(device_t bus)
 {
 	printk(BIOS_SPEW, "%s for %s\n", __func__, dev_path(bus));
 
-	scan_static_bus(bus, 0);
+	scan_static_bus(bus);
 
 	printk(BIOS_SPEW, "%s for %s done\n", __func__, dev_path(bus));
-
-	return passthru;
 }
 
-unsigned int scan_smbus(device_t bus, unsigned int passthru)
+void scan_smbus(device_t bus)
 {
 	device_t child;
 	struct bus *link;
@@ -111,8 +105,6 @@ unsigned int scan_smbus(device_t bus, unsigned int passthru)
 	}
 
 	printk(BIOS_SPEW, "%s for %s done\n", __func__, dev_path(bus));
-
-	return passthru;
 }
 
 /**
@@ -121,23 +113,19 @@ unsigned int scan_smbus(device_t bus, unsigned int passthru)
  * This function is the default scan_bus() method of the root device.
  *
  * @param root The root device structure.
- * @param max The current bus number scanned so far, usually 0x00.
- * @return The largest bus number used.
  */
-static unsigned int root_dev_scan_bus(device_t bus, unsigned int passthru)
+static void root_dev_scan_bus(device_t bus)
 {
 	struct bus *link;
 
 	printk(BIOS_SPEW, "%s for %s\n", __func__, dev_path(bus));
 
-	scan_static_bus(bus, 0);
+	scan_static_bus(bus);
 
 	for (link = bus->link_list; link; link = link->next)
 		scan_bridges(link);
 
 	printk(BIOS_SPEW, "%s for %s done\n", __func__, dev_path(bus));
-
-	return passthru;
 }
 
 static void root_dev_reset(struct bus *bus)