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>

src/include/device/device.h

@@ -46,7 +46,7 @@ struct device_operations {
 	void (*enable_resources)(device_t dev);
 	void (*init)(device_t dev);
 	void (*final)(device_t dev);
-	unsigned int (*scan_bus)(device_t bus, unsigned int _max);
+	void (*scan_bus)(device_t bus);
 	void (*enable)(device_t dev);
 	void (*disable)(device_t dev);
 	void (*set_link)(device_t dev, unsigned int link);
@@ -224,13 +224,13 @@ void show_all_devs_resources(int debug_level, const char* msg);
 
 extern struct device_operations default_dev_ops_root;
 void pci_domain_read_resources(struct device *dev);
-unsigned int pci_domain_scan_bus(struct device *dev, unsigned int _max);
+void pci_domain_scan_bus(struct device *dev);
 
 void fixed_mem_resource(device_t dev, unsigned long index,
 		  unsigned long basek, unsigned long sizek, unsigned long type);
 
-unsigned int scan_smbus(device_t bus, unsigned int _max);
-unsigned int scan_lpc_bus(device_t bus, unsigned int _max);
+void scan_smbus(device_t bus);
+void scan_lpc_bus(device_t bus);
 
 /* It is the caller's responsibility to adjust regions such that ram_resource()
  * and mmio_resource() do not overlap.

src/include/device/hypertransport.h

@@ -5,7 +5,8 @@
 
 unsigned int hypertransport_scan_chain(struct bus *bus,
 	unsigned min_devfn, unsigned max_devfn, unsigned *ht_unit_base, unsigned offset_unitid);
-unsigned int ht_scan_bridge(struct device *dev, unsigned int max);
+void ht_scan_bridge(struct device *dev);
+
 extern struct device_operations default_ht_ops_bus;
 
 #define HT_IO_HOST_ALIGN 4096

src/include/device/pci.h

@@ -71,11 +71,11 @@ void pci_bus_enable_resources(device_t dev);
 void pci_bus_reset(struct bus *bus);
 device_t pci_probe_dev(device_t dev, struct bus *bus, unsigned devfn);
 
-unsigned int do_pci_scan_bridge(device_t bus, unsigned int max,
+void do_pci_scan_bridge(device_t bus,
 	void (*do_scan_bus)(struct bus *bus,
 		unsigned min_devfn, unsigned max_devfn));
-unsigned int pci_scan_bridge(device_t bus, unsigned int max);
 
+void pci_scan_bridge(device_t bus);
 void pci_scan_bus(struct bus *bus, unsigned min_devfn, unsigned max_devfn);
 
 uint8_t pci_moving_config8(struct device *dev, unsigned reg);

src/include/device/pciexp.h

@@ -12,7 +12,7 @@ enum aspm_type {
 void pciexp_scan_bus(struct bus *bus, unsigned int min_devfn,
 			     unsigned int max_devfn);
 
-unsigned int pciexp_scan_bridge(device_t dev, unsigned int max);
+void pciexp_scan_bridge(device_t dev);
 
 extern struct device_operations default_pciexp_ops_bus;
 

src/include/device/pcix.h

@@ -2,7 +2,8 @@
 #define DEVICE_PCIX_H
 /* (c) 2005 Linux Networx GPL see COPYING for details */
 
-unsigned int pcix_scan_bridge(device_t dev, unsigned int max);
+void pcix_scan_bridge(device_t dev);
+
 const char *pcix_speed(u16 sstatus);
 
 extern struct device_operations default_pcix_ops_bus;