ssb: PCI revision ID register is 8-bit wide

The SSB code reads PCI revision ID register as 16-bit entity while the register
is actually 8-bit only (the next 8 bits are the programming interface register).
Fix the read and make the 'rev' field of 'struct ssb_boardinfo' 8-bit as well,
to match the register size.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/ssb/pci.c

@@ -738,7 +738,7 @@ static void ssb_pci_get_boardinfo(struct ssb_bus *bus,
 			     &bi->vendor);
 	pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_ID,
 			     &bi->type);
-	pci_read_config_word(bus->host_pci, PCI_REVISION_ID,
+	pci_read_config_byte(bus->host_pci, PCI_REVISION_ID,
 			     &bi->rev);
 }
 

include/linux/ssb/ssb.h

@@ -99,7 +99,7 @@ struct ssb_sprom {
 struct ssb_boardinfo {
 	u16 vendor;
 	u16 type;
-	u16 rev;
+	u8  rev;
 };