• Olaf Hering's avatar
    [PATCH] restore parport_pc probing on powermac · 873ef76b
    Olaf Hering authored
    The last change for partport_pc did fix the common case for all PowerMacs,
    but it broke the case for PCI multiport IO cards.  In fact, the config
    option CONFIG_PARPORT_PC_SUPERIO=y lead to a hard crash when cups probed
    the parport driver.  It enables the winbond and smsc probing.
    
    Remove the PARPORT_BASE check again, parport_pc_find_nonpci_ports() will
    take care of it.  All powerpc configs should have
    CONFIG_PARPORT_PC_SUPERIO=n, the code did not find anything on the chrp
    boards we tested it on.
    
    Tested on a G4/466 with a PCI card:
    
    0001:10:13.0 Serial controller: Timedia Technology Co Ltd PCI2S550 (Dual 16550 UART) (rev 01) (prog-if 02 [16550])
            Subsystem: Timedia Technology Co Ltd Unknown device 5079
            Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
            Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
            Interrupt: pin A routed to IRQ 53
            Region 0: I/O ports at f2000800 [size=32]
            Region 2: I/O ports at f2000870 [size=8]
            Region 3: I/O ports at f2000860 [size=8]
    Signed-off-by: default avatarOlaf Hering <olaf@aepfle.de>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Adam Belay <ambx1@neo.rr.com>
    Cc: Dmitry Torokhov <dtor@mail.ru>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    873ef76b
io.h 14.4 KB