linux-kernel - 2.6.22-rc: regression: no irda0 interface (2.6.21 was OK), smsc does not find chip

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Message-Id: <200706031200.07514.arvidjaar@mail.ru>
Date:	Sun, 3 Jun 2007 12:00:06 +0400
From:	Andrey Borzenkov <arvidjaar@...l.ru>
To:	samuel@...tiz.org
Cc:	linux-kernel@...r.kernel.org,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	ambx1@....rr.com
Subject: 2.6.22-rc: regression: no irda0 interface (2.6.21 was OK), smsc does not find chip

Under 2.6.22-rc I lost irda0 interface - smsc claims no device present. 
Nothing was changed in setup except kernel version.

2.6.21:

Detected unconfigured Toshiba laptop with ALi ISA bridge SMSC IrDA chip, 
pre-configuring device.
Activated ALi 1533 ISA bridge port 0x02e8.
Activated ALi 1533 ISA bridge port 0x02f8.
found SMC SuperIO Chip (devid=0x5a rev=00 base=0x002e): LPC47N227
smsc_superio_flat(): IrDA not enabled
smsc_superio_flat(): fir: 0x2f8, sir: 0x2e8, dma: 03, irq: 7, mode: 0x02
SMsC IrDA Controller found
 IrCC version 2.0, firport 0x2f8, sirport 0x2e8 dma=3, irq=7
No transceiver found. Defaulting to Fast pin select
IrDA: Registered device irda0

2.6.22-rc3:
Detected unconfigured Toshiba laptop with ALi ISA bridge SMSC IrDA chip, 
pre-configuring device.
Activated ALi 1533 ISA bridge port 0x02e8.
Activated ALi 1533 ISA bridge port 0x02f8.
pnp: Device 00:0a activated.
smsc_ircc_present(), addr 0x02e8 - no device found!
pnp: Device 00:0a disabled.

I Cc Adam because of pnp messages in this case - they were not present in 
2.6.21 so something is being done differently now.

Some more info:

{pts/1}% cat /sys/bus/pnp/devices/00:0a/id
SMCf010
{pts/1}% lspci -nn
00:00.0 Host bridge [0600]: ALi Corporation M1644/M1644T Northbridge+Trident 
[10b9:1644] (rev 01)
00:01.0 PCI bridge [0604]: ALi Corporation PCI to AGP Controller [10b9:5247]
00:02.0 USB Controller [0c03]: ALi Corporation USB 1.1 Controller [10b9:5237] 
(rev 03)
00:04.0 IDE interface [0101]: ALi Corporation M5229 IDE [10b9:5229] (rev c3)
00:06.0 Multimedia audio controller [0401]: ALi Corporation M5451 PCI AC-Link 
Controller Audio Device [10b9:5451] (rev 01)
00:07.0 ISA bridge [0601]: ALi Corporation M1533/M1535 PCI to ISA Bridge 
[Aladdin IV/V/V+] [10b9:1533]
00:08.0 Bridge [0680]: ALi Corporation M7101 Power Management Controller [PMU] 
[10b9:7101]
00:0a.0 Ethernet controller [0200]: Intel Corporation 82557/8/9 [Ethernet Pro 
100] [8086:1229] (rev 08)
00:10.0 CardBus bridge [0607]: Texas Instruments PCI1410 PC card Cardbus 
Controller [104c:ac50] (rev 01)
00:11.0 CardBus bridge [0607]: Toshiba America Info Systems ToPIC100 PCI to 
Cardbus Bridge with ZV Support [1179:0617] (rev 32)
00:11.1 CardBus bridge [0607]: Toshiba America Info Systems ToPIC100 PCI to 
Cardbus Bridge with ZV Support [1179:0617] (rev 32)
00:12.0 System peripheral [0880]: Toshiba America Info Systems SD TypA 
Controller [1179:0805] (rev 03)
01:00.0 VGA compatible controller [0300]: Trident Microsystems CyberBlade 
XPAi1 [1023:8820] (rev 82)

config from 2.6.22-rc3 attached.

-andrey

View attachment ".config" of type "text/plain" (50461 bytes)

Download attachment "signature.asc " of type "application/pgp-signature" (190 bytes)