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

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Message-Id: <200708112239.37475.arvidjaar@mail.ru>
Date:	Sat, 11 Aug 2007 22:39:35 +0400
From:	Andrey Borzenkov <arvidjaar@...l.ru>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Samuel Ortiz <samuel@...tiz.org>,
	"Linus Walleij (LD/EAB)" <linus.walleij@...csson.com>,
	linux-kernel@...r.kernel.org,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	ambx1@....rr.com, linux-pcmcia@...ts.infradead.org
Subject: Re: 2.6.22-rc: regression: no irda0 interface (2.6.21 was OK), smsc does not find chip

On Saturday 30 June 2007, Bjorn Helgaas wrote:
> On Saturday 30 June 2007 01:16:18 am Andrey Borzenkov wrote:
> > > This patch fixes the 2.6.22 regression:
> > >     "no irda0 interface (2.6.21 was OK), smsc does not find chip"
> >
> > does not work, sorry.
>
> Sigh ;-)  Thanks for your patience in dealing with this.
>

This stopped working again in 2.6.23-rc. In 2.6.22 we decided to disable PnP 
by default; it is apparently enabled now and fails to activte IrDA 
completely. So it moves to post-2.6.22 regressions :)

let me know which information you need

[ 2192.666450] pnp: PnP ACPI init
[ 2192.666589] ACPI: bus type pnp registered
[ 2192.686035] pnp: Device 00:0a activated.
[ 2192.686089]  00:0a: SMCf010 not responding at SIR 0x100, FIR 0x2e8; 
auto-configuring
[ 2192.687610] pnp: Device 00:0a disabled.
[ 2192.693179] pnp: Device 00:0a activated.
[ 2192.693210]  00:0a: not responding at SIR 0x100, FIR 0x2e8; swapping 
SIR/FIR and reconfiguring
[ 2192.694720] pnp: Device 00:0a disabled.
[ 2192.701232] pnp: Device 00:0a activated.
[ 2192.701259]  00:0a: responds at SIR 0x2e8, FIR 0x100
[ 2192.709309] pnp: PnP ACPI: found 12 devices
[ 2192.709351] ACPI: ACPI bus type pnp unregistered

....

[ 2207.986550] Detected unconfigured Toshiba laptop with ALi ISA bridge SMSC 
IrDA chip, pre-configuring device.
[ 2207.986587] Activated ALi 1533 ISA bridge port 0x02e8.
[ 2207.986602] Activated ALi 1533 ISA bridge port 0x02f8.
[ 2207.986817] found SMC SuperIO Chip (devid=0x5a rev=00 base=0x002e): 
LPC47N227
[ 2207.986851] smsc_superio_flat(): fir: 0x2f8, sir: 0x2e8, dma: 03, irq: 7, 
mode: 0x0e
[ 2207.986873] smsc_ircc_present: can't get sir_base of 0x2e8



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