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SubjectRe: 2.6.22-rc: regression: no irda0 interface (2.6.21 was OK), smsc does not find chip
(Adding Linus Walleij, who wrote part of the smsc driver, to Cc:)

On Mon, Jun 04, 2007 at 06:33:56AM +0400, Andrey Borzenkov wrote:
> On Monday 04 June 2007, Samuel Ortiz wrote:
> > It seems that PnP tells us that the FIR port is at 0x2e8 while we're
> > expecting it at 0x2f8.
> > Could you apply this patch and then send me a dmesg dump of the
> > smsc-ircc initialisation ?
> >
>
> here is dmesg:
>
> 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_pnp_probe(): fir 0x2e8 sir 0x100 dma 1 irq 5
Ok, FIR and SIR are definitey mixed up. So, now could you please try Bjorn's
patch ? I wonder if the curent code (without PnP) enables 0x2f8 as the SIR
port through the preconfiguration code...

Cheers,
Samuel.


> High: 0xef, Chip 0x1
> smsc_ircc_present(), addr 0x02e8 - no device found!
> pnp: Device 00:0a disabled.
>
> And here is what PnP tells us:
> {pts/1}% cat /sys/bus/pnp/devices/00:0a/options
> port 0x100-0x130, align 0xf, size 0x8, 16-bit address decoding
> irq 3,4,5,6,7,10,11 High-Edge
> dma 1,2,3 16-bit compatible
> Dependent: 01 - Priority acceptable
> port 0x3f8-0x3f8, align 0x0, size 0x8, 16-bit address decoding
> Dependent: 02 - Priority acceptable
> port 0x2e8-0x2e8, align 0x0, size 0x8, 16-bit address decoding
> Dependent: 03 - Priority acceptable
> port 0x2f8-0x2f8, align 0x0, size 0x8, 16-bit address decoding
> Dependent: 04 - Priority acceptable
> port 0x3e8-0x3e8, align 0x0, size 0x8, 16-bit address decoding
> {pts/1}% cat /sys/bus/pnp/devices/00:0a/resources
> state = disabled
> {pts/1}% sudo sh -c 'echo activate > /sys/bus/pnp/devices/00:0a/resources'
> {pts/1}% cat /sys/bus/pnp/devices/00:0a/resources
> state = active
> io 0x100-0x107
> io 0x2e8-0x2ef
> irq 5
> dma 1
>
> -andrey
>
> > Cheers,
> > Samuel.
> >
> >
> > diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
> > index 9043bf4..d1d46a6 100644
> > --- a/drivers/net/irda/smsc-ircc2.c
> > +++ b/drivers/net/irda/smsc-ircc2.c
> > @@ -391,6 +391,9 @@ static int __init smsc_ircc_pnp_probe(struct pnp_dev
> > *dev, dma = pnp_dma(dev, 0);
> > irq = pnp_irq(dev, 0);
> >
> > + printk("%s(): fir 0x%x sir 0x%x dma %d irq %d\n",
> > + __FUNCTION__, firbase, sirbase, dma, irq);
> > +
> > if (smsc_ircc_open(firbase, sirbase, dma, irq))
> > return -ENODEV;
> >
> > @@ -655,6 +658,7 @@ static int smsc_ircc_present(unsigned int fir_base,
> > unsigned int sir_base) irq = (config & IRCC_INTERFACE_IRQ_MASK) >> 4;
> >
> > if (high != 0x10 || low != 0xb8 || (chip != 0xf1 && chip != 0xf2)) {
> > + printk("High: 0x%x, Chip 0x%x\n", high, chip);
> > IRDA_WARNING("%s(), addr 0x%04x - no device found!\n",
> > __FUNCTION__, fir_base);
> > goto out3;
>
>


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