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PNP: remove SMCf010 quirk

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If the quirk enables the SIR part of the SMCf010 device, the 8250 driver
may claim it as a legacy ttyS device, which makes the legacy probe in the
smsc-ircc2 driver fail.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Andrey Borzenkov <arvidjaar@mail.ru>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Bjorn Helgaas
2007-09-11 15:23:35 -07:00
committed by Linus Torvalds
parent 719b6f29fc
commit b70ae1d9f6
1 changed files with 0 additions and 103 deletions
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103
drivers/pnp/quirks.c
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@@ -107,108 +107,6 @@ static void quirk_sb16audio_resources(struct pnp_dev *dev)
"pnp: SB audio device quirk - increasing port range\n"); "pnp: SB audio device quirk - increasing port range\n");
} }
static int quirk_smc_fir_enabled(struct pnp_dev *dev)
{
unsigned long firbase;
u8 bank, high, low, chip;
if (!pnp_port_valid(dev, 1))
return 0;
firbase = pnp_port_start(dev, 1);
/* Select register bank 3 */
bank = inb(firbase + 7);
bank &= 0xf0;
bank |= 3;
outb(bank, firbase + 7);
high = inb(firbase + 0);
low = inb(firbase + 1);
chip = inb(firbase + 2);
/* This corresponds to the check in smsc_ircc_present() */
if (high == 0x10 && low == 0xb8 && (chip == 0xf1 || chip == 0xf2))
return 1;
return 0;
}
static void quirk_smc_enable(struct pnp_dev *dev)
{
struct resource fir, sir, irq;
pnp_activate_dev(dev);
if (quirk_smc_fir_enabled(dev))
return;
/*
* Sometimes the BIOS claims the device is enabled, but it reports
* the wrong FIR resources or doesn't properly configure ISA or LPC
* bridges on the way to the device.
*
* HP nc6000 and nc8000/nw8000 laptops have known problems like
* this. Fortunately, they do fix things up if we auto-configure
* the device using its _PRS and _SRS methods.
*/
dev_err(&dev->dev, "%s not responding at SIR 0x%lx, FIR 0x%lx; "
"auto-configuring\n", dev->id->id,
(unsigned long)pnp_port_start(dev, 0),
(unsigned long)pnp_port_start(dev, 1));
pnp_disable_dev(dev);
pnp_init_resource_table(&dev->res);
pnp_auto_config_dev(dev);
pnp_activate_dev(dev);
if (quirk_smc_fir_enabled(dev)) {
dev_err(&dev->dev, "responds at SIR 0x%lx, FIR 0x%lx\n",
(unsigned long)pnp_port_start(dev, 0),
(unsigned long)pnp_port_start(dev, 1));
return;
}
/*
* The Toshiba Portege 4000 _CRS reports the FIR region first,
* followed by the SIR region. The BIOS will configure the bridge,
* but only if we call _SRS with SIR first, then FIR. It also
* reports the IRQ as active high, when it is really active low.
*/
dev_err(&dev->dev, "not responding at SIR 0x%lx, FIR 0x%lx; "
"swapping SIR/FIR and reconfiguring\n",
(unsigned long)pnp_port_start(dev, 0),
(unsigned long)pnp_port_start(dev, 1));
/*
* Clear IORESOURCE_AUTO so pnp_activate_dev() doesn't reassign
* these resources any more.
*/
fir = dev->res.port_resource[0];
sir = dev->res.port_resource[1];
fir.flags &= ~IORESOURCE_AUTO;
sir.flags &= ~IORESOURCE_AUTO;
irq = dev->res.irq_resource[0];
irq.flags &= ~IORESOURCE_AUTO;
irq.flags &= ~IORESOURCE_BITS;
irq.flags |= IORESOURCE_IRQ_LOWEDGE;
pnp_disable_dev(dev);
dev->res.port_resource[0] = sir;
dev->res.port_resource[1] = fir;
dev->res.irq_resource[0] = irq;
pnp_activate_dev(dev);
if (quirk_smc_fir_enabled(dev)) {
dev_err(&dev->dev, "responds at SIR 0x%lx, FIR 0x%lx\n",
(unsigned long)pnp_port_start(dev, 0),
(unsigned long)pnp_port_start(dev, 1));
return;
}
dev_err(&dev->dev, "giving up; try \"smsc-ircc2.nopnp\" and "
"email bjorn.helgaas@hp.com\n");
}
/* /*
* PnP Quirks * PnP Quirks
* Cards or devices that need some tweaking due to incomplete resource info * Cards or devices that need some tweaking due to incomplete resource info
@@ -229,7 +127,6 @@ static struct pnp_fixup pnp_fixups[] = {
{"CTL0043", quirk_sb16audio_resources}, {"CTL0043", quirk_sb16audio_resources},
{"CTL0044", quirk_sb16audio_resources}, {"CTL0044", quirk_sb16audio_resources},
{"CTL0045", quirk_sb16audio_resources}, {"CTL0045", quirk_sb16audio_resources},
{"SMCf010", quirk_smc_enable},
{""} {""}
}; };