diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pnp/quirks.c | 63 |
1 files changed, 54 insertions, 9 deletions
diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c index 967a8e22b2d..7c3236690cc 100644 --- a/drivers/pnp/quirks.c +++ b/drivers/pnp/quirks.c @@ -136,11 +136,10 @@ static int quirk_smc_fir_enabled(struct pnp_dev *dev) static void quirk_smc_enable(struct pnp_dev *dev) { - /* - * If the BIOS left the device disabled, or it is enabled and - * responding correctly, we're in good shape. - */ - if (!dev->active || quirk_smc_fir_enabled(dev)) + struct resource fir, sir, irq; + + pnp_activate_dev(dev); + if (quirk_smc_fir_enabled(dev)) return; /* @@ -152,16 +151,62 @@ static void quirk_smc_enable(struct pnp_dev *dev) * this. Fortunately, they do fix things up if we auto-configure * the device using its _PRS and _SRS methods. */ - dev_err(&dev->dev, "%s device not responding, auto-configuring " - "resources\n", dev->id->id); + 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; + } - if (!quirk_smc_fir_enabled(dev)) - dev_err(&dev->dev, "giving up; try \"smsc-ircc2.nopnp\"\n"); + dev_err(&dev->dev, "giving up; try \"smsc-ircc2.nopnp\" and " + "email bjorn.helgaas@hp.com\n"); } |