Messages in this thread | | | Date | Wed, 21 Mar 2007 16:37:58 +0000 | From | Russell King <> | Subject | Re: PNPACPI probes serial twice, messes up serial console |
| |
On Wed, Mar 21, 2007 at 10:35:38AM -0600, Bjorn Helgaas wrote: > On Tuesday 20 March 2007 08:32, Bjorn Helgaas wrote: > > On Tuesday 20 March 2007 00:46, Keith Owens wrote: > > > Booting with 'console=tty console=ttyS0,9600'. The serial console on > > > ttyS0 (0x3f8, irq 4) is probed twice, once from serial8250_init() and > > > again from serial_pnp_probe(). > > > > I played with this last summer, but was too timid to finish it > > and post it. My plan was to remove the legacy SERIAL_PORT_DFNS, > > make platform devices for them, and only register the platform > > devices in the absence of PNP. > > > > My motivation at the time was to prevent 8250 from claiming IRDA > > devices that happened to live at legacy UART addresses. I also > > wanted to make IRDA (smsc-ircc2 in my case) smart enough to use > > PNP to locate its devices, since 8250 would no longer claim them. > > > > Here's the dusty patch (against 2.6.18-rc1-mm2). If it seems > > like a reasonable thing to do, I can update it, polish it up, > > add a changelog, and post it. > > Keith, does this patch help? Russell didn't complain about it, so > if it fixes your problem, maybe we could put it in -mm and see if > it breaks anything else.
Yes I did.
-- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |