All of lore.kernel.org

* Re: EISA ID for PnP modem and resource allocation
From: Adam Belay @ 2004-01-26 19:22 UTC (permalink / raw)
  To: Amit Gurdasani; +Cc: linux-kernel
In-Reply-To: <Pine.LNX.4.56.0401051713370.4783@athena.localdomain>

On Mon, Jan 05, 2004 at 05:23:27PM +0400, Amit Gurdasani wrote:
> On Sun, 4 Jan 2004, Russell King wrote:
> 
> :On Mon, Dec 29, 2003 at 10:50:37PM +0000, Adam Belay wrote:
> :> > ttyS0 at I/O 0x3f8 (irq = 0) is a 16550A
> :> > ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
> :> > ttyS2 at I/O 0x3e8 (irq = 4) is a 16550A
> :> > parport0: irq 7 detected
> :>
> :> Hmm, it shouldn't be reporting irq 0.  The probbing code may be confused.
> :> I would guess it is on irq 4.
> :
> :irq0 on x86 means "I'll use polled mode".

It occured to me that we should probably check which resources the pnpbios is
reporting.  If you have a chance, could you please show me the output of this
hack.

Thanks,
Adam

--- a/drivers/serial/8250_pnp.c	2004-01-23 15:05:39.000000000 +0000
+++ b/drivers/serial/8250_pnp.c	2004-01-26 19:10:34.000000000 +0000
@@ -32,6 +32,8 @@
 
 #define UNKNOWN_DEV 0x3000
 
+#define SERIAL_DEBUG_PNP 1
+
 
 static const struct pnp_device_id pnp_dev_table[] = {
 	/* Archtek America Corp. */
@@ -402,8 +404,8 @@
 	if (HIGH_BITS_OFFSET)
 		serial_req.port = pnp_port_start(dev, 0) >> HIGH_BITS_OFFSET;
 #ifdef SERIAL_DEBUG_PNP
-	printk("Setup PNP port: port %x, irq %d, type %d\n",
-	       serial_req.port, serial_req.irq, serial_req.io_type);
+	printk("Setup PNP port: port %x, irq %d, type %d, pnp_node %x\n",
+	       serial_req.port, serial_req.irq, serial_req.io_type, dev->number);
 #endif
 
 	serial_req.flags = ASYNC_SKIP_TEST | ASYNC_AUTOPROBE;

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