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authorBjorn Helgaas <bjorn.helgaas@hp.com>2005-07-29 14:03:30 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-29 15:01:13 -0700
commit655a0a7799cddf9a469916c07ac22f1106abc2be (patch)
tree68046518782408b540c41645ee75ac155f3b332a
parent3d483f47579461a4715db33c68ef8752e5a97a2d (diff)
downloadlinux-bcache-655a0a7799cddf9a469916c07ac22f1106abc2be.tar.zst
[PATCH] serial: add MMIO support to 8250_pnp
Add support for UARTs in MMIO space and clean up a little whitespace. HP legacy-free ia64 machines need this. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/serial/8250_pnp.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c
index 18c58fb73899..6b321e82cafb 100644
--- a/drivers/serial/8250_pnp.c
+++ b/drivers/serial/8250_pnp.c
@@ -394,7 +394,7 @@ static int __devinit serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
}
static int __devinit
-serial_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
+serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
{
struct uart_port port;
int ret, line, flags = dev_id->driver_data;
@@ -406,15 +406,23 @@ serial_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
}
memset(&port, 0, sizeof(struct uart_port));
- port.irq = pnp_irq(dev,0);
- port.iobase = pnp_port_start(dev, 0);
+ port.irq = pnp_irq(dev, 0);
+ if (pnp_port_valid(dev, 0)) {
+ port.iobase = pnp_port_start(dev, 0);
+ port.iotype = UPIO_PORT;
+ } else if (pnp_mem_valid(dev, 0)) {
+ port.mapbase = pnp_mem_start(dev, 0);
+ port.iotype = UPIO_MEM;
+ port.flags = UPF_IOREMAP;
+ } else
+ return -ENODEV;
#ifdef SERIAL_DEBUG_PNP
- printk("Setup PNP port: port %x, irq %d, type %d\n",
- port.iobase, port.irq, port.iotype);
+ printk("Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+ port.iobase, port.mapbase, port.irq, port.iotype);
#endif
- port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
+ port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
port.uartclk = 1843200;
port.dev = &dev->dev;
@@ -426,7 +434,7 @@ serial_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
}
-static void __devexit serial_pnp_remove(struct pnp_dev * dev)
+static void __devexit serial_pnp_remove(struct pnp_dev *dev)
{
long line = (long)pnp_get_drvdata(dev);
if (line)