From: David Hubbard <david.c.hubbard at gmail.com>
If the Super-I/O device is disabled, it is likely the BIOS has a good
reason for leaving it disabled, so give a warning when enabling it --
it's not likely to be wired correctly or be able to give good data.
Also, if the Super-I/O device is configured with an address of 0, the
driver refuses to initialize it.
Signed-off-by: David Hubbard <david.c.hubbard at gmail.com>
Signed-off-by: Jean Delvare <khali at linux-fr.org>
---
drivers/hwmon/w83627ehf.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- linux-2.6.22-rc5.orig/drivers/hwmon/w83627ehf.c 2007-06-24 10:03:39.000000000 +0200
+++ linux-2.6.22-rc5/drivers/hwmon/w83627ehf.c 2007-06-24 10:06:44.000000000 +0200
@@ -1387,14 +1387,19 @@ static int __init w83627ehf_find(int sio
| superio_inb(sioaddr, SIO_REG_ADDR + 1);
*addr = val & IOREGION_ALIGNMENT;
if (*addr == 0) {
+ printk(KERN_ERR DRVNAME ": Refusing to enable a Super-I/O "
+ "device with a base I/O port 0.\n");
superio_exit(sioaddr);
return -ENODEV;
}
/* Activate logical device if needed */
val = superio_inb(sioaddr, SIO_REG_ENABLE);
- if (!(val & 0x01))
+ if (!(val & 0x01)) {
+ printk(KERN_WARNING DRVNAME ": Forcibly enabling Super-I/O. "
+ "Sensor is probably unusable.\n");
superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
+ }
superio_exit(sioaddr);
pr_info(DRVNAME ": Found %s chip at %#x\n", sio_name, *addr);
--
Jean Delvare
