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authorDavid Hubbard <david.c.hubbard@gmail.com>2007-06-24 11:17:09 +0200
committerMark M. Hoffman <mhoffman@lightlink.com>2007-07-19 14:22:17 -0400
commit475ef85512900dcb87435e13656c1f5e724de379 (patch)
tree21a831861be0ae4253e75baa74b741d73a5797e5 /drivers/hwmon
parent1ea6dd3840e5a22924d78299fee018c82e425d80 (diff)
downloadop-kernel-dev-475ef85512900dcb87435e13656c1f5e724de379.zip
op-kernel-dev-475ef85512900dcb87435e13656c1f5e724de379.tar.gz
hwmon/w83627ehf: Add error messages for two error cases
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@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/w83627ehf.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 2157c34..e615b83 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1387,14 +1387,19 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
| 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);
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