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hwmon: (dme1737) probe all addresses

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This patch adds a module load parameter to enable probing of
non-standard LPC addresses 0x162e and 0x164e when scanning for supported
ISA chips.

Signed-Off-By: Juerg Haefliger <juergh at gmail.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This commit is contained in:
Juerg Haefliger 2008-04-03 21:34:19 -07:00 committed by Mark M. Hoffman
parent 9b257714a3
commit 92430b6feb
2 changed files with 13 additions and 1 deletions
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4
Documentation/hwmon/dme1737
View File

@ -22,6 +22,10 @@ Module Parameters
and PWM output control functions. Using this parameter
shouldn't be required since the BIOS usually takes care
of this.
* probe_all_addr: bool Include non-standard LPC addresses 0x162e and 0x164e
when probing for ISA devices. This is required for the
following boards:
- VIA EPIA SN18000
Note that there is no need to use this parameter if the driver loads without
complaining. The driver will say so if it is necessary.

10
drivers/hwmon/dme1737.c
View File

@ -48,6 +48,11 @@ static unsigned short force_id;
module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");
static int probe_all_addr;
module_param(probe_all_addr, bool, 0);
MODULE_PARM_DESC(probe_all_addr, "Include probing of non-standard LPC "
"addresses");
/* Addresses to scan */
static const unsigned short normal_i2c[] = {0x2c, 0x2d, 0x2e, I2C_CLIENT_END};
@ -2430,7 +2435,10 @@ static int __init dme1737_init(void)
}
if (dme1737_isa_detect(0x2e, &addr) &&
dme1737_isa_detect(0x4e, &addr)) {
dme1737_isa_detect(0x4e, &addr) &&
(!probe_all_addr ||
(dme1737_isa_detect(0x162e, &addr) &&
dme1737_isa_detect(0x164e, &addr)))) {
/* Return 0 if we didn't find an ISA device */
return 0;
}