hwmon: (dme1737) probe all addresses
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>
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@ -22,6 +22,10 @@ Module Parameters
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and PWM output control functions. Using this parameter
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shouldn't be required since the BIOS usually takes care
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of this.
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* probe_all_addr: bool Include non-standard LPC addresses 0x162e and 0x164e
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when probing for ISA devices. This is required for the
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following boards:
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- VIA EPIA SN18000
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Note that there is no need to use this parameter if the driver loads without
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complaining. The driver will say so if it is necessary.
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@ -48,6 +48,11 @@ static unsigned short force_id;
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module_param(force_id, ushort, 0);
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MODULE_PARM_DESC(force_id, "Override the detected device ID");
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static int probe_all_addr;
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module_param(probe_all_addr, bool, 0);
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MODULE_PARM_DESC(probe_all_addr, "Include probing of non-standard LPC "
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"addresses");
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/* Addresses to scan */
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static const unsigned short normal_i2c[] = {0x2c, 0x2d, 0x2e, I2C_CLIENT_END};
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@ -2430,7 +2435,10 @@ static int __init dme1737_init(void)
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}
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if (dme1737_isa_detect(0x2e, &addr) &&
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dme1737_isa_detect(0x4e, &addr)) {
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dme1737_isa_detect(0x4e, &addr) &&
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(!probe_all_addr ||
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(dme1737_isa_detect(0x162e, &addr) &&
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dme1737_isa_detect(0x164e, &addr)))) {
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/* Return 0 if we didn't find an ISA device */
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return 0;
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}
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