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[PATCH] hwmon: Do not forcibly enable via686a by default

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Do not enable the VIA VT82C686A/B integrated sensors by default, as
disabled sensors usually means that this feature is not used so the
values won't make any sense. This has been confusing many users in the
past:

  http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1786
  http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1811
  http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=2052

It is still possible to forcibly enable the sensors by using the
force_addr module parameter.

Signed-off-by: Jean Delvare <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

 Documentation/hwmon/via686a |   17 +++++++++++++++--
 drivers/hwmon/via686a.c     |   18 +++++++++++-------
 2 files changed, 26 insertions(+), 9 deletions(-)
This commit is contained in:
Jean Delvare 2005-09-25 16:18:49 +02:00 • committed by Greg Kroah-Hartman
commit b918ecd242
2 changed files with 26 additions and 9 deletions
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18
drivers/hwmon/via686a.c
View file

@ -589,10 +589,8 @@ static int via686a_detect(struct i2c_adapter *adapter)
u16 val;
/* 8231 requires multiple of 256, we enforce that on 686 as well */
if (force_addr)
address = force_addr & 0xFF00;
if (force_addr) {
address = force_addr & 0xFF00;
dev_warn(&adapter->dev, "forcing ISA address 0x%04X\n",
address);
if (PCIBIOS_SUCCESSFUL !=
@ -603,11 +601,17 @@ static int via686a_detect(struct i2c_adapter *adapter)
pci_read_config_word(s_bridge, VIA686A_ENABLE_REG, &val))
return -ENODEV;
if (!(val & 0x0001)) {
dev_warn(&adapter->dev, "enabling sensors\n");
if (PCIBIOS_SUCCESSFUL !=
pci_write_config_word(s_bridge, VIA686A_ENABLE_REG,
val | 0x0001))
if (force_addr) {
dev_info(&adapter->dev, "enabling sensors\n");
if (PCIBIOS_SUCCESSFUL !=
pci_write_config_word(s_bridge, VIA686A_ENABLE_REG,
val | 0x0001))
return -ENODEV;
} else {
dev_warn(&adapter->dev, "sensors disabled - enable "
"with force_addr=0x%x\n", address);
return -ENODEV;
}
}
/* Reserve the ISA region */