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Drop unreliable detection of Maxim MAX6650 and MAX6651.

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5970 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare
2011-05-07 07:52:59 +00:00
parent fc0ae0f506
commit 69e02824a1
2 changed files with 1 additions and 33 deletions
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33
prog/detect/sensors-detect
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@@ -847,11 +847,6 @@ use vars qw(@i2c_adapter_names);
driver => "max6639",
i2c_addrs => [0x2c, 0x2e, 0x2f],
i2c_detect => sub { max6639_detect(@_); },
}, {
name => "Maxim MAX6650/MAX6651",
driver => "max6650",
i2c_addrs => [0x1b, 0x1f, 0x48, 0x4b],
i2c_detect => sub { max6650_detect(@_); },
}, {
name => "Maxim MAX6655/MAX6656",
driver => "max6655",
@@ -5776,34 +5771,6 @@ sub max6639_detect
return 6;
}
# The max6650 has no device ID register. However, a few registers have
# spare bits, which are documented as being always zero on read. We read
# all of these registers check the spare bits. Any non-zero means this
# is not a max6650/1.
#
# The always zero bits are:
# configuration byte register (0x02) - top 2 bits
# gpio status register (0x14) - top 3 bits
# alarm enable register (0x08) - top 3 bits
# alarm status register (0x0A) - top 3 bits
# tachometer count time register (0x16) - top 6 bits
# Additionally, not all values are possible for lower 3 bits of
# the configuration register.
sub max6650_detect
{
my ($file, $addr) = @_;
my $conf = i2c_smbus_read_byte_data($file, 0x02);
return if i2c_smbus_read_byte_data($file, 0x16) & 0xFC;
return if i2c_smbus_read_byte_data($file, 0x0A) & 0xE0;
return if i2c_smbus_read_byte_data($file, 0x08) & 0xE0;
return if i2c_smbus_read_byte_data($file, 0x14) & 0xE0;
return if ($conf & 0xC0) or ($conf & 0x07) > 4;
return 2;
}
sub max6655_detect
{
my ($file, $addr) = @_;