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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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1
CHANGES
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@@ -10,6 +10,7 @@ SVN HEAD
Integrate with systemd Integrate with systemd
Drop unreliable smart battery detection Drop unreliable smart battery detection
Add detection of SMSC EMC6W201 Add detection of SMSC EMC6W201
Drop unreliable detection of Maxim MAX6650
3.3.0 (2011-03-28) 3.3.0 (2011-03-28)
Makefile: Check for bison and flex Makefile: Check for bison and flex

33
prog/detect/sensors-detect
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@@ -847,11 +847,6 @@ use vars qw(@i2c_adapter_names);
driver => "max6639", driver => "max6639",
i2c_addrs => [0x2c, 0x2e, 0x2f], i2c_addrs => [0x2c, 0x2e, 0x2f],
i2c_detect => sub { max6639_detect(@_); }, 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", name => "Maxim MAX6655/MAX6656",
driver => "max6655", driver => "max6655",
@@ -5776,34 +5771,6 @@ sub max6639_detect
return 6; 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 sub max6655_detect
{ {
my ($file, $addr) = @_; my ($file, $addr) = @_;