The recently added support for EMC6D103S also supports EMC2300.
These two devices report exactly the same revision/stepping
register, so it's not possible to tell them apart.
EMC2300 doesn't have all the voltage inputs that EMC6D103S has,
so reports in0, in3 and in4 all as zero.
Signed-off-by: Steve Glendinning <steve.glendinning@xxxxxxxx>
---
Documentation/hwmon/lm85 | 10 +++++++++-
drivers/hwmon/lm85.c | 2 ++
2 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/Documentation/hwmon/lm85 b/Documentation/hwmon/lm85
index 7c49fea..04cc342 100644
--- a/Documentation/hwmon/lm85
+++ b/Documentation/hwmon/lm85
@@ -34,6 +34,10 @@ Supported chips:
Prefix: 'emc6d103s'
Addresses scanned: I2C 0x2c, 0x2d, 0x2e
Datasheet: http://www.smsc.com/main/catalog/emc6d103s.html
+ * SMSC EMC2300
+ Prefix: 'emc6d103s'
+ Addresses scanned: I2C 0x2c, 0x2d, 0x2e
+ Datasheet: http://www.smsc.com/media/Downloads_Public/Data_Sheets/2300.pdf
Authors:
Philip Pokorny <ppokorny@xxxxxxxxxxxxxxxxxxxx>,
@@ -47,7 +51,7 @@ Description
This driver implements support for the National Semiconductor LM85 and
compatible chips including the Analog Devices ADM1027, ADT7463, ADT7468 and
-SMSC EMC6D10x chips family.
+SMSC EMC6D10x and EMC2300 chips family.
The LM85 uses the 2-wire interface compatible with the SMBUS 2.0
specification. Using an analog to digital converter it measures three (3)
@@ -136,6 +140,10 @@ of voltage and temperature channels.
SMSC EMC6D103S is similar to EMC6D103, but does not support pwm#_auto_pwm_minctl
and temp#_auto_temp_off.
+SMSC EMC2300 is similar to EMC6D103S, with fewer voltage inputs.
+Unfortunately it is not possible to distinguish between these two on a register
+level so EMC2300's voltage inputs in0, in3 and in4 will read zero.
+
Hardware Configurations
-----------------------
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index da72dc1..4b89b70 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -1260,6 +1260,8 @@ static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
type_name = "emc6d103";
break;
case LM85_VERSTEP_EMC6D103S:
+ /* Note: this also matches EMC2300, we can't tell
+ * the difference between the two */
type_name = "emc6d103s";
break;
}
--
1.7.4.1
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