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authorRobert Coulson <rob.coulson@gmail.com>2013-05-09 07:45:53 +0200
committerGuenter Roeck <linux@roeck-us.net>2013-06-27 19:28:59 +0200
commitcd6c8a4297ad036a155966db49982d6807e23ef8 (patch)
treedfdd6d11da901cd8c5d915e5f321e82aa150bc99 /Documentation/hwmon
parenthwmon: (w83627ehf) Remove redundant platform_set_drvdata() (diff)
downloadlinux-cd6c8a4297ad036a155966db49982d6807e23ef8.tar.xz
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hwmon: (ds1621) Add ds1721 chip support
Update the ds1621 documentation, driver, and Kconfig with ds1721 chip support. Signed-off-by: Robert Coulson <rob.coulson@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/ds162126
1 files changed, 20 insertions, 6 deletions
diff --git a/Documentation/hwmon/ds1621 b/Documentation/hwmon/ds1621
index 5e97f333c4df..d66f76f9d85d 100644
--- a/Documentation/hwmon/ds1621
+++ b/Documentation/hwmon/ds1621
@@ -2,16 +2,22 @@ Kernel driver ds1621
====================
Supported chips:
- * Dallas Semiconductor DS1621
+ * Dallas Semiconductor / Maxim Integrated DS1621
Prefix: 'ds1621'
Addresses scanned: I2C 0x48 - 0x4f
- Datasheet: Publicly available at the Dallas Semiconductor website
- http://www.dalsemi.com/
+ Datasheet: Publicly available from www.maximintegrated.com
+
* Dallas Semiconductor DS1625
- Prefix: 'ds1621'
+ Prefix:
+ 'ds1621' - if binding via _detect function
+ 'ds1625' - explicit instantiation
+ Addresses scanned: I2C 0x48 - 0x4f
+ Datasheet: Publicly available from www.datasheetarchive.com
+
+ * Maxim Integrated DS1721
+ Prefix: 'ds1721'
Addresses scanned: I2C 0x48 - 0x4f
- Datasheet: Publicly available at the Dallas Semiconductor website
- http://www.dalsemi.com/
+ Datasheet: Publicly available from www.maximintegrated.com
Authors:
Christian W. Zuckschwerdt <zany@triq.net>
@@ -61,3 +67,11 @@ with neither of the alarms set.
Temperature conversion of the DS1621 takes up to 1000ms; internal access to
non-volatile registers may last for 10ms or below.
+
+The DS1625 is pin compatible and functionally equivalent with the DS1621,
+but the DS1621 is meant to replace it.
+
+The DS1721 is pin compatible with the DS1621, has an accuracy of +/- 1.0
+degree Celsius over a -10 to +85 degree range, a minimum/maximum alarm
+default setting of 75 and 80 degrees respectively, and a maximum conversion
+time of 750ms.