diff options
| author | Ladislav Michl <ladis@linux-mips.org> | 2017-07-16 11:34:00 +0200 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2017-07-25 12:10:52 +0200 |
| commit | a65df832f96588debbbdd93d392a4ff77d5d237c (patch) | |
| tree | 7d0d646d71008c39abfd19f55d8fbd68852ac1d8 /Documentation/devicetree/bindings/power | |
| parent | power: supply: ltc2941-battery-gauge: Prepare for LTC2942 and LTC2944 (diff) | |
| download | linux-a65df832f96588debbbdd93d392a4ff77d5d237c.tar.xz linux-a65df832f96588debbbdd93d392a4ff77d5d237c.zip | |
power: supply: ltc2941-battery-gauge: Add LTC2942 support
LTC2942 is pin compatible with LTC2941 providing additional
informations about battery voltage and temperature. It can
be runtime detected using bit A7 in the Status register.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Dragos Bogdan <dragos.bogdan@analog.com>
Tested-by: Dragos Bogdan <dragos.bogdan@analog.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Diffstat (limited to 'Documentation/devicetree/bindings/power')
| -rw-r--r-- | Documentation/devicetree/bindings/power/supply/ltc2941.txt | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/power/supply/ltc2941.txt b/Documentation/devicetree/bindings/power/supply/ltc2941.txt index a9d7aa60558b..8ec10366295d 100644 --- a/Documentation/devicetree/bindings/power/supply/ltc2941.txt +++ b/Documentation/devicetree/bindings/power/supply/ltc2941.txt @@ -1,13 +1,14 @@ -binding for LTC2941 and LTC2943 battery gauges +binding for LTC2941, LTC2942 and LTC2943 battery gauges -Both the LTC2941 and LTC2943 measure battery capacity. -The LTC2943 is compatible with the LTC2941, it adds voltage and -temperature monitoring, and uses a slightly different conversion -formula for the charge counter. +All chips measure battery capacity. +The LTC2942 is pin compatible with the LTC2941, it adds voltage and +temperature monitoring, and is runtime detected. LTC2943 is software +compatible, uses a slightly different conversion formula for the +charge counter and adds voltage, current and temperature monitoring. Required properties: -- compatible: Should contain "lltc,ltc2941" or "lltc,ltc2943" which also - indicates the type of I2C chip attached. +- compatible: Should contain "lltc,ltc2941", "lltc,ltc2942" or "lltc,ltc2943" + which also indicates the type of I2C chip attached. - reg: The 7-bit I2C address. - lltc,resistor-sense: The sense resistor value in milli-ohms. Can be a 32-bit negative value when the battery has been connected to the wrong end of the |