[PATCH] dt-bindings: power: New bindings for ltc3651-charger
From: Mike Looijmans <hidden>
Date: 2017-05-05 06:38:46
Also in:
linux-pm, lkml
Subsystem:
open firmware and flattened device tree bindings, power supply class/subsystem and drivers, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Sebastian Reichel, Linus Torvalds
This adds the devicetree bindings documentation for the LTC3651 battery charger. Signed-off-by: Mike Looijmans <redacted> --- .../bindings/power/supply/ltc3651-charger.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt
diff --git a/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt b/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt
new file mode 100644
index 0000000..a7dd80f
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt@@ -0,0 +1,26 @@ +ltc3651-charger + +Required properties: + - compatible: "lltc,ltc3651-charger" + - acpr-gpios: Connect to ACPR output. See remark below. + +Optional properties: + - fault-gpios: Connect to FAULT output. See remark below. + - chrg-gpios: Connect to CHRG output. See remark below. + +The ltc3651 outputs are open-drain type and active low. The driver assumes the +GPIO reports "active" when the output is asserted, so if the pins have been +connected directly, the GPIO flags should be set to active low also. + +The driver will attempt to aquire interrupts for all GPIOs. If the system is +not capabale of providing that, the driver cannot report changes and userspace +will need to periodically read the sysfs attributes to detect changes. + +Example: + + charger: battery-charger { + compatible = "lltc,ltc3651-charger"; + acpr-gpios = <&gpio0 68 GPIO_ACTIVE_LOW>; + fault-gpios = <&gpio0 64 GPIO_ACTIVE_LOW>; + chrg-gpios = <&gpio0 63 GPIO_ACTIVE_LOW>; + };
--
1.9.1