[PATCH v7 07/10] Documentation: Add sbs-manager device tree node documentation
From: Phil Reid <hidden>
Date: 2017-06-15 13:59:35
Also in:
linux-i2c, linux-pm
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
From: Karl-Heinz Schneider <redacted> This patch adds device tree documentation for the sbs-manager Signed-off-by: Karl-Heinz Schneider <redacted> Signed-off-by: Phil Reid <redacted> Acked-by: Rob Herring <robh@kernel.org> --- .../bindings/power/supply/sbs,sbs-manager.txt | 66 ++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt
diff --git a/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt b/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt
new file mode 100644
index 0000000..4b219557
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt@@ -0,0 +1,66 @@ +Binding for sbs-manager + +Required properties: +- compatible: "<vendor>,<part-number>", "sbs,sbs-charger" as fallback. The part + number compatible string might be used in order to take care of vendor + specific registers. +- reg: integer, i2c address of the device. Should be <0xa>. +Optional properties: +- gpio-controller: Marks the port as GPIO controller. + See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt. +- #gpio-cells: Should be <2>. The first cell is the pin number, the second cell + is used to specify optional parameters: + See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt. + +From OS view the device is basically an i2c-mux used to communicate with up to +four smart battery devices at address 0xb. The driver actually implements this +behaviour. So standard i2c-mux nodes can be used to register up to four slave +batteries. Channels will be numerated starting from 1 to 4. + +Example: + +batman@a { + compatible = "lltc,ltc1760", "sbs,sbs-manager"; + reg = <0x0a>; + #address-cells = <1>; + #size-cells = <0>; + + gpio-controller; + #gpio-cells = <2>; + + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + + battery@b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 1 1>; + }; + }; + + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + + battery@b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 2 1>; + }; + }; + + i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + + battery@b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 3 1>; + }; + }; +};
--
1.8.3.1