[PATCH v2 1/4] dt-bindings: w1: document sub-node bindings for DS2760
From: Daniel Mack <daniel@zonque.org>
Date: 2018-06-28 07:56:12
Also in:
linux-pm, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest, w1 dallas's 1-wire bus · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
This patch add a generic w1 bindings document that merely describes how slave deviceses are grouped under master nodes. It also adds a specific binding for the ds2760 battery monitor. Signed-off-by: Daniel Mack <daniel@zonque.org> --- .../devicetree/bindings/w1/maxim,ds2760.txt | 15 +++++++++++++++ .../devicetree/bindings/w1/w1-gpio.txt | 6 ++++++ Documentation/devicetree/bindings/w1/w1.txt | 18 ++++++++++++++++++ 3 files changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/w1/maxim,ds2760.txt create mode 100644 Documentation/devicetree/bindings/w1/w1.txt
diff --git a/Documentation/devicetree/bindings/w1/maxim,ds2760.txt b/Documentation/devicetree/bindings/w1/maxim,ds2760.txt
new file mode 100644
index 000000000000..d916fdd213f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/w1/maxim,ds2760.txt@@ -0,0 +1,15 @@ +Devicetree bindings for Maxim DS2760 +==================================== + +The ds2760 is a w1 slave device and must hence have its sub-node in DT +under a w1 bus master node. + +The device exposes a power supply, so the details described in +Documentation/devicetree/bindings/power/supply/power_supply.txt apply. + +Required properties: +- compatible: must be "maxim,ds2760" + +Optional properties: +- power-supplies: Refers to one or more power supplies connected to + this battery.
diff --git a/Documentation/devicetree/bindings/w1/w1-gpio.txt b/Documentation/devicetree/bindings/w1/w1-gpio.txt
index 6e09c35d9f1a..6694317bcbed 100644
--- a/Documentation/devicetree/bindings/w1/w1-gpio.txt
+++ b/Documentation/devicetree/bindings/w1/w1-gpio.txt@@ -13,10 +13,16 @@ Optional properties: - linux,open-drain: if specified, the data pin is considered in open-drain mode. +Also refer to the generic w1.txt document. + Examples: onewire@0 { compatible = "w1-gpio"; gpios = <&gpio 126 0>, <&gpio 105 0>; + + battery { + compatible = "maxim,ds2760"; + }; };
diff --git a/Documentation/devicetree/bindings/w1/w1.txt b/Documentation/devicetree/bindings/w1/w1.txt
new file mode 100644
index 000000000000..6ac103f972a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/w1/w1.txt@@ -0,0 +1,18 @@ +Generic devicetree bindings for onewire (w1) busses +=================================================== + +Onewire busses are described through nodes of their master bus controller. +Slave devices are listed as sub-nodes of such master devices. For now, one +one slave is allowed per bus master. + + +Example: + + onewire { + compatible = "w1-gpio"; + gpios = <&gpio 0 GPIO_ACTIVE_HIGH>; + + battery { + compatible = "maxim,ds2760"; + }; + };
--
2.17.1