Some boards are equipped with simple, GPIO-driven power load switches.
An example of such ICs is the TI tps229* series.
Add device tree bindings allowing to describe them.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
---
.../bindings/power/gpio-power-switch.txt | 25 ++++++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/gpio-power-switch.txt
diff --git a/Documentation/devicetree/bindings/power/gpio-power-switch.txt b/Documentation/devicetree/bindings/power/gpio-power-switch.txt
new file mode 100644
index 0000000..21420ed
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/gpio-power-switch.txt
@@ -0,0 +1,25 @@
+GPIO Power Switch
+-----------------
+
+This is the device tree binding for simple, GPIO-driven power load switches
+that do not have any control signals.
+
+Required properties:
+
+- compatible: must be "gpio-power-switch"
+- power-gpios: phandle for the GPIO driving the power load switch
+
+Optional properties:
+
+- power-switch-name: the name of the power switch
+- power-switch-on: the power switch GPIO is driven high by default
+
+Example
+-------
+
+acme_probe0_power_switch: gpio_power_switch@0 {
+ compatible = "gpio-power-switch";
+ power-switch-name = "acme_probe0_switch";
+ power-gpios = <&pca9535 1 GPIO_ACTIVE_HIGH>;
+ power-switch-on;
+};
--
2.9.3
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