diff options
Diffstat (limited to 'Documentation/devicetree/bindings/extcon/extcon-rt8973a.txt')
-rw-r--r-- | Documentation/devicetree/bindings/extcon/extcon-rt8973a.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/extcon/extcon-rt8973a.txt b/Documentation/devicetree/bindings/extcon/extcon-rt8973a.txt new file mode 100644 index 000000000000..6dede7d11532 --- /dev/null +++ b/Documentation/devicetree/bindings/extcon/extcon-rt8973a.txt | |||
@@ -0,0 +1,25 @@ | |||
1 | |||
2 | * Richtek RT8973A - Micro USB Switch device | ||
3 | |||
4 | The Richtek RT8973A is Micro USB Switch with OVP and I2C interface. The RT8973A | ||
5 | is a USB port accessory detector and switch that is optimized to protect low | ||
6 | voltage system from abnormal high input voltage (up to 28V) and supports high | ||
7 | speed USB operation. Also, RT8973A support 'auto-configuration' mode. | ||
8 | If auto-configuration mode is enabled, RT8973A would control internal h/w patch | ||
9 | for USB D-/D+ switching. | ||
10 | |||
11 | Required properties: | ||
12 | - compatible: Should be "richtek,rt8973a-muic" | ||
13 | - reg: Specifies the I2C slave address of the MUIC block. It should be 0x14 | ||
14 | - interrupt-parent: Specifies the phandle of the interrupt controller to which | ||
15 | the interrupts from rt8973a are delivered to. | ||
16 | - interrupts: Interrupt specifiers for detection interrupt sources. | ||
17 | |||
18 | Example: | ||
19 | |||
20 | rt8973a@14 { | ||
21 | compatible = "richtek,rt8973a-muic"; | ||
22 | interrupt-parent = <&gpx1>; | ||
23 | interrupts = <5 0>; | ||
24 | reg = <0x14>; | ||
25 | }; | ||