1 1
2 * Richtek RT8973A - Micro USB Switch device 2 * Richtek RT8973A - Micro USB Switch device
3 3
4 The Richtek RT8973A is Micro USB Switch with O 4 The Richtek RT8973A is Micro USB Switch with OVP and I2C interface. The RT8973A
5 is a USB port accessory detector and switch th 5 is a USB port accessory detector and switch that is optimized to protect low
6 voltage system from abnormal high input voltag 6 voltage system from abnormal high input voltage (up to 28V) and supports high
7 speed USB operation. Also, RT8973A support 'au 7 speed USB operation. Also, RT8973A support 'auto-configuration' mode.
8 If auto-configuration mode is enabled, RT8973A 8 If auto-configuration mode is enabled, RT8973A would control internal h/w patch
9 for USB D-/D+ switching. 9 for USB D-/D+ switching.
10 10
11 Required properties: 11 Required properties:
12 - compatible: Should be "richtek,rt8973a-muic" 12 - compatible: Should be "richtek,rt8973a-muic"
13 - reg: Specifies the I2C slave address of the 13 - reg: Specifies the I2C slave address of the MUIC block. It should be 0x14
14 - interrupts: Interrupt specifiers for detecti 14 - interrupts: Interrupt specifiers for detection interrupt sources.
15 15
16 Example: 16 Example:
17 17
18 rt8973a@14 { 18 rt8973a@14 {
19 compatible = "richtek,rt8973a- 19 compatible = "richtek,rt8973a-muic";
20 interrupt-parent = <&gpx1>; 20 interrupt-parent = <&gpx1>;
21 interrupts = <5 0>; 21 interrupts = <5 0>;
22 reg = <0x14>; 22 reg = <0x14>;
23 }; 23 };
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