[PATCH v3 1/4] dt-bindings: usb: Add Parade PS8830 Type-C retimer bindings

Abel Vesa
2024-10-22T10:27:15Z

Document bindings for the Parade PS8830 Type-C retimer. This retimer is
currently found on all boards featuring Qualcomm Snapdragon X Elite SoCs
and it is needed to provide altmode muxing between DP and USB, but also
connector orientation handling between.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
.../devicetree/bindings/usb/parade,ps8830.yaml | 129 +++++++++++++++++++++
1 file changed, 129 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/parade,ps8830.yaml b/Documentation/devicetree/bindings/usb/parade,ps8830.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..ee4c69eca6066e4da0373fad6c25d6e9fff83366
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/parade,ps8830.yaml
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/parade,ps8830.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Parade PS8830 USB and DisplayPort Retimer
+
+maintainers:
+ - Abel Vesa <abel.vesa@linaro.org>
+
+properties:
+ compatible:
+ enum:
+ - parade,ps8830
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: XO Clock
+
+ clock-names:
+ items:
+ - const: xo
+
+ ps8830,boot-on:
+ description: Left enabled at boot, so skip resetting
+ type: boolean
+
+ reset-gpios:
+ maxItems: 1
+
+ vdd-supply:
+ description: power supply (1.07V)
+
+ vdd33-supply:
+ description: power supply (3.3V)
+
+ vdd33-cap-supply:
+ description: power supply (3.3V)
+
+ vddar-supply:
+ description: power supply (1.07V)
+
+ vddat-supply:
+ description: power supply (1.07V)
+
+ vddio-supply:
+ description: power supply (1.2V or 1.8V)
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - reset-gpios
+ - vdd-supply
+ - vdd33-supply
+ - vdd33-cap-supply
+ - vddat-supply
+ - vddio-supply
+ - orientation-switch
+ - retimer-switch
+
+allOf:
+ - $ref: usb-switch.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ typec-mux@8 {
+ compatible = "parade,ps8830";
+ reg = <0x8>;
+
+ clocks = <&clk_rtmr_xo>;
+ clock-names = "xo";
+
+ vdd-supply = <&vreg_rtmr_1p15>;
+ vdd33-supply = <&vreg_rtmr_3p3>;
+ vdd33-cap-supply = <&vreg_rtmr_3p3>;
+ vddar-supply = <&vreg_rtmr_1p15>;
+ vddat-supply = <&vreg_rtmr_1p15>;
+ vddio-supply = <&vreg_rtmr_1p8>;
+
+ reset-gpios = <&tlmm 10 GPIO_ACTIVE_LOW>;
+
+ retimer-switch;
+ orientation-switch;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&typec_con_ss>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ endpoint {
+ remote-endpoint = <&usb_phy_ss>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ endpoint {
+ remote-endpoint = <&typec_dp_aux>;
+ };
+ };
+ };
+ };
+ };
+...

--
2.34.1