The Parade PS8830 is a USB4, DisplayPort and Thunderbolt 4 retimer,
controlled over I2C. It usually sits between a USB/DisplayPort PHY and the
Type-C connector, and provides orientation and altmode handling.

Currently, it is found on all boards featuring the Qualcomm Snapdragon
X Elite SoCs.

Document bindings for its new driver. Future-proof the schema for the
PS8833 variant, which seems to be similar to PS8830.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
 .../devicetree/bindings/usb/parade,ps883x.yaml     | 123 +++++++++++++++++++++
 1 file changed, 123 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/parade,ps883x.yaml b/Documentation/devicetree/bindings/usb/parade,ps883x.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..4045714e487a43681336c961143b27264c081856
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/parade,ps883x.yaml
@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/parade,ps883x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Parade PS883x USB and DisplayPort Retimer
+
+maintainers:
+  - Abel Vesa <abel.vesa@linaro.org>
+
+properties:
+  compatible:
+    enum:
+      - parade,ps8830
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: XO Clock
+
+  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
+  - 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>;
+
+            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

On Fri, Nov 01, 2024 at 06:29:39PM +0200, Abel Vesa wrote:
> +$id: http://devicetree.org/schemas/usb/parade,ps883x.yaml#

Filename based on compatible, so: parade,ps8830.yaml

> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Parade PS883x USB and DisplayPort Retimer
> +
> +maintainers:
> +  - Abel Vesa <abel.vesa@linaro.org>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - parade,ps8830
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: XO Clock
> +
> +  ps8830,boot-on:

I don't see previous comments addressed/responded to.

Best regards,
Krzysztof

On 24-11-02 09:58:12, Krzysztof Kozlowski wrote:
> On Fri, Nov 01, 2024 at 06:29:39PM +0200, Abel Vesa wrote:
> > +$id: http://devicetree.org/schemas/usb/parade,ps883x.yaml#
> 
> Filename based on compatible, so: parade,ps8830.yaml
> 
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Parade PS883x USB and DisplayPort Retimer
> > +
> > +maintainers:
> > +  - Abel Vesa <abel.vesa@linaro.org>
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - parade,ps8830
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    items:
> > +      - description: XO Clock
> > +
> > +  ps8830,boot-on:
> 
> I don't see previous comments addressed/responded to.

Urgh, sorry, this should've been dropped.

Will drop it in the next version.

> 
> Best regards,
> Krzysztof
> 

Thanks for reviewing.

Abel