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:
+ - $ref: usb-switch.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ typec-mux@8 {
+ compatible = "parade,ps8830";
+ reg = <0x8>;
+
+ clocks = <&clk_rtmr_xo>;
+ clock-names = "xo";
+
+ vdd-supply = <&vreg_rtmr_1p15>;
+ vdd33-supply = <&vreg_rtmr_3p3>;
+ vdd33-cap-supply = <&vreg_rtmr_3p3>;
+ vddar-supply = <&vreg_rtmr_1p15>;
+ vddat-supply = <&vreg_rtmr_1p15>;
+ vddio-supply = <&vreg_rtmr_1p8>;
+
+ reset-gpios = <&tlmm 10 GPIO_ACTIVE_LOW>;
+
+ retimer-switch;
+ orientation-switch;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&typec_con_ss>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ endpoint {
+ remote-endpoint = <&usb_phy_ss>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ endpoint {
+ remote-endpoint = <&typec_dp_aux>;
+ };
+ };
+ };
+ };
+ };
+...
--
2.34.1On Tue, Oct 22, 2024 at 01:26:54PM GMT, Abel Vesa wrote:
> Document bindings for the Parade PS8830 Type-C retimer. This retimer is
> currently found on all boards featuring Qualcomm Snapdragon X Elite SoCs
> and it is needed to provide altmode muxing between DP and USB, but also
> connector orientation handling between.
This sentence ends a bit weird to me, please polish it (although
preferably, rewrite it according to "describe your changes")
>
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
> .../devicetree/bindings/usb/parade,ps8830.yaml | 129 +++++++++++++++++++++
> 1 file changed, 129 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/usb/parade,ps8830.yaml b/Documentation/devicetree/bindings/usb/parade,ps8830.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..ee4c69eca6066e4da0373fad6c25d6e9fff83366
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/parade,ps8830.yaml
> @@ -0,0 +1,129 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$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
Don't know if the guidelines has changed on this, but for a single clock
we used to omit clock-names, as it doesn't add any/much value.
Regards,
Bjorn
> +
> + 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:
> + - $ref: usb-switch.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + typec-mux@8 {
> + compatible = "parade,ps8830";
> + reg = <0x8>;
> +
> + clocks = <&clk_rtmr_xo>;
> + clock-names = "xo";
> +
> + vdd-supply = <&vreg_rtmr_1p15>;
> + vdd33-supply = <&vreg_rtmr_3p3>;
> + vdd33-cap-supply = <&vreg_rtmr_3p3>;
> + vddar-supply = <&vreg_rtmr_1p15>;
> + vddat-supply = <&vreg_rtmr_1p15>;
> + vddio-supply = <&vreg_rtmr_1p8>;
> +
> + reset-gpios = <&tlmm 10 GPIO_ACTIVE_LOW>;
> +
> + retimer-switch;
> + orientation-switch;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + endpoint {
> + remote-endpoint = <&typec_con_ss>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + endpoint {
> + remote-endpoint = <&usb_phy_ss>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> +
> + endpoint {
> + remote-endpoint = <&typec_dp_aux>;
> + };
> + };
> + };
> + };
> + };
> +...
>
> --
> 2.34.1
>
On Tue, Oct 22, 2024 at 01:26:54PM +0300, Abel Vesa wrote: > Document bindings for the Parade PS8830 Type-C retimer. This retimer is > currently found on all boards featuring Qualcomm Snapdragon X Elite SoCs > and it is needed to provide altmode muxing between DP and USB, but also > connector orientation handling between. > > Signed-off-by: Abel Vesa <abel.vesa@linaro.org> > --- > .../devicetree/bindings/usb/parade,ps8830.yaml | 129 +++++++++++++++++++++ > 1 file changed, 129 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/parade,ps8830.yaml b/Documentation/devicetree/bindings/usb/parade,ps8830.yaml > new file mode 100644 > index 0000000000000000000000000000000000000000..ee4c69eca6066e4da0373fad6c25d6e9fff83366 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/parade,ps8830.yaml > @@ -0,0 +1,129 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$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: The prefix here should be the vendor, not the model. How come whether or not it is enabled at boot cannot be detected at runtime?
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