[PATCH] dt-bindings: usb: document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller

[PATCH] dt-bindings: usb: document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller

[Neil Armstrong]

Document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller,
which connects over PCIe and requires specific power supplies to
start up.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
- [1] https://lore.kernel.org/all/20260220-topic-sm8650-ayaneo-pocket-s2-base-v5-1-1ad79caa1efa@linaro.org/
---
 .../bindings/usb/renesas,upd720201-pci.yaml        | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml b/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml
new file mode 100644
index 000000000000..8b8be572c930
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/renesas,upd720201-pci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: UPD720201/UPD720202 USB 3.0 xHCI Host Controller (PCIe)
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+
+description:
+  UPD720201 USB 3.0 xHCI Host Controller via PCIe x1 Gen2 interface.
+  The UPD720202 supports up to two downstream ports, while UPD720201
+  supports up to four downstream USB 3.0 rev1.0 ports.
+
+properties:
+  compatible:
+    const: pci1912,0014
+
+  reg:
+    maxItems: 1
+
+  avdd33-supply:
+    description: +3.3 V power supply for analog circuit
+
+  vdd10-supply:
+    description: +1.05 V power supply
+
+  vdd33-supply:
+    description: +3.3 V power supply
+
+required:
+  - compatible
+  - reg
+  - avdd33-supply
+  - vdd10-supply
+  - vdd33-supply
+
+allOf:
+  - $ref: usb-xhci.yaml
+
+additionalProperties: true
+
+examples:
+  - |
+    pcie@0 {
+        reg = <0x0 0x1000>;
+        ranges = <0x02000000 0x0 0x100000 0x10000000 0x0 0x0>;
+        #address-cells = <3>;
+        #size-cells = <2>;
+        device_type = "pci";
+
+        usb-controller@0 {
+            compatible = "pci1912,0014";
+            reg = <0x0 0x0 0x0 0x0 0x0>;
+            avdd33-supply = <&avdd33_reg>;
+            vdd10-supply = <&vdd10_reg>;
+            vdd33-supply = <&vdd33_reg>;
+        };
+    };

---
base-commit: 8e42d2514a7e8eb8d740d0ba82339dd6c0b6463f
change-id: 20260319-topic-sm8650-ayaneo-pocket-s2-upd-bindings-331b26d4fbf6

Best regards,
-- 
Neil Armstrong <neil.armstrong@linaro.org>

Re: [PATCH] dt-bindings: usb: document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller

[Geert Uytterhoeven]

CC Marek (for Sparrow Hawk)

On Thu, 19 Mar 2026 at 09:49, Neil Armstrong <neil.armstrong@linaro.org> wrote:
> Document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller,
> which connects over PCIe and requires specific power supplies to
> start up.
>
> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
> - [1] https://lore.kernel.org/all/20260220-topic-sm8650-ayaneo-pocket-s2-base-v5-1-1ad79caa1efa@linaro.org/
> ---
>  .../bindings/usb/renesas,upd720201-pci.yaml        | 61 ++++++++++++++++++++++
>  1 file changed, 61 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml b/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml
> new file mode 100644
> index 000000000000..8b8be572c930
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/renesas,upd720201-pci.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: UPD720201/UPD720202 USB 3.0 xHCI Host Controller (PCIe)
> +
> +maintainers:
> +  - Neil Armstrong <neil.armstrong@linaro.org>
> +
> +description:
> +  UPD720201 USB 3.0 xHCI Host Controller via PCIe x1 Gen2 interface.
> +  The UPD720202 supports up to two downstream ports, while UPD720201
> +  supports up to four downstream USB 3.0 rev1.0 ports.
> +
> +properties:
> +  compatible:
> +    const: pci1912,0014
> +
> +  reg:
> +    maxItems: 1
> +
> +  avdd33-supply:
> +    description: +3.3 V power supply for analog circuit
> +
> +  vdd10-supply:
> +    description: +1.05 V power supply
> +
> +  vdd33-supply:
> +    description: +3.3 V power supply
> +
> +required:
> +  - compatible
> +  - reg
> +  - avdd33-supply
> +  - vdd10-supply
> +  - vdd33-supply
> +
> +allOf:
> +  - $ref: usb-xhci.yaml
> +
> +additionalProperties: true
> +
> +examples:
> +  - |
> +    pcie@0 {
> +        reg = <0x0 0x1000>;
> +        ranges = <0x02000000 0x0 0x100000 0x10000000 0x0 0x0>;
> +        #address-cells = <3>;
> +        #size-cells = <2>;
> +        device_type = "pci";
> +
> +        usb-controller@0 {
> +            compatible = "pci1912,0014";
> +            reg = <0x0 0x0 0x0 0x0 0x0>;
> +            avdd33-supply = <&avdd33_reg>;
> +            vdd10-supply = <&vdd10_reg>;
> +            vdd33-supply = <&vdd33_reg>;
> +        };
> +    };
>
> ---
> base-commit: 8e42d2514a7e8eb8d740d0ba82339dd6c0b6463f
> change-id: 20260319-topic-sm8650-ayaneo-pocket-s2-upd-bindings-331b26d4fbf6
>
> Best regards,
> --
> Neil Armstrong <neil.armstrong@linaro.org>

Re: [PATCH] dt-bindings: usb: document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller

[Marek Vasut]

On 3/19/26 10:22 AM, Geert Uytterhoeven wrote:
> CC Marek (for Sparrow Hawk)

The upstream supplies to which the USB controller on SH would attach are 
not described in SH DT yet, and they are always on, so I don't think we 
need to describe the controller in SH DT yet, do we ?

> On Thu, 19 Mar 2026 at 09:49, Neil Armstrong <neil.armstrong@linaro.org> wrote:
>> Document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller,
>> which connects over PCIe and requires specific power supplies to
>> start up.
>>
>> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Re: [PATCH] dt-bindings: usb: document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller

[Neil Armstrong]

Le 21/03/2026 à 02:36, Marek Vasut a écrit :
> On 3/19/26 10:22 AM, Geert Uytterhoeven wrote:
>> CC Marek (for Sparrow Hawk)
> 
> The upstream supplies to which the USB controller on SH would attach are not described in SH DT yet, and they are always on, so I don't think we need to describe the controller in SH DT yet, do we ?

Indeed, not necessarily, describing it would be required for power control and eventually to describe usb hubs as subnodes if they also need reset and power control.

Neil

> 
>> On Thu, 19 Mar 2026 at 09:49, Neil Armstrong <neil.armstrong@linaro.org> wrote:
>>> Document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller,
>>> which connects over PCIe and requires specific power supplies to
>>> start up.
>>>
>>> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
>>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Re: [PATCH] dt-bindings: usb: document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller

[Marek Vasut]

On 3/21/26 10:26 AM, Neil Armstrong wrote:
> Le 21/03/2026 à 02:36, Marek Vasut a écrit :
>> On 3/19/26 10:22 AM, Geert Uytterhoeven wrote:
>>> CC Marek (for Sparrow Hawk)
>>
>> The upstream supplies to which the USB controller on SH would attach 
>> are not described in SH DT yet, and they are always on, so I don't 
>> think we need to describe the controller in SH DT yet, do we ?
> 
> Indeed, not necessarily, describing it would be required for power 
> control and eventually to describe usb hubs as subnodes if they also 
> need reset and power control.
ACK, thank you for clarifying !

Re: [PATCH] dt-bindings: usb: document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller

[Michal Pecio]

On Thu, 19 Mar 2026 09:49:32 +0100, Neil Armstrong wrote:
> Document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller,
> which connects over PCIe and requires specific power supplies to
> start up.
> 
> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
> - [1] https://lore.kernel.org/all/20260220-topic-sm8650-ayaneo-pocket-s2-base-v5-1-1ad79caa1efa@linaro.org/
> ---
>  .../bindings/usb/renesas,upd720201-pci.yaml        | 61 ++++++++++++++++++++++
>  1 file changed, 61 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml b/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml
> new file mode 100644
> index 000000000000..8b8be572c930
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/renesas,upd720201-pci.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: UPD720201/UPD720202 USB 3.0 xHCI Host Controller (PCIe)
> +
> +maintainers:
> +  - Neil Armstrong <neil.armstrong@linaro.org>
> +
> +description:
> +  UPD720201 USB 3.0 xHCI Host Controller via PCIe x1 Gen2 interface.
> +  The UPD720202 supports up to two downstream ports, while UPD720201
> +  supports up to four downstream USB 3.0 rev1.0 ports.
> +
> +properties:
> +  compatible:
> +    const: pci1912,0014

Hi,

AFAIK that's the ID of uPD720201, while uPD720202 is 0015.
At least that's the case with mine and what hwdata says.

Regards,
Michal

Re: [PATCH] dt-bindings: usb: document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller

[Neil Armstrong]

Le 21/03/2026 à 07:09, Michal Pecio a écrit :
> On Thu, 19 Mar 2026 09:49:32 +0100, Neil Armstrong wrote:
>> Document the Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller,
>> which connects over PCIe and requires specific power supplies to
>> start up.
>>
>> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>> ---
>> - [1] https://lore.kernel.org/all/20260220-topic-sm8650-ayaneo-pocket-s2-base-v5-1-1ad79caa1efa@linaro.org/
>> ---
>>   .../bindings/usb/renesas,upd720201-pci.yaml        | 61 ++++++++++++++++++++++
>>   1 file changed, 61 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml b/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml
>> new file mode 100644
>> index 000000000000..8b8be572c930
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/usb/renesas,upd720201-pci.yaml
>> @@ -0,0 +1,61 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/usb/renesas,upd720201-pci.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: UPD720201/UPD720202 USB 3.0 xHCI Host Controller (PCIe)
>> +
>> +maintainers:
>> +  - Neil Armstrong <neil.armstrong@linaro.org>
>> +
>> +description:
>> +  UPD720201 USB 3.0 xHCI Host Controller via PCIe x1 Gen2 interface.
>> +  The UPD720202 supports up to two downstream ports, while UPD720201
>> +  supports up to four downstream USB 3.0 rev1.0 ports.
>> +
>> +properties:
>> +  compatible:
>> +    const: pci1912,0014
> 
> Hi,
> 
> AFAIK that's the ID of uPD720201, while uPD720202 is 0015.
> At least that's the case with mine and what hwdata says.

Thanks for the feedback, I'll add 0015 aswell to cover both.

Neil

> 
> Regards,
> Michal