[PATCH 0/3] usb: misc: Add Terminus FE1.1 USB2.0 Hub support

[PATCH 0/3] usb: misc: Add Terminus FE1.1 USB2.0 Hub support

[Yixun Lan]

This series try to add support for Terminus FE1.1 USB2.0 Hub.

The FE1.1 Hub provide interesting choice of selecting power supply from
either 3.3V or 5V, if need to use integrated 5V to 3.3v regulator, the 5V
supply should be used. Otherwise, 5V pin can be set to NO-Connection,
and use the 3.3v external supply source.

Link: https://terminus-usa.com/wp-content/uploads/2024/06/FE1.1s-Product-Brief-Rev.-2.0-2023.pdf [1]
Signed-off-by: Yixun Lan <dlan@kernel.org>
---
Yixun Lan (3):
      dt-bindings: vendor-prefixes: Add Terminus
      dt-bindings: usb: Add support for Terminus FE1.1s USB2.0 Hub controller
      usb: misc: onboard_usb_dev: Add Terminus FE1.1s USB2.0 Hub (1a40:0101)

 .../devicetree/bindings/usb/terminus,fe11.yaml     | 61 ++++++++++++++++++++++
 .../devicetree/bindings/vendor-prefixes.yaml       |  2 +
 drivers/usb/misc/onboard_usb_dev.c                 |  2 +
 drivers/usb/misc/onboard_usb_dev.h                 |  8 +++
 4 files changed, 73 insertions(+)
---
base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
change-id: 20260317-03-usb-hub-fe1-356aea478a5b

Best regards,
-- 
Yixun Lan <dlan@kernel.org>

[PATCH 1/3] dt-bindings: vendor-prefixes: Add Terminus

[Yixun Lan]

Terminus is a Taiwanese fabless chip company specialized in high-speed
serial-bus based, IC products for PC peripheral, consumer electronics.

Signed-off-by: Yixun Lan <dlan@kernel.org>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index ee7fd3cfe203..cd2df06cdc1f 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -1648,6 +1648,8 @@ patternProperties:
     description: Tenstorrent AI ULC
   "^terasic,.*":
     description: Terasic Inc.
+  "^terminus,.*":
+    description: Terminus Technology Inc.
   "^tesla,.*":
     description: Tesla, Inc.
   "^test,.*":

-- 
2.53.0

Re: [PATCH 1/3] dt-bindings: vendor-prefixes: Add Terminus

[Krzysztof Kozlowski]

On Tue, Mar 17, 2026 at 08:55:02AM +0000, Yixun Lan wrote:
> Terminus is a Taiwanese fabless chip company specialized in high-speed
> serial-bus based, IC products for PC peripheral, consumer electronics.
> 
> Signed-off-by: Yixun Lan <dlan@kernel.org>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
>  1 file changed, 2 insertions(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

[PATCH 2/3] dt-bindings: usb: Add support for Terminus FE1.1s USB2.0 Hub controller

[Yixun Lan]

Terminus FE1.1s is USB2.0 protocol compliant 4-port USB HUB, It support
MTT (Multiple Transaction Translator) mode, the upstream port supports
high-speed 480MHz and full-speed 12MHz modes, also has integrated 5V to
3.3V, 1.8V regulator and Power-On-Reset circuit.

Introduce the DT binding for it.

Link: https://terminus-usa.com/wp-content/uploads/2024/06/FE1.1s-Product-Brief-Rev.-2.0-2023.pdf [1]
Signed-off-by: Yixun Lan <dlan@kernel.org>
---
 .../devicetree/bindings/usb/terminus,fe11.yaml     | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/terminus,fe11.yaml b/Documentation/devicetree/bindings/usb/terminus,fe11.yaml
new file mode 100644
index 000000000000..93bb4066f851
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/terminus,fe11.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/terminus,fe11.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Terminus FE1.1/1.1S USB 2.0 Hub Controller
+
+maintainers:
+  - Yixun Lan <dlan@kernel.org>
+
+allOf:
+  - $ref: usb-hub.yaml#
+
+properties:
+  compatible:
+    enum:
+      - usb1a40,0101
+
+  reg: true
+
+  reset-gpios:
+    description:
+      GPIO controlling the RESET#, but the reset line can be optional.
+
+  vdd-supply:
+    description:
+      Regulator supply to the hub, one of 3.3V or 5V can be chosen.
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    patternProperties:
+      '^port@':
+        $ref: /schemas/graph.yaml#/properties/port
+
+        properties:
+          reg:
+            minimum: 1
+            maximum: 4
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    usb {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        hub: hub@1 {
+            compatible = "usb1a40,0101";
+            reg = <1>;
+            reset-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+            vdd-supply = <&vcc_5v>;
+        };
+    };

-- 
2.53.0

Re: [PATCH 2/3] dt-bindings: usb: Add support for Terminus FE1.1s USB2.0 Hub controller

[Krzysztof Kozlowski]

On Tue, Mar 17, 2026 at 08:55:03AM +0000, Yixun Lan wrote:
> Terminus FE1.1s is USB2.0 protocol compliant 4-port USB HUB, It support
> MTT (Multiple Transaction Translator) mode, the upstream port supports
> high-speed 480MHz and full-speed 12MHz modes, also has integrated 5V to
> 3.3V, 1.8V regulator and Power-On-Reset circuit.
> 
> Introduce the DT binding for it.
> 
> Link: https://terminus-usa.com/wp-content/uploads/2024/06/FE1.1s-Product-Brief-Rev.-2.0-2023.pdf [1]
> Signed-off-by: Yixun Lan <dlan@kernel.org>
> ---
>  .../devicetree/bindings/usb/terminus,fe11.yaml     | 61 ++++++++++++++++++++++
>  1 file changed, 61 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/terminus,fe11.yaml b/Documentation/devicetree/bindings/usb/terminus,fe11.yaml
> new file mode 100644
> index 000000000000..93bb4066f851
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/terminus,fe11.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/terminus,fe11.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Terminus FE1.1/1.1S USB 2.0 Hub Controller
> +
> +maintainers:
> +  - Yixun Lan <dlan@kernel.org>
> +
> +allOf:
> +  - $ref: usb-hub.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - usb1a40,0101

I do not see vendor prefix used anywhere. Drop that patch, because I
think we do not reserve them for file names or schema IDs.

> +
> +  reg: true
> +
> +  reset-gpios:
> +    description:
> +      GPIO controlling the RESET#, but the reset line can be optional.

Don't repeat constraints in free form text. Schema tells what can be
optional by not requiring it.

> +
> +  vdd-supply:
> +    description:
> +      Regulator supply to the hub, one of 3.3V or 5V can be chosen.

And this cannot be optional.

> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    patternProperties:
> +      '^port@':
> +        $ref: /schemas/graph.yaml#/properties/port
> +
> +        properties:
> +          reg:
> +            minimum: 1
> +            maximum: 4
> +
> +required:
> +  - compatible
> +  - reg

Missing supply.

> +
> +additionalProperties: false

First, radxa never built tested the DTS when posted it. Yeah, why would
they care...

Second, now you added schema which is nice, but you still did not verify
it with the DTS.

That's the point of DT schema. To verify the DTS. You MUST do it when
you post the binding. Why? To see the errors you have here. See other
hub schemas, like genesys, what goes above - unevaluated.

> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +    usb {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        hub: hub@1 {

Drop unused label

> +            compatible = "usb1a40,0101";
> +            reg = <1>;
> +            reset-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
> +            vdd-supply = <&vcc_5v>;
> +        };
> +    };
> 
> -- 
> 2.53.0
> 

Re: [PATCH 2/3] dt-bindings: usb: Add support for Terminus FE1.1s USB2.0 Hub controller

[Yixun Lan]

Hi Krzysztof, 

I will address all comments for other patches in this series, so no reply
to all of them..

On 09:36 Wed 18 Mar     , Krzysztof Kozlowski wrote:
> On Tue, Mar 17, 2026 at 08:55:03AM +0000, Yixun Lan wrote:
> > Terminus FE1.1s is USB2.0 protocol compliant 4-port USB HUB, It support
> > MTT (Multiple Transaction Translator) mode, the upstream port supports
> > high-speed 480MHz and full-speed 12MHz modes, also has integrated 5V to
> > 3.3V, 1.8V regulator and Power-On-Reset circuit.
> > 
> > Introduce the DT binding for it.
> > 
> > Link: https://terminus-usa.com/wp-content/uploads/2024/06/FE1.1s-Product-Brief-Rev.-2.0-2023.pdf [1]
> > Signed-off-by: Yixun Lan <dlan@kernel.org>
> > ---
> >  .../devicetree/bindings/usb/terminus,fe11.yaml     | 61 ++++++++++++++++++++++
> >  1 file changed, 61 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/usb/terminus,fe11.yaml b/Documentation/devicetree/bindings/usb/terminus,fe11.yaml
> > new file mode 100644
> > index 000000000000..93bb4066f851
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/usb/terminus,fe11.yaml
> > @@ -0,0 +1,61 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/usb/terminus,fe11.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Terminus FE1.1/1.1S USB 2.0 Hub Controller
> > +
> > +maintainers:
> > +  - Yixun Lan <dlan@kernel.org>
> > +
> > +allOf:
> > +  - $ref: usb-hub.yaml#
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - usb1a40,0101
> 
> I do not see vendor prefix used anywhere. Drop that patch, because I
> think we do not reserve them for file names or schema IDs.
> 
Ok, will drop
> > +
> > +  reg: true
> > +
> > +  reset-gpios:
> > +    description:
> > +      GPIO controlling the RESET#, but the reset line can be optional.
> 
> Don't repeat constraints in free form text. Schema tells what can be
> optional by not requiring it.
> 
Ok
> > +
> > +  vdd-supply:
> > +    description:
> > +      Regulator supply to the hub, one of 3.3V or 5V can be chosen.
> 
> And this cannot be optional.
> 
Ok, will add it to 'required' section
> > +
> > +  ports:
> > +    $ref: /schemas/graph.yaml#/properties/ports
> > +
> > +    patternProperties:
> > +      '^port@':
> > +        $ref: /schemas/graph.yaml#/properties/port
> > +
> > +        properties:
> > +          reg:
> > +            minimum: 1
> > +            maximum: 4
> > +
> > +required:
> > +  - compatible
> > +  - reg
> 
> Missing supply.
> 
ditto
> > +
> > +additionalProperties: false
> 
> First, radxa never built tested the DTS when posted it. Yeah, why would
> they care...
> 
> Second, now you added schema which is nice, but you still did not verify
> it with the DTS.
> 
> That's the point of DT schema. To verify the DTS. You MUST do it when
> you post the binding. Why? To see the errors you have here. See other
> hub schemas, like genesys, what goes above - unevaluated.
> 
Ok, I did the binding check but only for arch/riscv/, will cover all in
future..

> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/gpio/gpio.h>
> > +    usb {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        hub: hub@1 {
> 
> Drop unused label
> 
Ok

> > +            compatible = "usb1a40,0101";
> > +            reg = <1>;
> > +            reset-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
> > +            vdd-supply = <&vcc_5v>;
> > +        };
> > +    };
> > 
> > -- 
> > 2.53.0
> > 
> 

-- 
Yixun Lan (dlan)

[PATCH 3/3] usb: misc: onboard_usb_dev: Add Terminus FE1.1s USB2.0 Hub (1a40:0101)

[Yixun Lan]

Terminus FE1.1s is USB2.0 protocol compliant 4-port USB HUB, It support
MTT (Multiple Transaction Translator) mode, the upstream port supports
high-speed 480MHz and full-speed 12MHz modes, also it has integrated 5V
to 3.3V/1.8V regulator and Power-On-Reset circuit.

Link: https://terminus-usa.com/wp-content/uploads/2024/06/FE1.1s-Product-Brief-Rev.-2.0-2023.pdf [1]
Signed-off-by: Yixun Lan <dlan@kernel.org>
---
 drivers/usb/misc/onboard_usb_dev.c | 2 ++
 drivers/usb/misc/onboard_usb_dev.h | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/usb/misc/onboard_usb_dev.c b/drivers/usb/misc/onboard_usb_dev.c
index ba37eb99efba..5732843c6687 100644
--- a/drivers/usb/misc/onboard_usb_dev.c
+++ b/drivers/usb/misc/onboard_usb_dev.c
@@ -570,6 +570,7 @@ static struct platform_driver onboard_dev_driver = {
 #define VENDOR_ID_MICROCHIP	0x0424
 #define VENDOR_ID_PARADE	0x1da0
 #define VENDOR_ID_REALTEK	0x0bda
+#define VENDOR_ID_TERMINUS	0x1a40
 #define VENDOR_ID_TI		0x0451
 #define VENDOR_ID_VIA		0x2109
 #define VENDOR_ID_XMOS		0x20B1
@@ -673,6 +674,7 @@ static const struct usb_device_id onboard_dev_id_table[] = {
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0414) }, /* RTS5414 USB 3.2 HUB */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x5414) }, /* RTS5414 USB 2.1 HUB */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0179) }, /* RTL8188ETV 2.4GHz WiFi */
+	{ USB_DEVICE(VENDOR_ID_TERMINUS, 0x0101) }, /* Terminus FE1.1s 2.0 HUB */
 	{ USB_DEVICE(VENDOR_ID_TI, 0x8025) }, /* TI USB8020B 3.0 HUB */
 	{ USB_DEVICE(VENDOR_ID_TI, 0x8027) }, /* TI USB8020B 2.0 HUB */
 	{ USB_DEVICE(VENDOR_ID_TI, 0x8140) }, /* TI USB8041 3.0 HUB */
diff --git a/drivers/usb/misc/onboard_usb_dev.h b/drivers/usb/misc/onboard_usb_dev.h
index 1a1e86e60e04..4efc5f44c4ee 100644
--- a/drivers/usb/misc/onboard_usb_dev.h
+++ b/drivers/usb/misc/onboard_usb_dev.h
@@ -108,6 +108,13 @@ static const struct onboard_dev_pdata genesys_gl852g_data = {
 	.is_hub = true,
 };
 
+static const struct onboard_dev_pdata terminus_fe11s_data = {
+	.reset_us = 10,
+	.num_supplies = 1,
+	.supply_names = { "vdd" },
+	.is_hub = true,
+};
+
 static const struct onboard_dev_pdata vialab_vl817_data = {
 	.reset_us = 10,
 	.num_supplies = 1,
@@ -153,6 +160,7 @@ static const struct of_device_id onboard_dev_match[] = {
 	{ .compatible = "usbbda,5411", .data = &realtek_rts5411_data, },
 	{ .compatible = "usbbda,414", .data = &realtek_rts5411_data, },
 	{ .compatible = "usbbda,5414", .data = &realtek_rts5411_data, },
+	{ .compatible = "usb1a40,0101", .data = &terminus_fe11s_data, },
 	{ .compatible = "usb1a86,8091", .data = &wch_ch334_data, },
 	{ .compatible = "usb1da0,5511", .data = &parade_ps5511_data, },
 	{ .compatible = "usb1da0,55a1", .data = &parade_ps5511_data, },

-- 
2.53.0

Re: [PATCH 3/3] usb: misc: onboard_usb_dev: Add Terminus FE1.1s USB2.0 Hub (1a40:0101)

[Krzysztof Kozlowski]

On Tue, Mar 17, 2026 at 08:55:04AM +0000, Yixun Lan wrote:
> Terminus FE1.1s is USB2.0 protocol compliant 4-port USB HUB, It support
> MTT (Multiple Transaction Translator) mode, the upstream port supports
> high-speed 480MHz and full-speed 12MHz modes, also it has integrated 5V
> to 3.3V/1.8V regulator and Power-On-Reset circuit.
> 
> Link: https://terminus-usa.com/wp-content/uploads/2024/06/FE1.1s-Product-Brief-Rev.-2.0-2023.pdf [1]
> Signed-off-by: Yixun Lan <dlan@kernel.org>
> ---
>  drivers/usb/misc/onboard_usb_dev.c | 2 ++
>  drivers/usb/misc/onboard_usb_dev.h | 8 ++++++++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/drivers/usb/misc/onboard_usb_dev.c b/drivers/usb/misc/onboard_usb_dev.c
> index ba37eb99efba..5732843c6687 100644
> --- a/drivers/usb/misc/onboard_usb_dev.c
> +++ b/drivers/usb/misc/onboard_usb_dev.c
> @@ -570,6 +570,7 @@ static struct platform_driver onboard_dev_driver = {
>  #define VENDOR_ID_MICROCHIP	0x0424
>  #define VENDOR_ID_PARADE	0x1da0
>  #define VENDOR_ID_REALTEK	0x0bda
> +#define VENDOR_ID_TERMINUS	0x1a40
>  #define VENDOR_ID_TI		0x0451
>  #define VENDOR_ID_VIA		0x2109
>  #define VENDOR_ID_XMOS		0x20B1
> @@ -673,6 +674,7 @@ static const struct usb_device_id onboard_dev_id_table[] = {
>  	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0414) }, /* RTS5414 USB 3.2 HUB */
>  	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x5414) }, /* RTS5414 USB 2.1 HUB */
>  	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0179) }, /* RTL8188ETV 2.4GHz WiFi */
> +	{ USB_DEVICE(VENDOR_ID_TERMINUS, 0x0101) }, /* Terminus FE1.1s 2.0 HUB */
>  	{ USB_DEVICE(VENDOR_ID_TI, 0x8025) }, /* TI USB8020B 3.0 HUB */
>  	{ USB_DEVICE(VENDOR_ID_TI, 0x8027) }, /* TI USB8020B 2.0 HUB */
>  	{ USB_DEVICE(VENDOR_ID_TI, 0x8140) }, /* TI USB8041 3.0 HUB */
> diff --git a/drivers/usb/misc/onboard_usb_dev.h b/drivers/usb/misc/onboard_usb_dev.h
> index 1a1e86e60e04..4efc5f44c4ee 100644
> --- a/drivers/usb/misc/onboard_usb_dev.h
> +++ b/drivers/usb/misc/onboard_usb_dev.h
> @@ -108,6 +108,13 @@ static const struct onboard_dev_pdata genesys_gl852g_data = {
>  	.is_hub = true,
>  };
>  
> +static const struct onboard_dev_pdata terminus_fe11s_data = {
> +	.reset_us = 10,
> +	.num_supplies = 1,
> +	.supply_names = { "vdd" },
> +	.is_hub = true,
> +};

So same as vialab_vl817_data, use that one.

Best regards,
Krzysztof