[PATCH v2 0/4] dt-bindings: usb: atmel: convert Atmel USB controller bindings to YAML

[PATCH v2 0/4] dt-bindings: usb: atmel: convert Atmel USB controller bindings to YAML

[Charan Pedumuru]

This patch series converts the legacy text-based Device Tree bindings for
Atmel/Microchip USB controllers to DT schema (YAML) format.

Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
---
Changes in v2:
- Drop the separate YAML patches for OHCI and EHCI.
- Add the compatibles "atmel,at91rm9200-ohci" and "atmel,at91sam9g45-ehci"
  to the existing generic OHCI and EHCI binding files.
- Link to v1: https://lore.kernel.org/r/20260201-atmel-usb-v1-0-d1a3e93003f1@gmail.com

---
Charan Pedumuru (4):
      dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support
      dt-bindings: usb: generic-ehci: fix schema structure and add at91sam9g45 constraints
      dt-bindings: usb: atmel,at91rm9200-udc: convert to DT schema
      dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema

 .../bindings/usb/atmel,at91rm9200-udc.yaml         |  77 +++++++++++++
 .../bindings/usb/atmel,at91sam9rl-udc.yaml         |  81 +++++++++++++
 .../devicetree/bindings/usb/atmel-usb.txt          | 125 ---------------------
 .../devicetree/bindings/usb/generic-ehci.yaml      |  46 +++++---
 .../devicetree/bindings/usb/generic-ohci.yaml      |  27 +++++
 5 files changed, 218 insertions(+), 138 deletions(-)
---
base-commit: 3f24e4edcd1b8981c6b448ea2680726dedd87279
change-id: 20260129-atmel-usb-37f89a141e48

Best regards,
-- 
Charan Pedumuru <charan.pedumuru@gmail.com>

[PATCH v2 1/4] dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support

[Charan Pedumuru]

Add binding support for the Atmel AT91RM9200 OHCI USB host controller
to the generic OHCI schema.

Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
---
 .../devicetree/bindings/usb/generic-ohci.yaml      | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
index 961cbf85eeb5..ab8a49142386 100644
--- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
@@ -55,6 +55,7 @@ properties:
           - ti,ohci-omap3
       - items:
           - enum:
+              - atmel,at91rm9200-ohci
               - cavium,octeon-6335-ohci
               - nintendo,hollywood-usb-ohci
               - nxp,ohci-nxp
@@ -137,6 +138,16 @@ properties:
       The associated ISP1301 device. Necessary for the UDC controller for
       connecting to the USB physical layer.
 
+  atmel,vbus-gpio:
+    description: GPIO used to control or sense the USB VBUS power.
+    minItems: 1
+    maxItems: 3
+
+  atmel,oc-gpio:
+    description: GPIO used to signal USB overcurrent condition.
+    minItems: 1
+    maxItems: 3
+
 required:
   - compatible
   - reg
@@ -144,6 +155,22 @@ required:
 
 allOf:
   - $ref: usb-hcd.yaml
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: atmel,at91rm9200-ohci
+    then:
+      properties:
+        clock-names:
+          items:
+            - const: ohci_clk
+            - const: hclk
+            - const: uhpck
+
+      required:
+        - clocks
+        - clock-names
   - if:
       not:
         properties:

-- 
2.53.0

Re: [PATCH v2 1/4] dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support

[Rob Herring]

On Tue, Feb 24, 2026 at 01:12:58PM +0000, Charan Pedumuru wrote:
> Add binding support for the Atmel AT91RM9200 OHCI USB host controller
> to the generic OHCI schema.
> 
> Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
> ---
>  .../devicetree/bindings/usb/generic-ohci.yaml      | 27 ++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> index 961cbf85eeb5..ab8a49142386 100644
> --- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> +++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> @@ -55,6 +55,7 @@ properties:
>            - ti,ohci-omap3
>        - items:
>            - enum:
> +              - atmel,at91rm9200-ohci
>                - cavium,octeon-6335-ohci
>                - nintendo,hollywood-usb-ohci
>                - nxp,ohci-nxp
> @@ -137,6 +138,16 @@ properties:
>        The associated ISP1301 device. Necessary for the UDC controller for
>        connecting to the USB physical layer.
>  
> +  atmel,vbus-gpio:
> +    description: GPIO used to control or sense the USB VBUS power.
> +    minItems: 1
> +    maxItems: 3
> +
> +  atmel,oc-gpio:
> +    description: GPIO used to signal USB overcurrent condition.
> +    minItems: 1
> +    maxItems: 3
> +
>  required:
>    - compatible
>    - reg
> @@ -144,6 +155,22 @@ required:
>  
>  allOf:
>    - $ref: usb-hcd.yaml
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: atmel,at91rm9200-ohci
> +    then:
> +      properties:
> +        clock-names:
> +          items:
> +            - const: ohci_clk
> +            - const: hclk
> +            - const: uhpck
> +
> +      required:
> +        - clocks
> +        - clock-names

       else:
         properties:
           atmel,vbus-gpio: false
           atmel,oc-gpio: false

>    - if:
>        not:
>          properties:
> 
> -- 
> 2.53.0
> 

Re: [PATCH v2 1/4] dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support

[Charan Pedumuru]

On 06-03-2026 06:15, Rob Herring wrote:
> On Tue, Feb 24, 2026 at 01:12:58PM +0000, Charan Pedumuru wrote:
>> Add binding support for the Atmel AT91RM9200 OHCI USB host controller
>> to the generic OHCI schema.
>>
>> Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
>> ---
>>  .../devicetree/bindings/usb/generic-ohci.yaml      | 27 ++++++++++++++++++++++
>>  1 file changed, 27 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
>> index 961cbf85eeb5..ab8a49142386 100644
>> --- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
>> +++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
>> @@ -55,6 +55,7 @@ properties:
>>            - ti,ohci-omap3
>>        - items:
>>            - enum:
>> +              - atmel,at91rm9200-ohci
>>                - cavium,octeon-6335-ohci
>>                - nintendo,hollywood-usb-ohci
>>                - nxp,ohci-nxp
>> @@ -137,6 +138,16 @@ properties:
>>        The associated ISP1301 device. Necessary for the UDC controller for
>>        connecting to the USB physical layer.
>>  
>> +  atmel,vbus-gpio:
>> +    description: GPIO used to control or sense the USB VBUS power.
>> +    minItems: 1
>> +    maxItems: 3
>> +
>> +  atmel,oc-gpio:
>> +    description: GPIO used to signal USB overcurrent condition.
>> +    minItems: 1
>> +    maxItems: 3
>> +
>>  required:
>>    - compatible
>>    - reg
>> @@ -144,6 +155,22 @@ required:
>>  
>>  allOf:
>>    - $ref: usb-hcd.yaml
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: atmel,at91rm9200-ohci
>> +    then:
>> +      properties:
>> +        clock-names:
>> +          items:
>> +            - const: ohci_clk
>> +            - const: hclk
>> +            - const: uhpck
>> +
>> +      required:
>> +        - clocks
>> +        - clock-names
> 
>        else:
>          properties:
>            atmel,vbus-gpio: false
>            atmel,oc-gpio: false

Sure, I will add it.

> 
>>    - if:
>>        not:
>>          properties:
>>
>> -- 
>> 2.53.0
>>

-- 
Best Regards,
Charan.

[PATCH v2 2/4] dt-bindings: usb: generic-ehci: fix schema structure and add at91sam9g45 constraints

[Charan Pedumuru]

Add clock and phy constraints for atmel,at91sam9g45-ehci and reorganize
the allOf section to fix dtbs_check warnings.

Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
---
 .../devicetree/bindings/usb/generic-ehci.yaml      | 46 ++++++++++++++++------
 1 file changed, 33 insertions(+), 13 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
index 601f097c09a6..55a5aa7d7a54 100644
--- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
@@ -9,19 +9,6 @@ title: USB EHCI Controller
 maintainers:
   - Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 
-allOf:
-  - $ref: usb-hcd.yaml
-  - if:
-      properties:
-        compatible:
-          not:
-            contains:
-              const: ibm,usb-ehci-440epx
-    then:
-      properties:
-        reg:
-          maxItems: 1
-
 properties:
   compatible:
     oneOf:
@@ -167,6 +154,39 @@ required:
   - reg
   - interrupts
 
+allOf:
+  - $ref: usb-hcd.yaml
+  - if:
+      properties:
+        compatible:
+          not:
+            contains:
+              const: ibm,usb-ehci-440epx
+    then:
+      properties:
+        reg:
+          maxItems: 1
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: atmel,at91sam9g45-ehci
+    then:
+      properties:
+        clock-names:
+          items:
+            - const: usb_clk
+            - const: ehci_clk
+
+        phy_type:
+          enum:
+            - utmi
+            - hsic
+
+      required:
+        - clocks
+        - clock-names
+
 unevaluatedProperties: false
 
 examples:

-- 
2.53.0

Re: [PATCH v2 2/4] dt-bindings: usb: generic-ehci: fix schema structure and add at91sam9g45 constraints

[Rob Herring (Arm)]

On Tue, 24 Feb 2026 13:12:59 +0000, Charan Pedumuru wrote:
> Add clock and phy constraints for atmel,at91sam9g45-ehci and reorganize
> the allOf section to fix dtbs_check warnings.
> 
> Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
> ---
>  .../devicetree/bindings/usb/generic-ehci.yaml      | 46 ++++++++++++++++------
>  1 file changed, 33 insertions(+), 13 deletions(-)
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>

[PATCH v2 3/4] dt-bindings: usb: atmel,at91rm9200-udc: convert to DT schema

[Charan Pedumuru]

Convert Atmel AT91 USB Device Controller (UDC) binding to DT schema.
Changes during conversion:
- Include "atmel,pullup-gpio" and "atmel,matrix" in the properties since
  they are required by existing in-tree DTS definitions.

Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
---
 .../bindings/usb/atmel,at91rm9200-udc.yaml         | 77 ++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/atmel,at91rm9200-udc.yaml b/Documentation/devicetree/bindings/usb/atmel,at91rm9200-udc.yaml
new file mode 100644
index 000000000000..6961cd5d5d89
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/atmel,at91rm9200-udc.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/atmel,at91rm9200-udc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel AT91 USB Device Controller (UDC)
+
+maintainers:
+  - Nicolas Ferre <nicolas.ferre@microchip.com>
+  - Alexandre Belloni <alexandre.belloni@bootlin.com>
+
+description:
+  The Atmel AT91 USB Device Controller provides USB gadget (device-mode)
+  functionality on AT91 SoCs. It requires a peripheral clock and an AHB
+  clock for operation and may optionally control VBUS power through a GPIO.
+
+properties:
+  compatible:
+    enum:
+      - atmel,at91rm9200-udc
+      - atmel,at91sam9260-udc
+      - atmel,at91sam9261-udc
+      - atmel,at91sam9263-udc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: pclk
+      - const: hclk
+
+  atmel,vbus-gpio:
+    description: GPIO used to enable or control VBUS power for the USB bus.
+    maxItems: 1
+
+  atmel,matrix:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: Phandle to the Atmel bus matrix controller.
+
+  atmel,pullup-gpio:
+    description:
+      GPIO controlling the USB D+ pull-up resistor used to signal device
+      connection to the host.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/at91.h>
+    #include <dt-bindings/gpio/gpio.h>
+    gadget@fffa4000 {
+        compatible = "atmel,at91rm9200-udc";
+        reg = <0xfffa4000 0x4000>;
+        interrupts = <11 IRQ_TYPE_LEVEL_HIGH 2>;
+        clocks = <&udc_clk>, <&udpck>;
+        clock-names = "pclk", "hclk";
+        atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
+    };
+...

-- 
2.53.0

Re: [PATCH v2 3/4] dt-bindings: usb: atmel,at91rm9200-udc: convert to DT schema

[Rob Herring (Arm)]

On Tue, 24 Feb 2026 13:13:00 +0000, Charan Pedumuru wrote:
> Convert Atmel AT91 USB Device Controller (UDC) binding to DT schema.
> Changes during conversion:
> - Include "atmel,pullup-gpio" and "atmel,matrix" in the properties since
>   they are required by existing in-tree DTS definitions.
> 
> Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
> ---
>  .../bindings/usb/atmel,at91rm9200-udc.yaml         | 77 ++++++++++++++++++++++
>  1 file changed, 77 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>

[PATCH v2 4/4] dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema

[Charan Pedumuru]

Convert Atmel High-Speed USB Device Controller (USBA) binding to DT schema.
Changes during conversion:
- Include "#address-cells" and "#size-cells" in the properties since they
  are required by existing in-tree DTS definitions.

Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
---
 .../bindings/usb/atmel,at91sam9rl-udc.yaml         |  81 +++++++++++++
 .../devicetree/bindings/usb/atmel-usb.txt          | 125 ---------------------
 2 files changed, 81 insertions(+), 125 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/atmel,at91sam9rl-udc.yaml b/Documentation/devicetree/bindings/usb/atmel,at91sam9rl-udc.yaml
new file mode 100644
index 000000000000..6f5710cecaee
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/atmel,at91sam9rl-udc.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/atmel,at91sam9rl-udc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel High-Speed USB Device Controller (USBA)
+
+maintainers:
+  - Nicolas Ferre <nicolas.ferre@microchip.com>
+  - Alexandre Belloni <alexandre.belloni@bootlin.com>
+
+description:
+  The Atmel High-Speed USB Device Controller (USBA) provides USB 2.0
+  high-speed gadget functionality on several Atmel and Microchip SoCs.
+  The controller requires a peripheral clock and a host clock for operation
+  and may optionally use a GPIO to detect VBUS presence.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - atmel,at91sam9rl-udc
+          - atmel,at91sam9g45-udc
+          - atmel,sama5d3-udc
+      - items:
+          - const: microchip,lan9662-udc
+          - const: atmel,sama5d3-udc
+      - const: microchip,sam9x60-udc
+
+  reg:
+    maxItems: 2
+
+  interrupts:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  clocks:
+    minItems: 2
+    maxItems: 2
+
+  clock-names:
+    minItems: 2
+    maxItems: 2
+    items:
+      enum: [pclk, hclk]
+
+  atmel,vbus-gpio:
+    description: GPIO used to detect the presence of VBUS, indicating that
+      the USB cable is connected.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/at91.h>
+    #include <dt-bindings/gpio/gpio.h>
+    gadget@fff78000 {
+        compatible = "atmel,at91sam9g45-udc";
+        reg = <0x00600000 0x80000
+               0xfff78000 0x400>;
+        interrupts = <27 IRQ_TYPE_LEVEL_HIGH 0>;
+        clocks = <&pmc PMC_TYPE_PERIPHERAL 27>, <&pmc PMC_TYPE_CORE PMC_UTMI>;
+        clock-names = "pclk", "hclk";
+        atmel,vbus-gpio = <&pioC 15 GPIO_ACTIVE_HIGH>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/usb/atmel-usb.txt b/Documentation/devicetree/bindings/usb/atmel-usb.txt
deleted file mode 100644
index 12183ef47ee4..000000000000
--- a/Documentation/devicetree/bindings/usb/atmel-usb.txt
+++ /dev/null
@@ -1,125 +0,0 @@
-Atmel SOC USB controllers
-
-OHCI
-
-Required properties:
- - compatible: Should be "atmel,at91rm9200-ohci" for USB controllers
-   used in host mode.
- - reg: Address and length of the register set for the device
- - interrupts: Should contain ohci interrupt
- - clocks: Should reference the peripheral, host and system clocks
- - clock-names: Should contain three strings
-		"ohci_clk" for the peripheral clock
-		"hclk" for the host clock
-		"uhpck" for the system clock
- - num-ports: Number of ports.
- - atmel,vbus-gpio: If present, specifies a gpio that needs to be
-   activated for the bus to be powered.
- - atmel,oc-gpio: If present, specifies a gpio that needs to be
-   activated for the overcurrent detection.
-
-usb0: ohci@500000 {
-	compatible = "atmel,at91rm9200-ohci", "usb-ohci";
-	reg = <0x00500000 0x100000>;
-	clocks = <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;
-	clock-names = "ohci_clk", "hclk", "uhpck";
-	interrupts = <20 4>;
-	num-ports = <2>;
-};
-
-EHCI
-
-Required properties:
- - compatible: Should be "atmel,at91sam9g45-ehci" for USB controllers
-   used in host mode.
- - reg: Address and length of the register set for the device
- - interrupts: Should contain ehci interrupt
- - clocks: Should reference the peripheral and the UTMI clocks
- - clock-names: Should contain two strings
-		"ehci_clk" for the peripheral clock
-		"usb_clk" for the UTMI clock
-
-Optional properties:
- - phy_type : For multi port host USB controllers, should be one of
-   "utmi", or "hsic".
-
-usb1: ehci@800000 {
-	compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
-	reg = <0x00800000 0x100000>;
-	interrupts = <22 4>;
-	clocks = <&utmi>, <&uhphs_clk>;
-	clock-names = "usb_clk", "ehci_clk";
-};
-
-AT91 USB device controller
-
-Required properties:
- - compatible: Should be one of the following
-	       "atmel,at91rm9200-udc"
-	       "atmel,at91sam9260-udc"
-	       "atmel,at91sam9261-udc"
-	       "atmel,at91sam9263-udc"
- - reg: Address and length of the register set for the device
- - interrupts: Should contain macb interrupt
- - clocks: Should reference the peripheral and the AHB clocks
- - clock-names: Should contain two strings
-		"pclk" for the peripheral clock
-		"hclk" for the AHB clock
-
-Optional properties:
- - atmel,vbus-gpio: If present, specifies a gpio that needs to be
-   activated for the bus to be powered.
-
-usb1: gadget@fffa4000 {
-	compatible = "atmel,at91rm9200-udc";
-	reg = <0xfffa4000 0x4000>;
-	interrupts = <10 4>;
-	clocks = <&udc_clk>, <&udpck>;
-	clock-names = "pclk", "hclk";
-	atmel,vbus-gpio = <&pioC 5 0>;
-};
-
-Atmel High-Speed USB device controller
-
-Required properties:
- - compatible: Should be one of the following
-	       "atmel,at91sam9rl-udc"
-	       "atmel,at91sam9g45-udc"
-	       "atmel,sama5d3-udc"
-	       "microchip,sam9x60-udc"
-	       "microchip,lan9662-udc"
-	       For "microchip,lan9662-udc" the fallback "atmel,sama5d3-udc"
-	       is required.
- - reg: Address and length of the register set for the device
- - interrupts: Should contain usba interrupt
- - clocks: Should reference the peripheral and host clocks
- - clock-names: Should contain two strings
-		"pclk" for the peripheral clock
-		"hclk" for the host clock
-
-Deprecated property:
- - ep childnode: To specify the number of endpoints and their properties.
-
-Optional properties:
- - atmel,vbus-gpio: If present, specifies a gpio that allows to detect whether
-   vbus is present (USB is connected).
-
-Deprecated child node properties:
- - name: Name of the endpoint.
- - reg: Num of the endpoint.
- - atmel,fifo-size: Size of the fifo.
- - atmel,nb-banks: Number of banks.
- - atmel,can-dma: Boolean to specify if the endpoint support DMA.
- - atmel,can-isoc: Boolean to specify if the endpoint support ISOC.
-
-usb2: gadget@fff78000 {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	compatible = "atmel,at91sam9rl-udc";
-	reg = <0x00600000 0x80000
-	       0xfff78000 0x400>;
-	interrupts = <27 4 0>;
-	clocks = <&utmi>, <&udphs_clk>;
-	clock-names = "hclk", "pclk";
-	atmel,vbus-gpio = <&pioB 19 0>;
-};

-- 
2.53.0

Re: [PATCH v2 4/4] dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema

[Rob Herring]

On Tue, Feb 24, 2026 at 01:13:01PM +0000, Charan Pedumuru wrote:
> Convert Atmel High-Speed USB Device Controller (USBA) binding to DT schema.
> Changes during conversion:
> - Include "#address-cells" and "#size-cells" in the properties since they
>   are required by existing in-tree DTS definitions.

The DTS files are wrong unless there are child nodes and there aren't. 
Drop those.

Re: [PATCH v2 4/4] dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema

[Charan Pedumuru]

On 06-03-2026 06:19, Rob Herring wrote:
> On Tue, Feb 24, 2026 at 01:13:01PM +0000, Charan Pedumuru wrote:
>> Convert Atmel High-Speed USB Device Controller (USBA) binding to DT schema.
>> Changes during conversion:
>> - Include "#address-cells" and "#size-cells" in the properties since they
>>   are required by existing in-tree DTS definitions.
> 
> The DTS files are wrong unless there are child nodes and there aren't.

Yes, there is no child node but these properties are defined in sam9x60.dtsi for the compatible "microchip,sam9x60-udc" and the yaml fails dtbs_check if I remove them, can I send an another patch for removing these properties from sam9x60.dtsi?

> Drop those.

-- 
Best Regards,
Charan.

Re: [PATCH v2 4/4] dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema

[Rob Herring]

On Sat, Mar 7, 2026 at 1:46 AM Charan Pedumuru
<charan.pedumuru@gmail.com> wrote:
>
>
>
> On 06-03-2026 06:19, Rob Herring wrote:
> > On Tue, Feb 24, 2026 at 01:13:01PM +0000, Charan Pedumuru wrote:
> >> Convert Atmel High-Speed USB Device Controller (USBA) binding to DT schema.
> >> Changes during conversion:
> >> - Include "#address-cells" and "#size-cells" in the properties since they
> >>   are required by existing in-tree DTS definitions.
> >
> > The DTS files are wrong unless there are child nodes and there aren't.
>
> Yes, there is no child node but these properties are defined in sam9x60.dtsi for the compatible "microchip,sam9x60-udc" and the yaml fails dtbs_check if I remove them, can I send an another patch for removing these properties from sam9x60.dtsi?
>

Yes. There's no requirement to fix the .dts files when doing the
conversion, but a fix would be nice.

Rob