diff mbox series

[v4] dt-bindings: usb: Add new compatible string for AM64 SoC

Message ID 20201211060429.20027-1-a-govindraju@ti.com
State Superseded
Headers show
Series [v4] dt-bindings: usb: Add new compatible string for AM64 SoC | expand

Commit Message

Aswath Govindraju Dec. 11, 2020, 6:04 a.m. UTC
Add compatible string in j721e-usb binding file as the same USB subsystem
is present in AM64.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---

Changes since v3:
- used enum instead of anyOf.

Changes since v2:
- added changes done over the versions.

Changes since v1:
- replaced the '\t' at the beginning of the lines with spaces as it was
  causing the dt_binding_check to fail.

 Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Aswath Govindraju Dec. 11, 2020, noon UTC | #1
Hi,
On 11/12/20 11:34 am, Aswath Govindraju wrote:
> Add compatible string in j721e-usb binding file as the same USB subsystem
> is present in AM64.
> 
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
> ---
> 
> Changes since v3:
> - used enum instead of anyOf.
> 
> Changes since v2:
> - added changes done over the versions.
> 
> Changes since v1:
> - replaced the '\t' at the beginning of the lines with spaces as it was
>   causing the dt_binding_check to fail.
> 
>  Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> index 388245b91a55..1a5c7bbb40d1 100644
> --- a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> +++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> @@ -11,8 +11,9 @@ maintainers:
>  
>  properties:
>    compatible:
> -    items:
> -      - const: ti,j721e-usb
> +    enum:
> +      - ti,j721e-usb
> +      - ti,am64-usb
> 

I am trying to use the compatible strings in the following manner

```
compatible = "ti,am64-usb", "ti,j721e-usb";

```
If I use above patch I am getting an error while doing a dtbs check.

```
/home/gsaswath/src/ti-linux-kernel/arch/arm64/boot/dts/ti/k3-am642-evm.dt.yaml:
cdns-usb@f900000: compatible: Additional items are not allowed
('ti,j721e-usb' was unexpected)
	From schema:
/home/gsaswath/src/ti-linux-kernel/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
/home/gsaswath/src/ti-linux-kernel/arch/arm64/boot/dts/ti/k3-am642-evm.dt.yaml:
cdns-usb@f900000: compatible: ['ti,am64-usb', 'ti,j721e-usb'] is too long
	From schema:
/home/gsaswath/src/ti-linux-kernel/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml

```


I have looked around for examples but I am unable to find a similar
case. I tried using anyOf in the following manner

```
compatible:
     anyOf:
        - const: ti,am64-usb
        - const: ti,j721e-usb
```

But I am getting an error

```
/home/gsaswath/src/ti-linux-kernel/Documentation/devicetree/bindings/usb/ti,j721e-usb.example.dt.yaml:
cdns_usb@4104000: compatible: 'anyOf' conditional failed, one must be fixed:
	Additional items are not allowed ('ti,j721e-usb' was unexpected)
	['ti,am64-usb', 'ti,j721e-usb'] is too long
	'ti,j721e-usb' was expected
```

Doesn't anyof mean that the compatible strings can be used in any
combination ??

Thanks,
Aswath

>    reg:
>      description: module registers
>
Aswath Govindraju Dec. 14, 2020, 2:08 p.m. UTC | #2
Hi Rob,
On 12/12/20 4:18 am, Rob Herring wrote:
> On Fri, Dec 11, 2020 at 6:04 AM Aswath Govindraju <a-govindraju@ti.com> wrote:

>>

>> Hi,

>> On 11/12/20 11:34 am, Aswath Govindraju wrote:

>>> Add compatible string in j721e-usb binding file as the same USB subsystem

>>> is present in AM64.

>>>

>>> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

>>> ---

>>>

>>> Changes since v3:

>>> - used enum instead of anyOf.

>>>

>>> Changes since v2:

>>> - added changes done over the versions.

>>>

>>> Changes since v1:

>>> - replaced the '\t' at the beginning of the lines with spaces as it was

>>>   causing the dt_binding_check to fail.

>>>

>>>  Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml | 5 +++--

>>>  1 file changed, 3 insertions(+), 2 deletions(-)

>>>

>>> diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml

>>> index 388245b91a55..1a5c7bbb40d1 100644

>>> --- a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml

>>> +++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml

>>> @@ -11,8 +11,9 @@ maintainers:

>>>

>>>  properties:

>>>    compatible:

>>> -    items:

>>> -      - const: ti,j721e-usb

>>> +    enum:

>>> +      - ti,j721e-usb

>>> +      - ti,am64-usb

>>>

>>

>> I am trying to use the compatible strings in the following manner

>>

>> ```

>> compatible = "ti,am64-usb", "ti,j721e-usb";

>>

>> ```

>> If I use above patch I am getting an error while doing a dtbs check.

>>

>> ```

>> /home/gsaswath/src/ti-linux-kernel/arch/arm64/boot/dts/ti/k3-am642-evm.dt.yaml:

>> cdns-usb@f900000: compatible: Additional items are not allowed

>> ('ti,j721e-usb' was unexpected)

>>         From schema:

>> /home/gsaswath/src/ti-linux-kernel/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml

>> /home/gsaswath/src/ti-linux-kernel/arch/arm64/boot/dts/ti/k3-am642-evm.dt.yaml:

>> cdns-usb@f900000: compatible: ['ti,am64-usb', 'ti,j721e-usb'] is too long

>>         From schema:

>> /home/gsaswath/src/ti-linux-kernel/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml

>>

>> ```

>>

>>

>> I have looked around for examples but I am unable to find a similar

>> case. I tried using anyOf in the following manner

> 

> You didn't look hard enough. There are lots.

>

>> ```

>> compatible:

>>      anyOf:

>>         - const: ti,am64-usb

>>         - const: ti,j721e-usb

> 

> This is really no different than a single 'enum' with the 2 values.

> 'anyOf' means one or more in the list are true, but more than 1 is

> impossible here.

> 

> If you have different possible lengths of values, then you need

> 'oneOf' for each case and then 'items' when you have a value with

> multiple entries:

> 

> oneOf:

>   - const: ti,j721e-usb

>   - items:

>       - const: ti,am64-usb

>       - const: ti,j721e-usb

> 


Thank you for the detailed explanation :) . I am sorry for not being
able figure this out on my own. I have sent a respin of this patch(v5).

Thanks,
Aswath

>> ```

>>

>> But I am getting an error

>>

>> ```

>> /home/gsaswath/src/ti-linux-kernel/Documentation/devicetree/bindings/usb/ti,j721e-usb.example.dt.yaml:

>> cdns_usb@4104000: compatible: 'anyOf' conditional failed, one must be fixed:

>>         Additional items are not allowed ('ti,j721e-usb' was unexpected)

>>         ['ti,am64-usb', 'ti,j721e-usb'] is too long

>>         'ti,j721e-usb' was expected

>> ```

>>

>> Doesn't anyof mean that the compatible strings can be used in any

>> combination ??

>>

>> Thanks,

>> Aswath

>>

>>>    reg:

>>>      description: module registers

>>>

>>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
index 388245b91a55..1a5c7bbb40d1 100644
--- a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
+++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
@@ -11,8 +11,9 @@  maintainers:
 
 properties:
   compatible:
-    items:
-      - const: ti,j721e-usb
+    enum:
+      - ti,j721e-usb
+      - ti,am64-usb
 
   reg:
     description: module registers