[v1] Arm China Linlon-D6 display controller support

[PATCH 1/3] dt-bindings: vendor-prefixes: Add Arm Technology (China) Co., Ltd.

Posted by Cunyuan Liu 3 weeks, 6 days ago

Add "armchina" vendor prefix for Arm Technology (China) Co., Ltd.

Link: https://www.armchina.com/

Signed-off-by: Cunyuan Liu <cunyuan.liu@cixtech.com>
---
 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..c7ca7f43925b 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -172,6 +172,8 @@ patternProperties:
     description: ARM Ltd.
   "^armadeus,.*":
     description: ARMadeus Systems SARL
+  "^armchina,.*":
+    description: Arm Technology (China) Co., Ltd.
   "^armsom,.*":
     description: ArmSoM Technology Co., Ltd.
   "^arrow,.*":
-- 
2.53.0

Re: [PATCH 1/3] dt-bindings: vendor-prefixes: Add Arm Technology (China) Co., Ltd.

Posted by Rob Herring (Arm) 3 weeks, 6 days ago

On Wed, 11 Mar 2026 13:55:04 +0800, Cunyuan Liu wrote:
> Add "armchina" vendor prefix for Arm Technology (China) Co., Ltd.
> 
> Link: https://www.armchina.com/
> 
> Signed-off-by: Cunyuan Liu <cunyuan.liu@cixtech.com>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

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

Re: [PATCH 1/3] dt-bindings: vendor-prefixes: Add Arm Technology (China) Co., Ltd.

Posted by Conor Dooley 3 weeks, 6 days ago

On Wed, Mar 11, 2026 at 01:55:04PM +0800, Cunyuan Liu wrote:
> Add "armchina" vendor prefix for Arm Technology (China) Co., Ltd.

Is this not a subsidiary of arm, that should just use the arm prefix?

> 
> Link: https://www.armchina.com/
> 
> Signed-off-by: Cunyuan Liu <cunyuan.liu@cixtech.com>
> ---
>  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..c7ca7f43925b 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> @@ -172,6 +172,8 @@ patternProperties:
>      description: ARM Ltd.
>    "^armadeus,.*":
>      description: ARMadeus Systems SARL
> +  "^armchina,.*":
> +    description: Arm Technology (China) Co., Ltd.
>    "^armsom,.*":
>      description: ArmSoM Technology Co., Ltd.
>    "^arrow,.*":
> -- 
> 2.53.0
>

Re: [PATCH 1/3] dt-bindings: vendor-prefixes: Add Arm Technology (China) Co., Ltd.

Posted by Liviu Dudau 3 weeks, 6 days ago

On Wed, Mar 11, 2026 at 06:42:23PM +0000, Conor Dooley wrote:
> On Wed, Mar 11, 2026 at 01:55:04PM +0800, Cunyuan Liu wrote:
> > Add "armchina" vendor prefix for Arm Technology (China) Co., Ltd.
> 
> Is this not a subsidiary of arm, that should just use the arm prefix?

It is more complicated than that. For what the kernel is interested in
they should be treated as a separate entity as their products do not
carry automatic compatibility with arm's ones.

Best regards,
Liviu

> 
> > 
> > Link: https://www.armchina.com/
> > 
> > Signed-off-by: Cunyuan Liu <cunyuan.liu@cixtech.com>
> > ---
> >  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..c7ca7f43925b 100644
> > --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> > +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> > @@ -172,6 +172,8 @@ patternProperties:
> >      description: ARM Ltd.
> >    "^armadeus,.*":
> >      description: ARMadeus Systems SARL
> > +  "^armchina,.*":
> > +    description: Arm Technology (China) Co., Ltd.
> >    "^armsom,.*":
> >      description: ArmSoM Technology Co., Ltd.
> >    "^arrow,.*":
> > -- 
> > 2.53.0
> > 



-- 
====================
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    ¯\_(ツ)_/¯

Re: [PATCH 1/3] dt-bindings: vendor-prefixes: Add Arm Technology (China) Co., Ltd.

Posted by Krzysztof Kozlowski 3 weeks, 6 days ago

On 11/03/2026 20:15, Liviu Dudau wrote:
> On Wed, Mar 11, 2026 at 06:42:23PM +0000, Conor Dooley wrote:
>> On Wed, Mar 11, 2026 at 01:55:04PM +0800, Cunyuan Liu wrote:
>>> Add "armchina" vendor prefix for Arm Technology (China) Co., Ltd.
>>
>> Is this not a subsidiary of arm, that should just use the arm prefix?
> 
> It is more complicated than that. For what the kernel is interested in
> they should be treated as a separate entity as their products do not
> carry automatic compatibility with arm's ones.

Yeah, it's joint venture, so not the same company. Also, according to
their website they have trademark agreement to use the name "Arm", FWIW.

Best regards,
Krzysztof