Re: [PATCH 1/4] dt-bindings: display: panel: Add Novatek NT37705

["Luca Weiss" <luca.weiss@fairphone.com>]

Hi Conor,

On Fri May 1, 2026 at 5:51 PM CEST, Conor Dooley wrote:
> On Fri, May 01, 2026 at 03:52:45PM +0200, Luca Weiss wrote:
>> Novatek NT37705 is a display driver IC used to drive AMOLED DSI panels.
>> 
>> Describe it and the panel in the Fairphone (Gen. 6) (BJ631JHM-T71-D900
>> from BOE) using it.
>> 
>> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
>> ---
>>  .../bindings/display/panel/novatek,nt37705.yaml    | 72 ++++++++++++++++++++++
>>  1 file changed, 72 insertions(+)
>> 
>> diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt37705.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt37705.yaml
>> new file mode 100644
>> index 000000000000..1c796599f6fc
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/panel/novatek,nt37705.yaml
>> @@ -0,0 +1,72 @@
>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/display/panel/novatek,nt37705.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Novatek NT37705-based DSI display panels
>> +
>> +maintainers:
>> +  - Luca Weiss <luca.weiss@fairphone.com>
>> +
>> +description:
>> +  The Novatek NT37705 is a generic DSI Panel IC used to control AMOLED panels.
>> +
>> +allOf:
>> +  - $ref: panel-common.yaml#
>> +
>> +properties:
>> +  compatible:
>> +    contains:
>> +      const: boe,bj631jhm-t71-d900
>
> Compatible doesn't match the filename, nor does the commit message match
> what you've got here. Sounds like you're missing a fallback to
> $filename.

The last times I was upstreaming panel drivers (Feb 2024 and June 2025),
this was the requested way of doing things.

Compatible being the company and model number making the actual panel
assembly (driver IC + touchscreen + glass etc), while the rest being
named after the driver IC manufacturer & number.

As seen in
* himax,hx83112b + djn,98-03057-6598b-i (Fairphone 3)
* himax,hx83112a + djn,9a-3r063-1102b (Fairphone 4)

Fairphone 5 panel (raydium,rm692e5) was upstreamed earlier and follows
different naming.

Has the way of doing things changed since then?

Regards
Luca