[PATCH RFC 03/22] dt-bindings: phy: Add Apple Type-C PHY

[Sven Peter]

On 22.08.25 01:00, Rob Herring wrote:
> On Thu, Aug 21, 2025 at 11:33 AM Janne Grunau <j at jannau.net> wrote:
>>
>> On Thu, Aug 21, 2025 at 03:38:55PM +0000, Sven Peter wrote:

[...]

>>> +
>>> +properties:
>>> +  compatible:
>>> +    enum:
>>> +      - apple,t6000-atcphy
>>> +      - apple,t6000-atcphy-dp-only # PHY hardwired to DP-to-HDMI converter on M2 Pro MacBook
>>
>> The comment is misleading, "t6000-atcphy-dp-only" would be for M1
>> Pro/Max Macbooks. M2 Pro/Max Macbooks use the same design so the
>> corresponding "apple,t6020-atcphy-dp-only" compatible is missing.
>> I'm not sure this is the correct design though as the HW block is
>> identical to "apple,t6000-atcphy".
>> I think it might be better to have either the DRM KMS driver or a
>> custom DP->HDMI drm_bridge switch the mode to DP-only.
>> Or atcphy could initialize itself to DP-only based on the available
>> ports.
> 
> Doesn't sound like this should be a different compatible. There's a
> 'phy-mode' property or you can define the mode in the 'phys' cells for
> the DP controller.

Okay, makes sense. I'll drop the compatible.

I've only found "intel,phy-mode" inside bindings/phy but we can figure 
this out later once we actually get to upstreaming what's required for 
DisplayPort and mostly focus on USB3 for this series.


Thanks


Sven