Re: [RFC][DT] Guidance on device tree property prefix for TM16XX-class LED display controllers

[Andy Shevchenko <andriy.shevchenko@intel.com>]

On Mon, Jun 16, 2025 at 12:05:11PM -0400, Jean-Francois Lessard wrote:
> Hi all,
> 
> I’m working on preparing a new driver and device tree binding for auxiliary
> LED display controllers of the TM16XX class, and I’d like to request
> guidance on property naming conventions before submitting a formal patch
> series.

> The driver (tentatively named tm16xx) supports LED controller chips that
> share a common hardware design and programming model, produced by multiple
> vendors, including:
> 
> Titan Micro Electronics: TM1618, TM1620, TM1628, TM1650
> 
> FUDA HISI Microelectronics: FD620, FD628, FD650, FD655, FD6551
> 
> Princeton Technology Corp: PT6964
> 
> HBS: HBS658
> 
> tm16xx,digits = /bits/ 8 <0 1 2 3>;
> tm16xx,segment-mapping = /bits/ 8 <0 1 2 3 4 5 6>;
> tm16xx,transposed;

I'm not sure I got what the controller is. Is it for 7-segment like display or
is it something else?

Because it might be that LED subsystem is not the best for it to begin with.

-- 
With Best Regards,
Andy Shevchenko