Re: [PATCH v3 1/2] w1: add 1-wire master driver for IP block found in SGI ASICs

[Greg Kroah-Hartman]

On Sat, Aug 31, 2019 at 10:26:21AM +0200, Thomas Bogendoerfer wrote:
> Starting with SGI Origin machines nearly every new SGI ASIC contains
> an 1-Wire master. They are used for attaching One-Wire prom devices,
> which contain information about part numbers, revision numbers,
> serial number etc. and MAC addresses for ethernet interfaces.
> This patch adds a master driver to support this IP block.
> It also adds an extra field dev_id to struct w1_bus_master, which
> could be in used in slave drivers for creating unique device names.
> 
> Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@xxxxxxx>
> ---
>  drivers/w1/masters/Kconfig           |   9 +++
>  drivers/w1/masters/Makefile          |   1 +
>  drivers/w1/masters/sgi_w1.c          | 130 +++++++++++++++++++++++++++++++++++
>  include/linux/platform_data/sgi-w1.h |  13 ++++

Why platform data?  I thought that was the "old way", and the "proper
way" now is to use device tree?

thanks,

greg k-h