Re: [PATCH 0/14] Refactor Ralink Pinctrl and Add Documentation

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Hi Arinç,

On Wed, Apr 13, 2022 at 8:08 AM Arınç ÜNAL <arinc.unal@xxxxxxxxxx> wrote:
>
> Hey everyone.
>
> This patch series brings complete refactoring to the Ralink pinctrl driver
> and its subdrivers.
>
> The mt7620 pinctrl subdriver supports MT7628 and MT7688 SoCs along with
> MT7620. These two share the same pin layout. The code used for MT7628 and
> MT7688 is renamed from MT7628/mt7628an to MT76X8.
>
> Ralink pinctrl driver is called rt2880 which is the name of the Ralink
> RT2880 SoC. A subdriver for the Ralink RT2880 SoC is called rt288x. Rename
> rt2880 to ralink.
>
> Rename code from pinmux to pinctrl for where the operation is not about the
> muxing of pins.
>
> Rename rt288x pinctrl subdriver for the RT2880 SoC to rt2880.
>
> Variables for functions include "grp" on the Ralink MT7620 and MT7621
> subdrivers. Rename them to "func" instead as they define the functions for
> the pin groups. This is already the case for the other 3 subdrivers;
> RT2880, RT305x, RT3883.
>
> Fix Kconfig to call the subdrivers, well, subdrivers.
>
> Add new compatible strings for each subdriver and update DT binding
> accordingly.
>
> Add Ralink pinctrl driver to MAINTAINERS and add me and Sergio as the
> maintainers.
>
> Finally, fix the current rt2880 documentation and add binding for all of
> the subdrivers.
>
> I have the patches here should anyone prefer to read them there:
> https://github.com/arinc9/linux/commits/ralink-pinctrl-refactor
>
> Ralink pinctrl driver and the subdrivers were compile tested.
> MT7621 pinctrl subdriver was tested on a private mt7621 board.
> YAML bindings checked with:
> ARCH=mips CROSS_COMPILE=mips-linux-gnu- make dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/pinctrl/ -j$(nproc)
>
> Arınç ÜNAL (14):
>   pinctrl: ralink: rename MT7628(an) functions to MT76X8
>   pinctrl: ralink: rename pinctrl-rt2880 to pinctrl-ralink
>   pinctrl: ralink: rename pinmux functions to pinctrl
>   pinctrl: ralink: rename pinctrl-rt288x to pinctrl-rt2880
>   pinctrl: ralink: rename variable names for functions on MT7620 and MT7621
>   pinctrl: ralink: rename driver names to subdrivers
>   MAINTAINERS: add Ralink pinctrl driver

For all these rename stuff and MAINTAINERS change:

Reviewed-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx>

>   pinctrl: ralink: add new compatible strings for each pinctrl subdriver
>   mips: dts: ralink: mt7621: use the new compatible string for MT7621 pinctrl
>   dt-bindings: pinctrl: rt2880: fix binding name, pin groups and functions
>   dt-bindings: pinctrl: add binding for Ralink MT7620 pinctrl
>   dt-bindings: pinctrl: add binding for Ralink MT7621 pinctrl
>   dt-bindings: pinctrl: add binding for Ralink RT305X pinctrl
>   dt-bindings: pinctrl: add binding for Ralink RT3883 pinctrl

I think you cannot change compatible strings because you have to be
compatible with previous stuff. That is the reason why when I
refactored all of this stuff from 'arch/mips/ralink' into
'drivers/pinctrl' I maintained the same for all of them and only
created one binding for all. I know that these SoCs are mostly used in
openWRT and the way of doing things there is that when a new version
is released a new dtb is also compiled so I understand the motivation
of the change itself. In any case, Rob has the last word here, not me
:).

Thanks for doing this.

Best regards,
    Sergio Paracuellos




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