linux-kernel - Re: [PATCH 09/16] pinctrl: madera: Add driver for Cirrus Logic Madera codecs

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Date:   Mon, 10 Apr 2017 12:56:58 -0500
From:   Rob Herring <robh@...nel.org>
To:     Richard Fitzgerald <rf@...nsource.wolfsonmicro.com>
Cc:     linus.walleij@...aro.org, gnurou@...il.com, tglx@...utronix.de,
        jason@...edaemon.net, lee.jones@...aro.org, broonie@...nel.org,
        alsa-devel@...a-project.org, patches@...nsource.wolfsonmicro.com,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/16] pinctrl: madera: Add driver for Cirrus Logic
 Madera codecs

On Wed, Apr 05, 2017 at 11:07:57AM +0100, Richard Fitzgerald wrote:
> These codecs have a variable number of I/O lines each of which
> is individually selectable to a wide range of possible functions.
> 
> The functionality is slightly different from the traditional muxed
> GPIO since most of the functions can be mapped to any pin (and even
> the same function to multiple pins). Most pins have a dedicated
> "alternate" function that is only available on that pin. The
> alternate functions are usually a group of signals, though it is
> not always necessary to enable the full group, depending on the
> alternate function and how it is to be used. The mapping between
> alternate functions and GPIO pins varies between codecs depending
> on the number of alternate functions and available pins.
> 
> Signed-off-by: Richard Fitzgerald <rf@...nsource.wolfsonmicro.com>
> ---
>  .../bindings/pinctrl/cirrus,madera-pinctrl.txt     |  103 ++

As Linus said, separate patch is preferred. But I don't have any other 
comments, so I'm not going to require it:

Acked-by: Rob Herring <robh@...nel.org>

>  MAINTAINERS                                        |    2 +
>  drivers/pinctrl/Kconfig                            |   22 +
>  drivers/pinctrl/Makefile                           |    1 +
>  drivers/pinctrl/pinctrl-madera.c                   | 1092 ++++++++++++++++++++
>  5 files changed, 1220 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/cirrus,madera-pinctrl.txt
>  create mode 100644 drivers/pinctrl/pinctrl-madera.c