linux-kernel - Re: [PATCH v2] pinctrl: Add SX150X GPIO Extender Pinctrl Driver

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Date:   Fri, 21 Oct 2016 00:08:01 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Neil Armstrong <narmstrong@...libre.com>,
        Andrey Smirnov <andrew.smirnov@...il.com>
Cc:     Peter Rosin <peda@...ntia.se>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Wei Chen <Wei.Chen@....com>, Roland Stigge <stigge@...com.de>,
        Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
Subject: Re: [PATCH v2] pinctrl: Add SX150X GPIO Extender Pinctrl Driver

On Tue, Sep 27, 2016 at 5:48 PM, Neil Armstrong <narmstrong@...libre.com> wrote:

> Since the I2C sx150x GPIO expander driver uses platform_data to manage
> the pins configurations, rewrite the driver as a pinctrl driver using
> pinconf to get/set pin configurations from DT or debugfs.
>
> The pinctrl driver is functionnally equivalent as the gpio-only driver
> and can use DT for pinconf. The platform_data confirmation is dropped.
>
> This patchset removed the gpio-only driver and selects the Pinctrl driver
> config instead. This patchset also migrates the gpio dt-bindings to pinctrl
> and add the pinctrl optional properties.
>
> The driver was tested with a SX1509 device on a BeagleBone black with
> interrupt support and on an X86_64 machine over an I2C to USB converter.
>
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>

I think we're ready to apply this to the GPIO and pinctrl trees.
Could you:

- Rebase on top of v4.9-rc1 (fails to apply for me)
- Add the collected ACKs
- See if Andrey can provide an additional Test tag
- Resend

Also please look at Andreys patches to see if there is some good
inspiration for further cleanups.

Yours,
Linus Walleij