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

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Message-ID: <83197184-4138-5b21-13e8-3b64787abe46@axentia.se>
Date:   Tue, 27 Sep 2016 18:18:20 +0200
From:   Peter Rosin <peda@...ntia.se>
To:     Neil Armstrong <narmstrong@...libre.com>,
        <linus.walleij@...aro.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <Wei.Chen@....com>,
        <stigge@...com.de>, <vladimir_zapolskiy@...tor.com>
Subject: Re: [PATCH v2] pinctrl: Add SX150X GPIO Extender Pinctrl Driver

On 2016-09-27 17:48, Neil Armstrong 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>

Works here for sx1502 (without interrupts) on a custom arm board (SAMA5D3).

Tested-by: Peter Rosin <peda@...ntia.se>

Cheers,
Peter