linux-kernel - Re: [PATCH 0/5] Add support for WD MyCloud EX2 Ultra (+ versatile UART-based restart/poweroff drivers)

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Message-ID: <20190728132047.GA8718@xo-6d-61-c0.localdomain>
Date:   Sun, 28 Jul 2019 15:20:47 +0200
From:   Pavel Machek <pavel@....cz>
To:     Evgeny Kolesnikov <evgenyz@...il.com>
Cc:     Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Jason Cooper <jason@...edaemon.net>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/5] Add support for WD MyCloud EX2 Ultra (+ versatile
 UART-based restart/poweroff drivers)

On Mon 2019-07-22 21:53:00, Evgeny Kolesnikov wrote:
> This patchset consists of the DTS, which describes the WD MyCloud EX2 Ultra device,
> 'poweroff' and 'resert' drivers for power-managing MCUs connected to a board via UART
> (these drivers are more versatile than qnap-poweroff and could be used as a substitude),
> and DT bindings for these drivers.
> 
> The difference between uart-poweroff and qnap-poweroff is small, but important:
> uart-poweroff is able to send to an MCU a command of arbitrary length, and the command
> itself is defined in a DTS file for a specific device/board, thus making this driver
> applicable to wider range of devices.
> 
>  drivers/power/reset/uart-poweroff.c           | 155 +++++++++
>  drivers/power/reset/uart-restart.c            | 204 ++++++++++++

These twon really need to be combined somehow.

Plus... does it have mini-16550 driver in it? Should it use serdev instead?
										Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html