linux-kernel - Re: [PATCH 1/1] serial: 8250_dw: Fix get

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Message-ID: <3836329.RsbZqYqPAB@wuerfel>
Date:	Wed, 25 Feb 2015 20:21:25 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Jonathan Richardson <jonathar@...adcom.com>
Cc:	Dmitry Torokhov <dtor@...gle.com>,
	Anatol Pomazau <anatol@...gle.com>,
	Scott Branden <sbranden@...adcom.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH 1/1] serial: 8250_dw: Fix get_mctrl behaviour

On Wednesday 25 February 2015 11:04:16 Jonathan Richardson wrote:
> +- msr-override : array of strings to be used to override the individual
> +  modem status signals for DCD, DSR, CTS, and RI.  If the property is not
> +  present, the individual signals are obtained from the modem status register.
> +  Strings accepted are "dcd", "dsr", "cts", and "ri". If "dcd", "dsr", or
> +  "cts" are present, these signals will always be reported as active. If
> +  "ri" is present, this signal will always be reported as inactive.
> 

Did you copy this definition from another driver? If not, we should try
to come up with a more natural way to do it. How about defining four
boolean properties instead, like

	dcd-override
	dsr-override
	cts-override
	ri-override

Simplifies the parser and the binding.

	Arnd
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