linux-kernel - Re: [PATCH 2/3] cs5535-gpio: Use set

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Date:	Sat, 27 Feb 2010 12:18:29 -0600
From:	Ben Gardner <gardner.ben@...il.com>
To:	David Brownell <david-b@...bell.net>
Cc:	linux-kernel@...r.kernel.org,
	Andres Salomon <dilinger@...labora.co.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Jani Nikula <ext-jani.1.nikula@...ia.com>
Subject: Re: [PATCH 2/3] cs5535-gpio: Use set_direction

>> Use the set_direction method instead of direction_input and direction_output
>> to enable use of the bidirectional mode.
>
> Any reason you aren't making the standard behavior be:
>
>        input ... input enabled
>        output ... both enabled
>
> That would make this driver behave like most other GPIO hardware, which
> would help you avoid subtle problems.
>
> Would there be any technical downside to that approach?

That sounds like a good approach.

Ben
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