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From: Laurent Pinchart <laurentp@cse-semaphore.com>
To: David Brownell <david-b@pacbell.net>
Subject: Re: [RFC] GPIO-based flow control in the cpm_uart driver
Date: Tue, 20 May 2008 15:00:35 +0200
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On Tuesday 20 May 2008 02:31, David Brownell wrote:
> On Tuesday 15 April 2008, Laurent Pinchart wrote:
> > Or maybe some kind of gpio_set_option() with flags specific to the=20
> > controller ? This could be used to enable open-drain outputs or interna=
l=20
> > pull-ups for instance.
>=20
> That presumes that the pin config is associated with the GPIO
> controller, rather than being an independent modules...
>=20
> In the cases that a platform has such an association, there
> should be no problem just using a platform-specific code to
> do the relevant magic.

To call GPIO chip specific functions, the driver needs a way to get the GPI=
O=20
chip associated with the GPIO.

=2D-=20
Laurent Pinchart
CSE Semaphore Belgium

Chaussee de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
=46 +32 (2) 387 42 75

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