linux-kernel - Re: [RFC PATCH 2/4] pinctrl: at91: fix sam9x5 debounce/deglitch functions

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Message-ID: <CACRpkdbbpe8RbZ3AZX9YjsqT_GOo3aaD3YAcJT7toNx6E6VPgA@mail.gmail.com>
Date:	Fri, 27 Sep 2013 14:12:19 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Boris BREZILLON <b.brezillon@...rkiz.com>
Cc:	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ian.campbell@...rix.com>,
	Rob Landley <rob@...dley.net>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Grant Likely <grant.likely@...aro.org>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Richard Genoud <richard.genoud@...il.com>,
	Jiri Kosina <jkosina@...e.cz>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC PATCH 2/4] pinctrl: at91: fix sam9x5 debounce/deglitch functions

On Fri, Sep 13, 2013 at 9:47 AM, Boris BREZILLON
<b.brezillon@...rkiz.com> wrote:

> Replace at91_mux_get_deglitch with at91_mux_pio3_get_deglitch when using
> sam9x5 (pio3) IP.
> at91_mux_get_deglitch only test the activation of the "Input Filter" which
> may be overloaded by the activation of the "Input Filter Slow Clock" to use
> the input filter as a debounce filter instead of a deglitch filter.
>
> Fix at91_mux_pio3_get_debounce to test the activation of the Input Filter
> before testing the activation of the debounce filter (Input Filter Slow
> Clock depends on Input Filter).
>
> Fix at91_mux_pio3_set_debounce function to avoid disabling the deglitch
> filter ("Input Filter") when debounce filter is disabled.
>
> Signed-off-by: Boris BREZILLON <b.brezillon@...rkiz.com>

Patch applied with Jean-Christophe's ACK.

Yours,
Linus Walleij
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