linux-kernel - Re: [PATCH V3 3/3] mfd: stmpe: Update DT support in stmpe driver

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Message-ID: <CAH+eYFCshghQauBdn1rLQ-sKG=Bxa_0XpJsry60TAD3mibNOFA@mail.gmail.com>
Date:	Tue, 27 Nov 2012 20:55:54 +0100
From:	Rabin Vincent <rabin@....in>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Lee Jones <lee.jones@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	sameo@...ux.intel.com, devicetree-discuss@...ts.ozlabs.org,
	spear-devel@...t.st.com, linux-kernel@...r.kernel.org,
	l.fu@...gutronix.de
Subject: Re: [PATCH V3 3/3] mfd: stmpe: Update DT support in stmpe driver

2012/11/27 Viresh Kumar <viresh.kumar@...aro.org>:
> On 27 November 2012 14:10, Lee Jones <lee.jones@...aro.org> wrote:
> I haven't seen this in any of SPEAr boards i have worked on. Maybe Rabin
> would have, that's why he added that part of code :)
>
> @Rabin/Linus: Do you remember why have you added this in stmpe driver:
>
> +       if (stmpe->pdata->irq_invert_polarity)
> +               icr ^= STMPE_ICR_LSB_HIGH;
> +
>
> Does somebody actually need it?

It was (as irq_rev_pol) part of Luotao Fu's proposed STMPE811 patchset
(https://patchwork.kernel.org/patch/106173/) which I integrated into my
version of the STMPE driver, which didn't have it in its initial version
(https://patchwork.kernel.org/patch/103273/).

It's not something _I_ ever used.
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