linux-kernel - Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask

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Message-ID: <20151202004623.GX23396@atomide.com>
Date:	Tue, 1 Dec 2015 16:46:24 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Matthijs van Duin <matthijsvanduin@...il.com>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Brian Hutchinson <b.hutchman@...il.com>,
	Delio Brignoli <dbrignoli@...ioscience.com>,
	Neil Armstrong <narmstrong@...libre.com>,
	Philipp Rosenberger <ilu@...utronix.de>
Subject: Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask

* Matthijs van Duin <matthijsvanduin@...il.com> [151201 16:26]:
> On 2 December 2015 at 00:38, Tony Lindgren <tony@...mide.com> wrote:
> > -                                       pinctrl-single,function-mask = <0x300ff>;
> > +                                       pinctrl-single,function-mask = <0x707ff>;
> 
> Reminder that silicon revision 2.1 and older require input enabled
> (bit 18 set) for all 3.3V I/Os to avoid cumulative hardware damage.
> (Errata advisory 2.1.87)

Ouch. We should probably have separate PIN_INPUT_3V3 and PIN_OUTPUT_3V3
dts macros that ensure that?

Regards,

Tony
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