From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tony Lindgren <tony@atomide.com>
Subject: Re: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask
Date: Tue, 1 Dec 2015 16:46:24 -0800
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* Matthijs van Duin <matthijsvanduin@gmail.com> [151201 16:26]:
> On 2 December 2015 at 00:38, Tony Lindgren <tony@atomide.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

From mboxrd@z Thu Jan  1 00:00:00 1970
From: tony@atomide.com (Tony Lindgren)
Date: Tue, 1 Dec 2015 16:46:24 -0800
Subject: [PATCH 10/10] ARM: dts: Fix dm814x pinctrl address and mask
In-Reply-To: <CAALWOA9LtWxFmKB_My7cv4KODBEmyPm=dUb=tPuap79fm7FkxA@mail.gmail.com>
References: <1449013103-23238-1-git-send-email-tony@atomide.com>
 <1449013103-23238-11-git-send-email-tony@atomide.com>
 <CAALWOA9LtWxFmKB_My7cv4KODBEmyPm=dUb=tPuap79fm7FkxA@mail.gmail.com>
Message-ID: <20151202004623.GX23396@atomide.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

* Matthijs van Duin <matthijsvanduin@gmail.com> [151201 16:26]:
> On 2 December 2015 at 00:38, Tony Lindgren <tony@atomide.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