linux-kernel - Re: [PATCH v2] pinctrl: baytrail: show output gpio state correctly on Intel Baytrail

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Date:	Tue, 28 Oct 2014 11:17:35 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	David Cohen <david.a.cohen@...ux.intel.com>
Cc:	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Felipe Balbi <balbi@...com>, stable <stable@...r.kernel.org>,
	Mathias Nyman <mathias.nyman@...ux.intel.com>
Subject: Re: [PATCH v2] pinctrl: baytrail: show output gpio state correctly on
 Intel Baytrail

On Tue, Oct 14, 2014 at 7:54 PM, David Cohen
<david.a.cohen@...ux.intel.com> wrote:

> Even if a gpio pin is set to output, we still need to set INPUT_EN
> functionality (by clearing INPUT_EN bit) to be able to read the pin's
> level.
>
> E.g. without this change, we'll always read low level state from sysfs.
>
> Cc: <stable@...r.kernel.org> # v3.14+
> Cc: Mathias Nyman <mathias.nyman@...ux.intel.com>
> Signed-off-by: David Cohen <david.a.cohen@...ux.intel.com>
> ---
>
> v1 to v2: improved patch's body description as requested by Felipe Balbi

This v2 version applied for fixes with Felipe's review tag.

Sorry for slow catching up with email :(

Yours,
Linus Walleij
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