linux-kernel - Re: [PATCH v2 1/3] input: sun4i-a10-lradc-keys: Add support for A83T

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Message-ID: <20170621203502.ng7auh6vfmibobwo@flea.lan>
Date:   Wed, 21 Jun 2017 22:35:02 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Ziping Chen <techping.chan@...il.com>
Cc:     wens@...e.org, robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 1/3] input: sun4i-a10-lradc-keys: Add support for A83T

On Tue, Jun 20, 2017 at 09:44:43PM +0800, Ziping Chen wrote:
> From: Ziping Chen <techping.chan@...il.com>
> 
> Allwinner A83T SoC has a low res adc like the one
> in Allwinner A10 SoC, however, the A10 SoC's vref
> of lradc internally is divided by 2/3 and the A83T
> SoC's isn't, thus add a hardware variant for it to
> be compatible with various devices.

Where did you get that info from?

Judging from the user manual, the threshold is actually set to 3/4,
and not 2/3, but there's still one.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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