linux-kernel - Re: [PATCH 2/3] ARM: dts: at91: sam9x60ek: classd: pull-down the L1 and L3 lines

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Message-ID: <20200617212819.GE3675@piout.net>
Date:   Wed, 17 Jun 2020 23:28:19 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        nicolas.ferre@...rochip.com, ludovic.desroches@...rochip.com,
        claudiu.beznea@...rochip.com
Subject: Re: [PATCH 2/3] ARM: dts: at91: sam9x60ek: classd: pull-down the L1
 and L3 lines

On 15/06/2020 12:55:24+0300, Codrin Ciubotariu wrote:
> The L1 and L3 lines drive NMOS transistors that are OFF with a low level.
> On the SAM9X60 EK board, if the pins corresponding to L1 and L3
> have pull-ups enabled, there is an extra 2 x 30uA power consumption.
> Use pull-downs for these 2 lines to remove the unnecessary power
> consumption.
> 
> Fixes: 1e5f532c2737 ("ARM: dts: at91: sam9x60: add device tree for soc and board")
> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
> ---
>  arch/arm/boot/dts/at91-sam9x60ek.dts | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
Applied, thanks.

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com