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Date: Wed, 3 Jan 2024 13:22:27 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Mark Hasemeyer <markhas@...omium.org>, LKML <linux-kernel@...r.kernel.org>
Cc: Sudeep Holla <sudeep.holla@....com>, Rob Herring <robh@...nel.org>,
 Andy Shevchenko <andriy.shevchenko@...el.com>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Raul Rangel
 <rrangel@...omium.org>, Tzung-Bi Shih <tzungbi@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Matthias Brugger <matthias.bgg@...il.com>, Rob Herring <robh+dt@...nel.org>,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v4 09/24] arm64: dts: mediatek: mt8173: Enable cros-ec-spi
 as wake source

Il 02/01/24 22:07, Mark Hasemeyer ha scritto:
> The cros_ec driver currently assumes that cros-ec-spi compatible device
> nodes are a wakeup-source even though the wakeup-source property is not
> defined.
> 
> Some Chromebooks use a separate wake pin, while others overload the
> interrupt for wake and IO. With the current assumption, spurious wakes
> can occur on systems that use a separate wake pin. It is planned to
> update the driver to no longer assume that the EC interrupt pin should
> be enabled for wake.
> 
> Add the wakeup-source property to all cros-ec-spi compatible device
> nodes to signify to the driver that they should still be a valid wakeup
> source.
> 
> Signed-off-by: Mark Hasemeyer <markhas@...omium.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>



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