linux-kernel - Re: [PATCH v2 5/7] Input: mt6779-keypad

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Message-ID: <47f90532-c115-61ad-1203-5658430b6a7a@collabora.com>
Date:   Wed, 27 Jul 2022 09:34:24 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Mattijs Korpershoek <mkorpershoek@...libre.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Fabien Parent <fparent@...libre.com>,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        Fabien Parent <parent.f@...il.com>
Subject: Re: [PATCH v2 5/7] Input: mt6779-keypad - support double keys matrix

Il 26/07/22 14:56, Mattijs Korpershoek ha scritto:
> MediaTek keypad has 2 modes of detecting key events:
> - single key: each (row, column) can detect one key
> - double key: each (row, column) is a group of 2 keys
> 
> Double key support exists to minimize cost, since it reduces the number
> of pins required for physical keys.
> 
> Double key is configured by setting BIT(0) of the KP_SEL register.
> 
> Enable double key matrix support based on the mediatek,keys-per-group
> device tree property.
> 
> Signed-off-by: Mattijs Korpershoek <mkorpershoek@...libre.com>

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