linux-kernel - Re: [PATCH v2 3/8] arm64: dts: mediatek: cherry: Add keyboard mapping for the top row

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Message-ID: <CAGXv+5E_Q6Z9RA6VQDHyn6E9xb-C0AmEx7JR8Lc65ofT1YE0sw@mail.gmail.com>
Date:   Mon, 25 Jul 2022 15:59:24 +0800
From:   Chen-Yu Tsai <wenst@...omium.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     matthias.bgg@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/8] arm64: dts: mediatek: cherry: Add keyboard mapping
 for the top row

On Thu, Jul 21, 2022 at 10:52 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> Chromebooks' embedded keyboards differ from standard layouts for the
> top row, as this one doesn't have the standard function keys but
> shortcuts instead: map these keys to achieve the functionality that
> is pictured on the printouts.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

Reviewed-by: Chen-Yu Tsai <wenst@...omium.org>
Tested-by: Chen-Yu Tsai <wenst@...omium.org>

> ---
>  .../boot/dts/mediatek/mt8195-cherry.dtsi      | 30 +++++++++++++++++++
>  1 file changed, 30 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> index 87ac2b4f9814..2853f7f76c90 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> @@ -821,3 +821,33 @@ &xhci3 {
>
>  #include <arm/cros-ec-keyboard.dtsi>
>  #include <arm/cros-ec-sbs.dtsi>
> +
> +&keyboard_controller {
> +       function-row-physmap = <
> +               MATRIX_KEY(0x00, 0x02, 0)       /* T1 */
> +               MATRIX_KEY(0x03, 0x02, 0)       /* T2 */
> +               MATRIX_KEY(0x02, 0x02, 0)       /* T3 */
> +               MATRIX_KEY(0x01, 0x02, 0)       /* T4 */
> +               MATRIX_KEY(0x03, 0x04, 0)       /* T5 */
> +               MATRIX_KEY(0x02, 0x04, 0)       /* T6 */
> +               MATRIX_KEY(0x01, 0x04, 0)       /* T7 */
> +               MATRIX_KEY(0x02, 0x09, 0)       /* T8 */
> +               MATRIX_KEY(0x01, 0x09, 0)       /* T9 */
> +               MATRIX_KEY(0x00, 0x04, 0)       /* T10 */

I wonder if we want to add the sleep button to this list, since it is
technically part of the first row.

ChenYu