linux-kernel - Re: [PATCH] arm64: dts: mt8173: Power on panel regulator on boot

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <abef0fe6-ef80-283f-cfeb-e0a4366691fb@gmail.com>
Date:   Mon, 29 May 2023 18:16:40 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Pin-yen Lin <treapking@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Doug Anderson <dianders@...omium.org>
Subject: Re: [PATCH] arm64: dts: mt8173: Power on panel regulator on boot



On 17/04/2023 14:39, Pin-yen Lin wrote:
> Add "regulator-boot-on" to "panel_fixed_3v3" to save time on powering
> the regulator during boot.  Also add "off-on-delay-us" to the node to
> make sure the regulator never violates the panel timing requirements.
> 
> Signed-off-by: Pin-yen Lin <treapking@...omium.org>
> 

Applied, thanks!

> ---
> 
>   arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
> index d77f6af19065..03d1ab2ca820 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
> @@ -96,6 +96,8 @@ panel_fixed_3v3: regulator1 {
>   		regulator-min-microvolt = <3300000>;
>   		regulator-max-microvolt = <3300000>;
>   		enable-active-high;
> +		regulator-boot-on;
> +		off-on-delay-us = <500000>;
>   		gpio = <&pio 41 GPIO_ACTIVE_HIGH>;
>   		pinctrl-names = "default";
>   		pinctrl-0 = <&panel_fixed_pins>;