linux-kernel - Re: [PATCH v5 07/12] arm64: dts: mediatek: set vmc regulator as always on

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Message-ID: <ce6a9e78-efae-c430-c990-ceafdfc7be41@collabora.com>
Date:   Tue, 11 Apr 2023 10:23:43 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     amergnat@...libre.com, Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Chaotian Jing <chaotian.jing@...iatek.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Wenbin Mei <wenbin.mei@...iatek.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Zhiyong Tao <zhiyong.tao@...iatek.com>,
        Bernhard Rosenkränzer <bero@...libre.com>
Cc:     linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-mmc@...r.kernel.org,
        linux-gpio@...r.kernel.org,
        Alexandre Bailon <abailon@...libre.com>,
        Fabien Parent <fparent@...libre.com>,
        Amjad Ouled-Ameur <aouledameur@...libre.com>
Subject: Re: [PATCH v5 07/12] arm64: dts: mediatek: set vmc regulator as
 always on

Il 07/04/23 14:59, amergnat@...libre.com ha scritto:
> From: Fabien Parent <fparent@...libre.com>
> 
> MSDC1 IP block is powered by VMC. Make sure it is always on.
> 

Can't we set vmc as parent of vemc?

> Signed-off-by: Fabien Parent <fparent@...libre.com>
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8365-evk.dts | 5 +++++
>   1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8365-evk.dts b/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> index cd920d09c3fe..1c36d8f19525 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> +++ b/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> @@ -137,6 +137,11 @@ &mt6357_pmic {
>   	#interrupt-cells = <2>;
>   };
>   
> +/* Needed by MSDC1 */
> +&mt6357_vmc_reg {
> +	regulator-always-on;
> +};
> +
>   &pio {
>   	gpio_keys: gpio-keys-pins {
>   		pins {
>