linux-kernel - Re: [PATCH] arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2

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Message-ID: <7e7ee4244ababc0a46e0875222c7e37d@walle.cc>
Date:   Wed, 15 Sep 2021 14:05:26 +0200
From:   Michael Walle <michael@...le.cc>
To:     Heiko Thiery <heiko.thiery@...il.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Joakim Zhang <qiangqing.zhang@....com>,
        Shengjiu Wang <shengjiu.wang@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Frieder Schrempf <frieder.schrempf@...tron.de>
Subject: Re: [PATCH] arm64: dts: imx8mm-kontron-n801x-som: do not allow to
 switch off buck2

Am 2021-09-15 14:03, schrieb Heiko Thiery:
> The buck2 output of the PMIC is the VDD core voltage of the cpu.
> Switching off this will poweroff the CPU. Add the 'regulator-always-on'
> property to avoid this.

Mh, have this ever worked? Is there a commit which introduced a 
regression?

-michael

> Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and
> baseboards")
> Signed-off-by: Heiko Thiery <heiko.thiery@...il.com>