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Date:   Sun, 10 Jan 2021 20:24:40 +0800
From:   Shawn Guo <shawnguo@kernel.org>
To:     Guido =?iso-8859-1?Q?G=FCnther?= <agx@sigxcpu.org>
Cc:     Rob Herring <robh+dt@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
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        Catalin Marinas <catalin.marinas@arm.com>,
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        Geert Uytterhoeven <geert+renesas@glider.be>,
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        phone-devel@vger.kernel.org
Subject: Re: [PATCH v2 2/4] arm64: dts: imx8mq-librem5-devkit: Tweak pmic
 regulators
Message-ID: <20210110122440.GJ28365@dragon>
References: <cover.1608216796.git.agx@sigxcpu.org>
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On Thu, Dec 17, 2020 at 04:13:13PM +0100, Guido Günther wrote:
> BUCK3 needs a regulator-enable-ramp-delay since otherwise the board
> freezes on etnaviv probe. With this pgc_gpu suspends and resumes as
> expected. This must have been always broken since gpcv2 support was
> enabled.
> 
> We also enable all the regulators needed for Deep Sleep Mode (DSM) as
> always-on:
> 
> - VDD_SOC supplied by BUCK1
> - VDDA_1P8 supplied by BUCK7
> - VDDA_0P9 supplied by LDO4
> - VDDA_DRAM supplied by LDO3
> - NVCC_DRAM supplied by BUCK8
> - VDD_DRAM supplied by BUCK5
> 
> Finally LDO5 and LDO6 provide VDD_PHY_1V8 and VDD_PHY_0V9 used by the
> SOCs MIPI, HDMI and USB IP cores. While we would in theory be able to
> turn these off (and I've tested that or LDO6 and mipi with USB disabled)
> it is of little practical use atm since USB doesn't runtime suspend so
> let's revisit this at a later point.
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>

Applied, thanks.