From: Shawn Guo <shawnguo@kernel.org>
To: "Guido Günther" <agx@sigxcpu.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Martin Kepplinger <martink@posteo.de>,
Angus Ainslie <angus@akkea.ca>,
Krzysztof Kozlowski <krzk@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Li Yang <leoyang.li@nxp.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Vinod Koul <vkoul@kernel.org>, Anson Huang <Anson.Huang@nxp.com>,
Michael Walle <michael@walle.cc>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org
Subject: Re: [PATCH v2 2/4] arm64: dts: imx8mq-librem5-devkit: Tweak pmic regulators
Date: Sun, 10 Jan 2021 20:24:40 +0800 [thread overview]
Message-ID: <20210110122440.GJ28365@dragon> (raw)
In-Reply-To: <a930ccca2f9a5dc49f24c46c3f4280c4de960f9d.1608216796.git.agx@sigxcpu.org>
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.
next prev parent reply other threads:[~2021-01-10 12:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-17 15:13 [PATCH v2 0/4] Config and device tree updates for the Librem 5 devkit Guido Günther
2020-12-17 15:13 ` [PATCH v2 1/4] arm64: defconfig: Enable Librem 5 devkit components Guido Günther
2020-12-19 12:23 ` Krzysztof Kozlowski
2020-12-17 15:13 ` [PATCH v2 2/4] arm64: dts: imx8mq-librem5-devkit: Tweak pmic regulators Guido Günther
2020-12-19 12:25 ` Krzysztof Kozlowski
2021-01-10 12:24 ` Shawn Guo [this message]
2020-12-17 15:13 ` [PATCH v2 3/4] arm64: dts: imx8mq-librem5-devkit: Disable snvs_rtc Guido Günther
2020-12-19 12:25 ` Krzysztof Kozlowski
2021-01-10 12:25 ` Shawn Guo
2020-12-17 15:13 ` [PATCH v2 4/4] arm64: dts: imx8mq-librem5-devkit: Drop custom clock settings Guido Günther
2020-12-19 12:24 ` Krzysztof Kozlowski
2021-01-10 12:25 ` Shawn Guo
2021-01-10 12:26 ` [PATCH v2 0/4] Config and device tree updates for the Librem 5 devkit Shawn Guo
2021-01-10 15:06 ` Guido Günther
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