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From: Adrian Ratiu <adrian.ratiu@collabora.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, kernel@collabora.com,
	"kernelci.org bot" <bot@kernelci.org>,
	Guillaume Tucker <guillaume.tucker@collabora.com>,
	Enric Balletbo Serra <eballetbo@gmail.com>
Subject: [PATCH] arm64: defconfig: enable regulator to fix mt8173 regression
Date: Mon, 11 Oct 2021 15:53:01 +0300	[thread overview]
Message-ID: <20211011125301.3440033-1-adrian.ratiu@collabora.com> (raw)

A regression was introduced on some mediatek boards starting with
v5.15-rc1 in commit 109fd20601e2b ("arm64: dts: mediatek: mt8173:
Add domain supply for mfg_async") which effectively changed the
regulator from the always-on dummy to DA9211 without explicitely
enabling it, causing failures like the these caught by KernelCI
on Hana Chromebooks [1]:

mtk-power-controller 10006000.syscon:power-controller: supply domain not found, using dummy regulator
mtu3 11271000.usb: supply vbus not found, using dummy regulator
xhci-mtk 11270000.usb: supply vbus not found, using dummy regulator

There might be another bug linking these power domains in the
mediatek PM driver, but that is a separate issue wich needs
addressing, for now just fix the obvious regression due to the
new regulator requirement.

[1] https://github.com/kernelci/kernelci-project/issues/66
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Cc: Guillaume Tucker <guillaume.tucker@collabora.com>
Suggested-by: Enric Balletbo Serra <eballetbo@gmail.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
---
 arch/arm64/configs/defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 156d96afbbfc..4901cc1213bb 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -616,6 +616,7 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_REGULATOR_AXP20X=y
 CONFIG_REGULATOR_BD718XX=y
 CONFIG_REGULATOR_BD9571MWV=y
+CONFIG_REGULATOR_DA9211=y
 CONFIG_REGULATOR_FAN53555=y
 CONFIG_REGULATOR_GPIO=y
 CONFIG_REGULATOR_HI6421V530=y
-- 
2.33.0


             reply	other threads:[~2021-10-11 12:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-11 12:53 Adrian Ratiu [this message]
2021-10-15 16:20 ` Guillaume Tucker
2021-10-19 14:38 ` AngeloGioacchino Del Regno
2021-10-29 12:42   ` AngeloGioacchino Del Regno

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