Re: [PATCH v2] arm64: defconfig: enable regulator to fix mt8173 regression

[AngeloGioacchino Del Regno]

Il 29/10/21 17:39, Adrian Ratiu ha scritto:
> A regression was introduced on some mediatek boards starting with
> v5.15-rc1 in commit 109fd20601e2 ("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 caught by KernelCI on Hana
> Chromebooks [1] for previously used dummies like:
>
> 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
> Fixes: 109fd20601e2 ("arm64: dts: mediatek: mt8173: Add domain supply for mfg_async")
> Reported-by: "kernelci.org bot" <bot@xxxxxxxxxxxx>
> Cc: Guillaume Tucker <guillaume.tucker@xxxxxxxxxxxxx>
> Suggested-by: Enric Balletbo Serra <eballetbo@xxxxxxxxx>
> Signed-off-by: Adrian Ratiu <adrian.ratiu@xxxxxxxxxxxxx>

Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>