On Thu, Aug 25, 2022 at 01:32:50PM +0200, Marek Szyprowski wrote:
> This patch landed recently in linux next as commit 8a866d527ac0
> ("regulator: core: Resolve supply name earlier to prevent double-init").
> Unfortunately it breaks booting of Samsung Exynos 5800 based Peach-Pi
> (arch/arm/boot/dts/exynos5800-peach-pi.dts) and Peach-Pit
> (arch/arm/boot/dts/exynos5420-peach-pit.dts) Chromebooks. The last
> message in the kernel log is a message about disabling 'vdd_1v2'
> regulator. This regulator is not used directly, however it is a supply
> for other critical regulators.
This suggests that supplies are ending up not getting bound. Could you
perhaps add logging to check that we're attempting to resolve the supply
(in the
+ if ((rdev->supply_name && !rdev->supply) &&
+ (rdev->constraints->always_on ||
+ rdev->constraints->boot_on)) {
block)? I'd also note that it's useful to paste the actual error
messages you're seeing rather than just a description of them.
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