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[ Upstream commit0debed5b11] From Marek's log, the previous change modify the parent of rdev. https://lore.kernel.org/all/58b92e75-f373-dae7-7031-8abd465bb874@samsung.com/ In 'regulator_resolve_supply', it uses the parent DT node of rdev as the DT-lookup starting node. But the parent DT node may not exist. This will cause the NULL supply issue. This patch modify the parent of rdev back to the device that provides from 'regulator_config' in 'regulator_register'. Fixes:8f3cbcd6b4("regulator: core: Use different devices for resource allocation and DT lookup") Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Link: https://lore.kernel.org/r/1670981831-12583-1-git-send-email-u0084500@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.