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[ Upstream commit0b26fa8a02] After enabling CONFIG_REGULATOR_DEBUG=y we observe below debug logs. Changes help link VDDCPU pwm regulator to 12V regulator supply instead of dummy regulator. [ 11.602281] pwm-regulator regulator-vddcpu: Looking up pwm-supply property in node /regulator-vddcpu failed [ 11.602344] VDDCPU: supplied by regulator-dummy [ 11.602365] regulator-dummy: could not add device link regulator.11: -ENOENT [ 11.602548] VDDCPU: 721 <--> 1022 mV at 1022 mV, enabled Fixes:88d537bc92("arm64: dts: meson: convert meson-sm1-odroid-c4 to dtsi") Fixes:700ab8d839("arm64: dts: khadas-vim3: add support for the SM1 based VIM3L") Fixes:3d9e764830("arm64: dts: meson-sm1-sei610: enable DVFS") Fixes:976e920183("arm64: dts: meson-sm1: add Banana PI BPI-M5 board dts") Cc: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Anand Moon <linux.amoon@gmail.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lore.kernel.org/r/20210919202918.3556-4-linux.amoon@gmail.com 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.