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f069ede81e
This is the equivalent of commitf5b4811e87("arm64: dts: qcom: sc7180: Add trogdor eDP/touchscreen regulator off-on-time") and commit23ff866987("arm64: dts: qcom: sc7180: Start the trogdor eDP/touchscreen regulator on"), but for herobrine instead of trogdor. The motivations for herobrine are the same as for trogdor. NOTES: * Currently for herobrine all boards are eDP, not MIPI. If/when we have herobrine derivatives that are MIPI they we can evaluate whether the same off-on-delay makes sense for them. For trogdor we didn't add the delay to MIPI panels because the problem was found late and nobody had complained about it. For herobrine defaulting to assuming the same 500ms makes sense and if we find we need to optimize later we can. * Currently there are no oddball herobrine boards like homestar where the panel really likes to be power cycled. If we have an oddball board it will need to split the eDP and touchscreen rail anyway (like homestar did) and we'll have to delete the "regulator-boot-on" from that board. Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20230207163550.1.I5ff72b7746d5fca8f10ea61351bde4150ed1a7f8@changeid
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.