mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-05 10:31:46 +09:00
ae0e16521a
[ Upstream commit f1a54e860b1bc8d824925b5a77f510913880e8d6 ] The commit0f5251339e("drm/vc4: hdmi: Make sure the controller is powered in detect") introduced the necessary power management handling to avoid register access while controller is powered down. Unfortunately it just print a warning if pm_runtime_resume_and_get() fails and proceed anyway. This could happen during suspend to idle. So we must assume it is unsafe to access the HDMI register. So bail out properly. Fixes:0f5251339e("drm/vc4: hdmi: Make sure the controller is powered in detect") Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Maíra Canal <mcanal@igalia.com> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Maíra Canal <mcanal@igalia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240821214052.6800-3-wahrenst@gmx.net 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.