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[ Upstream commit56bd931ae5] msm_atomic is doing vblank get/put's already, currently there no need to duplicate the effort in MDP4 Fix warning: ... WARNING: CPU: 3 PID: 79 at drivers/gpu/drm/drm_vblank.c:1194 drm_vblank_put+0x1cc/0x1d4 ... and multiple vblank time-outs: ... msm 5100000.mdp: vblank time out, crtc=1 ... Tested on Nexus 7 2013 (deb), LTS 5.10.50. Introduced by:119ecb7fd3("drm/msm/mdp4: request vblank during modeset") Signed-off-by: David Heidelberg <david@ixit.cz> Link: https://lore.kernel.org/r/20210715060925.7880-1-david@ixit.cz Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.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.