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ab198a7aab
As Daniel mentions in his email [1], non-blocking commits don't hold the
modeset locks, so we can safely access state as long as these functions
are in the commit path. So remove the WARN_ON in dpu_kms_encoder_enable.
In dpu_crtc_get_intf_mode, things are a bit more complicated. So keep
the WARN_ON, but add a comment explaining the situation and hope someone
comes along and fixes the issue.
[1]- https://lists.freedesktop.org/archives/dri-devel/2019-October/239441.html
Link to v1: https://patchwork.freedesktop.org/patch/msgid/20191010151351.126735-1-sean@poorly.run
Changes in v2:
- Restored the WARN_ON in get_intf_mode and added a clarifying comment (Daniel)
Fixes: 1dfdb0e107 ("drm/msm: dpu: Add modeset lock checks where applicable")
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Rob Clark <robdclark@chromium.org>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010181801.186069-1-sean@poorly.run
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.