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94c1adc4c1
It turns out the encoder retrieval code, in addition to being unnecessarily complicated, has a bug when only the planes and crtcs are affected by a given atomic commit. Indeed, in such a case, either drm_atomic_get_old_connector_state or drm_atomic_get_new_connector_state will return NULL and thus our encoder retrieval code will not match on anything. We can however simplify the code by using drm_for_each_encoder_mask, the drm_crtc_state storing the encoders a given CRTC is connected to directly and without relying on any other state. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://lore.kernel.org/r/20211025152903.1088803-6-maxime@cerno.tech |
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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.