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fda520976e
Since commit93e81e38e1("drm/fb_helper: Minimize damage-helper overhead") the drm_fb_helper_funcs::fb_dirty helper is required for proper dirty/damage processing. The drm/msm driver requires that to function to let CMD panels to work. Use simplified version of drm_fbdev_generic_helper_fb_dirty() to fix support for CMD mode panels. Reported-by: Degdag Mohamed <degdagmohamed@gmail.com> Fixes:93e81e38e1("drm/fb_helper: Minimize damage-helper overhead") Cc: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org> Patchwork: https://patchwork.freedesktop.org/patch/542002/ Link: https://lore.kernel.org/r/20230612031616.3620134-1-dmitry.baryshkov@linaro.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.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.