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In order to fix the regession introduced by commitde04bb0089("drm/panel/panel-simple: Use the new allocation in place of devm_kzalloc()"), we need to move the panel_desc lookup into the common panel_simple_probe() function. There's two callers for that function, the probe implementations of the platform and MIPI-DSI drivers panel-simple implements. The MIPI-DSI driver's probe will need to access the current panel_desc to initialize properly, which won't be possible anymore if we make that lookup in panel_simple_probe(). However, we can make panel_simple_probe() return the initialized panel_simple structure it allocated, which will contain a pointer to the associated panel_desc in its desc field. This doesn't fixde04bb0089("drm/panel/panel-simple: Use the new allocation in place of devm_kzalloc()") still, but makes progress towards that goal. Fixes:de04bb0089("drm/panel/panel-simple: Use the new allocation in place of devm_kzalloc()") Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Francesco Dolcini <francesco.dolcini@toradex.com> # Toradex Colibri iMX6 Link: https://lore.kernel.org/r/20250626-drm-panel-simple-fixes-v2-3-5afcaa608bdc@kernel.org Signed-off-by: Maxime Ripard <mripard@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 reStructuredText 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.