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DRM may support multiple in-kernel clients that run as soon as a DRM driver has been registered. To select the client(s) in a single place, introduce drm_client_setup(). Drivers that call the new helper automatically instantiate the kernel's configured default clients. Only fbdev emulation is currently supported. Later versions can add support for DRM-based logging, a boot logo or even a console. Some drivers handle the color mode for clients internally. Provide the helper drm_client_setup_with_color_mode() for them. Using the new interface requires the driver to select DRM_CLIENT_SELECTION in its Kconfig. For now this only enables the client-setup helpers if the fbdev client has been configured by the user. A future patchset will further modularize client support and rework DRM_CLIENT_SELECTION to select the correct dependencies for all its clients. v5: - add CONFIG_DRM_CLIENT_SELECTION und DRM_CLIENT_SETUP v4: - fix docs for drm_client_setup_with_fourcc() (Geert) v3: - fix build error v2: - add drm_client_setup_with_fourcc() (Laurent) - push default-format handling into actual clients Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-5-tzimmermann@suse.de
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.