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Allocate and register a drm_panel so that drm_panel_followers can find the panel. Pass the drm_connector::kdev device to drm_panel allocation for matching. That's only available after drm_sysfs_connector_add(), so we need to postpone the drm_panel allocation until .late_register() hook. The drm_panel framework is moving towards devm_drm_panel_alloc(). It requires a wrapper struct, and struct intel_panel would be the natural candidate. However, we can't postpone its allocation until .late_register(), so we have to use __devm_drm_panel_alloc() directly for now. Call the drm_panel_prepare() and drm_panel_unprepare() functions for ICL+ DSI, so that followers get notified of the panel power state changes. This can later be expanded to VLV+ DSI and eDP. Cc: Maxime Ripard <mripard@kernel.org> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Lee Shawn C <shawn.c.lee@intel.com> Tested-by: Lee Shawn C <shawn.c.lee@intel.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/13d15c1414e65ffb21944d66e2820befdab54e98.1749199013.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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.