Manasi Navare 0385ecead5 drm/i915: HW state readout for Bigjoiner case
Skip iterating over bigjoiner slaves, only the master has the state we
care about.

Add the width of the bigjoiner slave to the reconstructed fb.

Hide the bigjoiner slave to userspace, and double the mode on bigjoiner
master.

And last, disable bigjoiner slave from primary if reconstruction fails.

v3:
* Fix the ddi_get_config slave error (Ankit Nautiyal)
v2:
* Unsupported bigjoiner config for initial fb (Ville)

Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
[vsyrjala:
* Don't do any hw->uapi state copy for bigjoiner slave
* We still have hw.mode so no need to pass it in
* Appease checkpatch]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201117194718.11462-7-manasi.d.navare@intel.com
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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.
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