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By moving the check from psr_compute_config() to psr_init_dpcd(), we get to set the dev_priv->psr.sink_support flag only when the panel is capable of changing power state. An additional benefit is that the check will be performed only at init time instead of every atomic_check. This should change the psr_basic IGT failures on HSW to skips. v2: Return early when SET_POWER_CAPABLE bit is 0 (Jose) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106217 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106346 Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180511195145.3829-2-dhinakaran.pandiyan@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 Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
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.