Ander Conselvan de Oliveira
9b5fed0daa
The sequence in glk_dsi_device_ready() enters ULPS then waits until it is *not* active to then disable it. The correct sequence according to the spec is to enter ULPS then wait until the GLK_ULPS_NOT_ACTIVE bit is zero, i.e., ULPS is active, and then disable ULPS. Fixing the condition gets rid of the following spurious error messages: [drm:glk_dsi_device_ready [i915]] *ERROR* ULPS is still active Fixes:4644848369("drm/i915/glk: Add MIPIIO Enable/disable sequence") Cc: Deepak M <m.deepak@intel.com> Cc: Madhav Chauhan <madhav.chauhan@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Cc: <drm-intel-fixes@lists.freedesktop.org> Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Reviewed-by: Madhav Chauhan <madhav.chauhan@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170428080222.6147-1-ander.conselvan.de.oliveira@intel.com (cherry picked from commit3acbec03b3) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.