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Currently the .modeset_calc_cdclk() hooks check the final cdclk value against the max allowed. That's not really sufficient since the low level calc_cdclk() functions effectively clamp the minimum required cdclk to the max supported by the platform. Hence if the minimum required exceeds the platforms capabilities we'd keep going anyway using the max cdclk frequency. To fix that let's move the check earlier into intel_crtc_compute_min_cdclk() and we'll check the minimum required cdclk of the pipe against the maximum supported by the platform. Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170710193347.8734-2-ville.syrjala@linux.intel.com Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@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.