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drm/i915/intel_cdclk: Add vdsc with bigjoiner constraints on min_cdlck
As per Bsepc:49259, Bigjoiner BW check puts restriction on the compressed bpp for a given CDCLK, pixelclock in cases where Bigjoiner + DSC are used. Currently compressed bpp is computed first, and it is ensured that the bpp will work at least with the max CDCLK freq. Since the CDCLK is computed later, lets account for Bigjoiner BW check while calculating Min CDCLK. v2: Use pixel clock in the bw calculations. (Ville) v3: Use helper to account for FEC overhead. (Stan) Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230817142459.89764-7-ankit.k.nautiyal@intel.com
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Ankit Nautiyal
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Aug 18, 2023
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