Ville Syrjälä f0d4ce59f4 drm/i915: Disable DRRS on IVB/HSW port != A ... Currently we allow DRRS on IVB PCH ports, but we're missing a few programming steps meaning it is guaranteed to not work. And on HSW DRRS is not supported on anything but port A ever as only transcoder EDP has the M2/N2 registers (though I'm not sure if HSW ever has eDP on any other port). Starting from BDW all transcoders have the dynamically reprogrammable M/N registers so DRRS could work on any port. Stop initializing DRRS on ports where it cannot possibly work. Cc: stable@vger.kernel.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220128103757.22461-11-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>		2022-02-01 11:33:23 +02:00
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drm	drm/i915: Disable DRRS on IVB/HSW port != A	2022-02-01 11:33:23 +02:00
host1x	gpu: host1x: Add back arm_iommu_detach_device()	2021-12-16 14:28:51 +01:00
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