drm/i915: Add HDCP capability info to i915_display_info.
To identify the HDCP capability of the display connected to CI systems, we need to add the hdcp capability probing in i915_display_info. This will also help to populate the HDCP capability of the CI systems to CI H/W logs maintained at https://intel-gfx-ci.01.org/hardware/. It will facilitate to determine the kms_content_protection behavior on a particular CI system. v2: Reused the intel_hdcp_info() in i915_hdcp_sink_capability_show(). [Ram] Shifted intel_hdcp_info() to the end of intel_dp_info. [Ram] v3: used seq_puts() instead of seq_pritnf(). [Ram] Cc: daniel.vetter@intel.com Cc: ramalingam.c@intel.com Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com> Reviewed-by: Ramalingam C <ramalingam.c@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190719055513.2089-1-anshuman.gupta@intel.com
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