drm/i915/display: Support Multiple Transcoders' PSR status on debugfs
In order to support the PSR state of each transcoder, it adds i915_psr_status to sub-directory of each transcoder. v2: Change using of Symbolic permissions 'S_IRUGO' to using of octal permissions '0444' v5: Addressed JJani Nikula's review comments - Remove checking of Gen12 for i915_psr_status. - Add check of HAS_PSR() - Remove meaningless check routine. Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Anshuman Gupta <anshuman.gupta@intel.com> Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210204134015.419036-2-gwan-gyeong.mun@intel.com
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