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54846c2ea7
Unify on using poll_timeout_us() throughout instead of mixing with readx_poll_timeout(). While the latter can be ever so slightly simpler, they are both complicated enough that it's better to unify on one approach only. While at it, better separate the handling of error returns from drm_dp_dpcd_readb() and the actual status byte. This is best achieved by inlining the read_fec_detected_status() function, and switching to drm_dp_dpcd_read_byte(). v2: Use drm_dp_dpcd_read_byte() (Imre) Cc: Imre Deak <imre.deak@intel.com> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Link: https://lore.kernel.org/r/63b10a36c7ab545c640b24bc8fc007ce2ea74623.1756383233.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>