-
Jouni Högander authored
Currently we are using hardcoded 7 for io and fast wake lines. According to Bspec io and fast wake times are both 42us for DISPLAY_VER >= 12 and 50us and 32us for older platforms. Calculate line counts for these and configure them into PSR2_CTL accordingly Use 45 us for the fast wake calculation as 42 seems to be too tight based on testing. Bspec: 49274, 4289 Cc: Mika Kahola <mika.kahola@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Fixes: 64cf40a1 ("drm/i915/psr: Program default IO buffer Wake and Fast Wake") Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7725Signed-off-by:
Jouni Högander <jouni.hogander@intel.com> Reviewed-by:
Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230221085304.3382297-1-jouni.hogander@intel.com (cherry picked from commit cb42e8ed) Signed-off-by:
Jani Nikula <jani.nikula@intel.com>
71c60210