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| author | Jouni Högander <jouni.hogander@intel.com> | 2023-02-21 09:53:04 +0100 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2023-03-13 10:38:05 +0100 |
| commit | 71c602103c74b277bef3d20a308874a33ec8326d (patch) | |
| tree | f1997392088b1b8c0096371e9241a4ca4645cee3 /drivers/gpu/drm/drm_atomic.c | |
| parent | drm/i915: Fix audio ELD handling for DP MST (diff) | |
| download | linux-71c602103c74b277bef3d20a308874a33ec8326d.tar.xz linux-71c602103c74b277bef3d20a308874a33ec8326d.zip | |
drm/i915/psr: Use calculated io and fast wake lines
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: 64cf40a125ff ("drm/i915/psr: Program default IO buffer Wake and Fast Wake")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7725
Signed-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 cb42e8ede5b475c096e473b86c356b1158b4bc3b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
0 files changed, 0 insertions, 0 deletions