diff options
| author | Jouni Högander <[email protected]> | 2023-02-21 10:53:04 +0200 |
|---|---|---|
| committer | Jouni Högander <[email protected]> | 2023-02-24 12:38:46 +0200 |
| commit | cb42e8ede5b475c096e473b86c356b1158b4bc3b (patch) | |
| tree | 721dfd9dd043585b9adc97feeff0fec6e1144657 /drivers/usb/cdns3/cdns3-debug.h | |
| parent | 82ea22256b9c1fe3f5a089733969f6539d92d9f0 (diff) | |
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 <[email protected]>
Cc: José Roberto de Souza <[email protected]>
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 <[email protected]>
Reviewed-by: Stanislav Lisovskiy <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/usb/cdns3/cdns3-debug.h')
0 files changed, 0 insertions, 0 deletions