IO buffer wake time used for IO wake calculation is dependent on port clock on LunarLake and beyond. Take this into account in get_io_buffer_wake_time.
Bspec: 65450 v2: add own io_wake_time helper for LunarLake Signed-off-by: Jouni Högander <[email protected]> --- drivers/gpu/drm/i915/display/intel_psr.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 747761efa4be..e3daaf05d640 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1165,11 +1165,23 @@ static int tgl_io_buffer_wake_time(void) return 10; } +static int lnl_io_buffer_wake_time(int port_clock) +{ + if (port_clock > 270000) + return 10; + else if (port_clock > 162000) + return 11; + else + return 15; +} + static int io_buffer_wake_time(const struct intel_crtc_state *crtc_state) { struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev); - if (DISPLAY_VER(i915) >= 12) + if (DISPLAY_VER(i915) >= 20) + return lnl_io_buffer_wake_time(crtc_state->port_clock); + else if (DISPLAY_VER(i915) >= 12) return tgl_io_buffer_wake_time(); else return skl_io_buffer_wake_time(); -- 2.34.1
