Equation for sending start/end SDP prior to the SU region start/end has changed. Update used formula. Bspec: 49274 Cc: Mika Kahola <mika.kahola@xxxxxxxxx> Cc: José Roberto de Souza <jose.souza@xxxxxxxxx> Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_psr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 079b7d3d0c53..6f03bf16d6f4 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -805,8 +805,8 @@ static bool _compute_psr2_sdp_prior_scanline_indication(struct intel_dp *intel_d hblank_total = adjusted_mode->crtc_hblank_end - adjusted_mode->crtc_hblank_start; hblank_ns = div_u64(1000000ULL * hblank_total, adjusted_mode->crtc_clock); - /* From spec: (72 / number of lanes) * 1000 / symbol clock frequency MHz */ - req_ns = (72 / crtc_state->lane_count) * 1000 / (crtc_state->port_clock / 1000); + /* From spec: ((60 / number of lanes) + 11) * 1000 / symbol clock frequency MHz */ + req_ns = ((60 / crtc_state->lane_count) + 11) * 1000 / (crtc_state->port_clock / 1000); if ((hblank_ns - req_ns) > 100) return true; -- 2.34.1
