Quoting Shekhar Chauhan (2024-03-11 01:15:04-03:00) >The driver currently waits 1ms for idle patterns, >but for Xe2LPD and possibly future display IPs, >it requires a 1640us (rounded up to 2ms) timeout >whilst waiting for idle patterns for MST streams. > >To simplify the code, the timeout is uniformly >increased by 1ms across all platforms/display IPs. > >v1: Introduced the 2ms wait timeout. >v2: Segregated the wait timeout for platforms before & after LNL. >v3: Fixed 2 cosmetic changes. >v4: Revert to v2 design with commit message enhancements. >v5: Minor cosmetic changes to the commit message. > >BSpec: 68849 >Signed-off-by: Shekhar Chauhan <shekhar.chauhan@xxxxxxxxx> Reviewed-by: Gustavo Sousa <gustavo.sousa@xxxxxxxxx> >--- > drivers/gpu/drm/i915/display/intel_ddi.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > >diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c >index bea441590204..05ba3642d486 100644 >--- a/drivers/gpu/drm/i915/display/intel_ddi.c >+++ b/drivers/gpu/drm/i915/display/intel_ddi.c >@@ -3680,7 +3680,7 @@ static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp, > > if (intel_de_wait_for_set(dev_priv, > dp_tp_status_reg(encoder, crtc_state), >- DP_TP_STATUS_IDLE_DONE, 1)) >+ DP_TP_STATUS_IDLE_DONE, 2)) > drm_err(&dev_priv->drm, > "Timed out waiting for DP idle patterns\n"); > } >-- >2.34.1 >
