Based on the platform, Bspec expects us to wait or poll with timeout for DDI BUF IDLE bit to be set to 0 (non idle) afetr enabling DDI_BUF_CTL. Use the existing wait_for_buf_idle() to do this. v2: * Based on platform, fixed delay or poll (Ville) * Use a helper to do this (Imre, Ville) Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Imre Deak <imre.deak@xxxxxxxxx> Signed-off-by: Manasi Navare <manasi.d.navare@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 e4738c3b6d44..788c2be8fa73 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -4031,7 +4031,7 @@ static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp) intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP); intel_de_posting_read(dev_priv, DDI_BUF_CTL(port)); - udelay(600); + intel_wait_ddi_buf_idle(dev_priv, port, false); } static void intel_ddi_set_link_train(struct intel_dp *intel_dp, -- 2.19.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
