| Message ID | 20200618000124.29036-2-manasi.d.navare@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,1/2] drm/i915/dp: Helper for checking DDI_BUF_CTL Idle status | expand |
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,
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@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> --- drivers/gpu/drm/i915/display/intel_ddi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)