drm/i915/dp: No need to poll FEC Enable Live bit

The Bspec does not mention polling the FEC Enable
Live status bit. That is only there for debug purposes.
So remove the polling from driver.

Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201125072634.27664-1-manasi.d.navare@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 5193473c838c2a5984a511ef7bc34d1db6e84bd6..6863236df1d0de54f38e521a7ad8c1a3efe131de 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3512,12 +3512,6 @@ static void intel_ddi_enable_fec(struct intel_encoder *encoder,
        val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
        val |= DP_TP_CTL_FEC_ENABLE;
        intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
-
-       if (intel_de_wait_for_set(dev_priv,
-                                 dp_tp_status_reg(encoder, crtc_state),
-                                 DP_TP_STATUS_FEC_ENABLE_LIVE, 1))
-               drm_err(&dev_priv->drm,
-                       "Timed out waiting for FEC Enable Status\n");
 }
 
 static void intel_ddi_disable_fec_state(struct intel_encoder *encoder,