[07/11] drm/i915: Get the iboost setting based on the port type

Message ID 20180511062101.27495-8-tjaalton@ubuntu.com
State New
Headers show
Series
  • i915_bpo: Fix flickering issue after panel change
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Commit Message

Timo Aaltonen May 11, 2018, 6:20 a.m.
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

BugLink: http://bugs.launchpad.net/bugs/1770565

Program the 'iboost_bit' based on what the VBT says it should be for
the specific port type, rather than assume it's always the same
for DP and HDMI.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1468328376-6380-8-git-send-email-ville.syrjala@linux.intel.com
(cherry picked from commit 1edaaa2f25c04ba9b40caf4d80fe3d302d9e76cd)
Signed-off-by: Timo Aaltonen <timo.aaltonen@canonical.com>
---
 ubuntu/i915/intel_ddi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

Patch

diff --git a/ubuntu/i915/intel_ddi.c b/ubuntu/i915/intel_ddi.c
index 7d8833277e5a..42018000f39d 100644
--- a/ubuntu/i915/intel_ddi.c
+++ b/ubuntu/i915/intel_ddi.c
@@ -446,8 +446,7 @@  void intel_prepare_dp_ddi_buffers(struct intel_encoder *encoder)
 				skl_get_buf_trans_edp(dev_priv, &n_edp_entries);
 
 		/* If we're boosting the current, set bit 31 of trans1 */
-		if (dev_priv->vbt.ddi_port_info[port].hdmi_boost_level ||
-		    dev_priv->vbt.ddi_port_info[port].dp_boost_level)
+		if (dev_priv->vbt.ddi_port_info[port].dp_boost_level)
 			iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE;
 
 		if (WARN_ON(encoder->type == INTEL_OUTPUT_EDP &&
@@ -524,9 +523,9 @@  static void intel_prepare_hdmi_ddi_buffers(struct intel_encoder *encoder)
 
 	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
 		ddi_translations_hdmi = skl_get_buf_trans_hdmi(dev_priv, &n_hdmi_entries);
+
 		/* If we're boosting the current, set bit 31 of trans1 */
-		if (dev_priv->vbt.ddi_port_info[port].hdmi_boost_level ||
-		    dev_priv->vbt.ddi_port_info[port].dp_boost_level)
+		if (dev_priv->vbt.ddi_port_info[port].hdmi_boost_level)
 			iboost_bit = DDI_BUF_BALANCE_LEG_ENABLE;
 	} else if (IS_BROADWELL(dev_priv)) {
 		ddi_translations_hdmi = bdw_ddi_translations_hdmi;