[PATCH 05/38][SRU][G/H] drm/i915: Fix ibx max vswing/preemph
You-Sheng Yang
vicamo.yang at canonical.com
Tue Nov 24 10:42:40 UTC 2020
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
BugLink: https://bugs.launchpad.net/bugs/1903969
IBX supports vswing level 3 and pre-emphasis level 3. Don't
limit it to level 2 for those.
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200512174145.3186-3-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza at intel.com>
(cherry picked from commit da882e6bb968b04195c32072376c4206f64037ef)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index b9ab951b6c28..00a63c6bc332 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -3995,7 +3995,7 @@ intel_dp_voltage_max(struct intel_dp *intel_dp)
if (HAS_DDI(dev_priv))
return intel_ddi_dp_voltage_max(encoder);
else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv) ||
- (HAS_PCH_CPT(dev_priv) && port != PORT_A))
+ (HAS_PCH_SPLIT(dev_priv) && port != PORT_A))
return DP_TRAIN_VOLTAGE_SWING_LEVEL_3;
else if (IS_IVYBRIDGE(dev_priv) && port == PORT_A)
return DP_TRAIN_VOLTAGE_SWING_LEVEL_2;
@@ -4013,7 +4013,7 @@ intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, u8 voltage_swing)
if (HAS_DDI(dev_priv)) {
return intel_ddi_dp_pre_emphasis_max(encoder, voltage_swing);
} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv) ||
- (HAS_PCH_CPT(dev_priv) && port != PORT_A)) {
+ (HAS_PCH_SPLIT(dev_priv) && port != PORT_A)) {
switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
case DP_TRAIN_VOLTAGE_SWING_LEVEL_0:
return DP_TRAIN_PRE_EMPH_LEVEL_3;
--
2.29.2
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