From: Ville Syrjälä <ville.syrj...@linux.intel.com>
The documented programming sequence indicates the correct point
for the vswing programming is just before we enable the DDI.
Make it so.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 30 ++++++++++++------------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c
b/drivers/gpu/drm/i915/display/intel_ddi.c
index 8fbeb8c24efb..efcdf5499903 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3893,7 +3893,6 @@ static void intel_ddi_pre_enable_hdmi(struct
intel_atomic_state *state,
struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
struct intel_hdmi *intel_hdmi = &dig_port->hdmi;
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
- int level = intel_ddi_hdmi_level(encoder, crtc_state);
intel_dp_dual_mode_set_tmds_output(intel_hdmi, true);
intel_ddi_clk_select(encoder, crtc_state);
@@ -3904,20 +3903,6 @@ static void intel_ddi_pre_enable_hdmi(struct
intel_atomic_state *state,
icl_program_mg_dp_mode(dig_port, crtc_state);
- if (INTEL_GEN(dev_priv) >= 12)
- tgl_ddi_vswing_sequence(encoder, crtc_state, level);
- else if (INTEL_GEN(dev_priv) == 11)
- icl_ddi_vswing_sequence(encoder, crtc_state, level);
- else if (IS_CANNONLAKE(dev_priv))
- cnl_ddi_vswing_sequence(encoder, crtc_state, level);
- else if (IS_GEN9_LP(dev_priv))
- bxt_ddi_vswing_sequence(encoder, crtc_state, level);
- else
- intel_prepare_hdmi_ddi_buffers(encoder, level);
-
- if (IS_GEN9_BC(dev_priv))
- skl_ddi_set_iboost(encoder, crtc_state, level);
-
intel_ddi_enable_pipe_clock(encoder, crtc_state);
dig_port->set_infoframes(encoder,
@@ -4293,6 +4278,7 @@ static void intel_enable_ddi_hdmi(struct
intel_atomic_state *state,
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
struct drm_connector *connector = conn_state->connector;
+ int level = intel_ddi_hdmi_level(encoder, crtc_state);
enum port port = encoder->port;
if (!intel_hdmi_handle_sink_scrambling(encoder, connector,
@@ -4302,6 +4288,20 @@ static void intel_enable_ddi_hdmi(struct
intel_atomic_state *state,
"[CONNECTOR:%d:%s] Failed to configure sink
scrambling/TMDS bit clock ratio\n",
connector->base.id, connector->name);
+ if (INTEL_GEN(dev_priv) >= 12)
+ tgl_ddi_vswing_sequence(encoder, crtc_state, level);
+ else if (INTEL_GEN(dev_priv) == 11)
+ icl_ddi_vswing_sequence(encoder, crtc_state, level);
+ else if (IS_CANNONLAKE(dev_priv))
+ cnl_ddi_vswing_sequence(encoder, crtc_state, level);
+ else if (IS_GEN9_LP(dev_priv))
+ bxt_ddi_vswing_sequence(encoder, crtc_state, level);
+ else
+ intel_prepare_hdmi_ddi_buffers(encoder, level);
+
+ if (IS_GEN9_BC(dev_priv))
+ skl_ddi_set_iboost(encoder, crtc_state, level);
+
/* Display WA #1143: skl,kbl,cfl */
if (IS_GEN9_BC(dev_priv)) {
/*
--
2.26.2
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