From: Clinton A Taylor <clinton.a.tay...@intel.com>
Step 4.b was complete missed because it is only required to TC and TBT.
Bspec: 49190
Reviewed-by: Imre Deak <imre.d...@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demar...@intel.com>
Signed-off-by: Clinton A Taylor <clinton.a.tay...@intel.com>
Signed-off-by: José Roberto de Souza <jose.so...@intel.com>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c
b/drivers/gpu/drm/i915/display/intel_ddi.c
index 0c0da9f6c2e8..dfd6b064cbc3 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3230,11 +3230,14 @@ static void tgl_ddi_pre_enable_dp(struct intel_encoder
*encoder,
intel_edp_panel_on(intel_dp);
/*
- * 1.b, 3. and 4. is done before tgl_ddi_pre_enable_dp() by:
+ * 1.b, 3. and 4.a is done before tgl_ddi_pre_enable_dp() by:
* haswell_crtc_enable()->intel_encoders_pre_pll_enable() and
* haswell_crtc_enable()->intel_enable_shared_dpll()
*/
+ /* 4.b */
+ intel_ddi_clk_select(encoder, crtc_state);
+
/* 5. */
if (!intel_phy_is_tc(dev_priv, phy) ||
dig_port->tc_mode != TC_PORT_TBT_ALT)
--
2.23.0
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