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drm/i915/tgl: Add missing ddi clock select during DP init sequence

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Step 4.b was complete missed because it is only required to TC and TBT.

Bspec: 49190
Reviewed-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Clinton A Taylor <clinton.a.taylor@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190920205810.211048-2-jose.souza@intel.com
This commit is contained in:
Clinton A Taylor 2019-09-20 13:58:05 -07:00 committed by José Roberto de Souza
parent 0d7cf7bc15
commit 6171e58b1f
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/i915/display/intel_ddi.c
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@ -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)