drm/i915: Move dsc/joiner enable into hsw_crtc_enable()

Lift the dsc/joiner enable up from the wonky places where it
currently sits (ddi .pre_enable() or icl_ddi_bigjoiner_pre_enable())
into hsw_crtc_enable() where we write the other per-pipe stuff
as well. Makes the transcoder vs. pipe split less confusing.

For DSI this results in slight reordering between the dsc/joiner
enable vs. transcoder timings setup, but I can't really think
why that should cause any issues since the transcoder isn't yet
enabled at that point.

v2: Take care of dsi (Jani)

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220125063937.7003-1-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/display/icl_dsi.c

@@ -1233,8 +1233,6 @@ static void gen11_dsi_pre_enable(struct intel_atomic_state *state,
 
 	intel_dsc_dsi_pps_write(encoder, pipe_config);
 
-	intel_dsc_enable(pipe_config);
-
 	/* step6c: configure transcoder timings */
 	gen11_dsi_set_transcoder_timings(encoder, pipe_config);
 }

drivers/gpu/drm/i915/display/intel_ddi.c

@@ -2425,9 +2425,6 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	intel_ddi_enable_fec(encoder, crtc_state);
 
 	intel_dsc_dp_pps_write(encoder, crtc_state);
-
-	if (!crtc_state->bigjoiner)
-		intel_dsc_enable(crtc_state);
 }
 
 static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
@@ -2493,9 +2490,6 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
 		intel_ddi_enable_pipe_clock(encoder, crtc_state);
 
 	intel_dsc_dp_pps_write(encoder, crtc_state);
-
-	if (!crtc_state->bigjoiner)
-		intel_dsc_enable(crtc_state);
 }
 
 static void intel_ddi_pre_enable_dp(struct intel_atomic_state *state,

drivers/gpu/drm/i915/display/intel_display.c

@@ -1973,7 +1973,6 @@ static void hsw_set_frame_start_delay(const struct intel_crtc_state *crtc_state)
 static void icl_ddi_bigjoiner_pre_enable(struct intel_atomic_state *state,
 					 const struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
 	struct intel_crtc_state *master_crtc_state;
 	struct intel_crtc *master_crtc;
 	struct drm_connector_state *conn_state;
@@ -2003,12 +2002,6 @@ static void icl_ddi_bigjoiner_pre_enable(struct intel_atomic_state *state,
 
 	if (crtc_state->bigjoiner_slave)
 		intel_encoders_pre_enable(state, master_crtc);
-
-	/* need to enable VDSC, which we skipped in pre-enable */
-	intel_dsc_enable(crtc_state);
-
-	if (DISPLAY_VER(dev_priv) >= 13)
-		intel_uncompressed_joiner_enable(crtc_state);
 }
 
 static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_state)
@@ -2056,6 +2049,11 @@ static void hsw_crtc_enable(struct intel_atomic_state *state,
 		icl_ddi_bigjoiner_pre_enable(state, new_crtc_state);
 	}
 
+	intel_dsc_enable(new_crtc_state);
+
+	if (DISPLAY_VER(dev_priv) >= 13)
+		intel_uncompressed_joiner_enable(new_crtc_state);
+
 	intel_set_pipe_src_size(new_crtc_state);
 	if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
 		bdw_set_pipemisc(new_crtc_state);