[Intel-gfx] [PATCH v3 19/25] drm/i915/dp_mst: Program the DSC PPS SDP for each stream

[Imre Deak]

Atm the DSC PPS SDP is programmed only if the first stream is compressed
and then it's programmed only for the first stream. This left all other
compressed streams blank. Program the SDP for all streams.

Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c    | 12 +++++++-----
 drivers/gpu/drm/i915/display/intel_dp_mst.c |  2 ++
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 45db6349af94f..962c9c7c211ce 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -2505,7 +2505,8 @@ static void mtl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	/* 6.o Configure and enable FEC if needed */
 	intel_ddi_enable_fec(encoder, crtc_state);
 
-	intel_dsc_dp_pps_write(encoder, crtc_state);
+	if (!is_mst)
+		intel_dsc_dp_pps_write(encoder, crtc_state);
 }
 
 static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
@@ -2643,7 +2644,8 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	/* 7.l Configure and enable FEC if needed */
 	intel_ddi_enable_fec(encoder, crtc_state);
 
-	intel_dsc_dp_pps_write(encoder, crtc_state);
+	if (!is_mst)
+		intel_dsc_dp_pps_write(encoder, crtc_state);
 }
 
 static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
@@ -2705,10 +2707,10 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
 
 	intel_ddi_enable_fec(encoder, crtc_state);
 
-	if (!is_mst)
+	if (!is_mst) {
 		intel_ddi_enable_transcoder_clock(encoder, crtc_state);
-
-	intel_dsc_dp_pps_write(encoder, crtc_state);
+		intel_dsc_dp_pps_write(encoder, crtc_state);
+	}
 }
 
 static void intel_ddi_pre_enable_dp(struct intel_atomic_state *state,
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 832e8b0e87e84..19548242fa0f2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -43,6 +43,7 @@
 #include "intel_dpio_phy.h"
 #include "intel_hdcp.h"
 #include "intel_hotplug.h"
+#include "intel_vdsc.h"
 #include "skl_scaler.h"
 
 static int intel_dp_mst_check_constraints(struct drm_i915_private *i915, int bpp,
@@ -775,6 +776,7 @@ static void intel_mst_pre_enable_dp(struct intel_atomic_state *state,
 	if (DISPLAY_VER(dev_priv) < 12 || !first_mst_stream)
 		intel_ddi_enable_transcoder_clock(encoder, pipe_config);
 
+	intel_dsc_dp_pps_write(&dig_port->base, pipe_config);
 	intel_ddi_set_dp_msa(pipe_config, conn_state);
 }
 
-- 
2.37.2