drm/msm/dpu: split pipe handling from _dpu_crtc_blend_setup_mixer

Rework _dpu_crtc_blend_setup_mixer() to split away pipe handling to a
separate functon. This is a preparation for the r_pipe support.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Tested-by: Abhinav Kumar <quic_abhinavk@quicinc.com> # sc7280
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/527354/
Link: https://lore.kernel.org/r/20230316161653.4106395-27-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c

@@ -401,6 +401,46 @@ static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc)
 	}
 }
 
+static void _dpu_crtc_blend_setup_pipe(struct drm_crtc *crtc,
+				       struct drm_plane *plane,
+				       struct dpu_crtc_mixer *mixer,
+				       u32 num_mixers,
+				       enum dpu_stage stage,
+				       struct dpu_format *format,
+				       uint64_t modifier,
+				       struct dpu_sw_pipe *pipe,
+				       unsigned int stage_idx,
+				       struct dpu_hw_stage_cfg *stage_cfg
+				      )
+{
+	uint32_t lm_idx;
+	enum dpu_sspp sspp_idx;
+	struct drm_plane_state *state;
+
+	sspp_idx = pipe->sspp->idx;
+
+	state = plane->state;
+
+	trace_dpu_crtc_setup_mixer(DRMID(crtc), DRMID(plane),
+				   state, to_dpu_plane_state(state), stage_idx,
+				   format->base.pixel_format,
+				   modifier);
+
+	DRM_DEBUG_ATOMIC("crtc %d stage:%d - plane %d sspp %d fb %d\n",
+			 crtc->base.id,
+			 stage,
+			 plane->base.id,
+			 sspp_idx - SSPP_NONE,
+			 state->fb ? state->fb->base.id : -1);
+
+	stage_cfg->stage[stage][stage_idx] = sspp_idx;
+	stage_cfg->multirect_index[stage][stage_idx] = pipe->multirect_index;
+
+	/* blend config update */
+	for (lm_idx = 0; lm_idx < num_mixers; lm_idx++)
+		mixer[lm_idx].lm_ctl->ops.update_pending_flush_sspp(mixer[lm_idx].lm_ctl, sspp_idx);
+}
+
 static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
 	struct dpu_crtc *dpu_crtc, struct dpu_crtc_mixer *mixer,
 	struct dpu_hw_stage_cfg *stage_cfg)
@@ -413,15 +453,12 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
 	struct dpu_format *format;
 	struct dpu_hw_ctl *ctl = mixer->lm_ctl;
 
-	uint32_t stage_idx, lm_idx;
-	int zpos_cnt[DPU_STAGE_MAX + 1] = { 0 };
+	uint32_t lm_idx;
 	bool bg_alpha_enable = false;
 	DECLARE_BITMAP(fetch_active, SSPP_MAX);
 
 	memset(fetch_active, 0, sizeof(fetch_active));
 	drm_atomic_crtc_for_each_plane(plane, crtc) {
-		enum dpu_sspp sspp_idx;
-
 		state = plane->state;
 		if (!state)
 			continue;
@@ -432,39 +469,21 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
 		pstate = to_dpu_plane_state(state);
 		fb = state->fb;
 
-		sspp_idx = pstate->pipe.sspp->idx;
-		set_bit(sspp_idx, fetch_active);
-
-		DRM_DEBUG_ATOMIC("crtc %d stage:%d - plane %d sspp %d fb %d\n",
-				crtc->base.id,
-				pstate->stage,
-				plane->base.id,
-				sspp_idx - SSPP_VIG0,
-				state->fb ? state->fb->base.id : -1);
-
 		format = to_dpu_format(msm_framebuffer_format(pstate->base.fb));
 
 		if (pstate->stage == DPU_STAGE_BASE && format->alpha_enable)
 			bg_alpha_enable = true;
 
-		stage_idx = zpos_cnt[pstate->stage]++;
-		stage_cfg->stage[pstate->stage][stage_idx] =
-					sspp_idx;
-		stage_cfg->multirect_index[pstate->stage][stage_idx] =
-					pstate->pipe.multirect_index;
-
-		trace_dpu_crtc_setup_mixer(DRMID(crtc), DRMID(plane),
-					   state, pstate, stage_idx,
-					   format->base.pixel_format,
-					   fb ? fb->modifier : 0);
+		set_bit(pstate->pipe.sspp->idx, fetch_active);
+		_dpu_crtc_blend_setup_pipe(crtc, plane,
+					   mixer, cstate->num_mixers,
+					   pstate->stage,
+					   format, fb ? fb->modifier : 0,
+					   &pstate->pipe, 0, stage_cfg);
 
 		/* blend config update */
 		for (lm_idx = 0; lm_idx < cstate->num_mixers; lm_idx++) {
-			_dpu_crtc_setup_blend_cfg(mixer + lm_idx,
-						pstate, format);
-
-			mixer[lm_idx].lm_ctl->ops.update_pending_flush_sspp(mixer[lm_idx].lm_ctl,
-									    sspp_idx);
+			_dpu_crtc_setup_blend_cfg(mixer + lm_idx, pstate, format);
 
 			if (bg_alpha_enable && !format->alpha_enable)
 				mixer[lm_idx].mixer_op_mode = 0;
@@ -1322,6 +1341,8 @@ static int _dpu_debugfs_status_show(struct seq_file *s, void *data)
 		seq_printf(s, "\tdst x:%4d dst_y:%4d dst_w:%4d dst_h:%4d\n",
 			state->crtc_x, state->crtc_y, state->crtc_w,
 			state->crtc_h);
+		seq_printf(s, "\tsspp:%s\n",
+			   pstate->pipe.sspp->cap->name);
 		seq_printf(s, "\tmultirect: mode: %d index: %d\n",
 			pstate->pipe.multirect_mode, pstate->pipe.multirect_index);