drm/msm/dpu: assign intf to encoder in mode_set

Iterate and assign HW intf block to physical encoders
in encoder modeset. Moving all the HW block assignments
to encoder modeset to allow easy switching to state
based resource management.
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-7-git-send-email-jsanka@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

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

@@ -969,7 +969,7 @@ static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 	struct dpu_hw_ctl *hw_ctl[MAX_CHANNELS_PER_ENC] = { NULL };
 	struct dpu_hw_mixer *hw_lm[MAX_CHANNELS_PER_ENC] = { NULL };
 	int num_lm = 0, num_ctl = 0;
-	int i = 0, ret;
+	int i, j, ret;
 
 	if (!drm_enc) {
 		DPU_ERROR("invalid encoder\n");
@@ -1066,6 +1066,26 @@ static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 			phys->hw_pp = dpu_enc->hw_pp[i];
 			phys->hw_ctl = hw_ctl[i];
 
+			dpu_rm_init_hw_iter(&hw_iter, drm_enc->base.id,
+					    DPU_HW_BLK_INTF);
+			for (j = 0; j < MAX_CHANNELS_PER_ENC; j++) {
+				struct dpu_hw_intf *hw_intf;
+
+				if (!dpu_rm_get_hw(&dpu_kms->rm, &hw_iter))
+					break;
+
+				hw_intf = (struct dpu_hw_intf *)hw_iter.hw;
+				if (hw_intf->idx == phys->intf_idx)
+					phys->hw_intf = hw_intf;
+			}
+
+			if (!phys->hw_intf) {
+				DPU_ERROR_ENC(dpu_enc,
+					      "no intf block assigned at idx: %d\n",
+					      i);
+				goto error;
+			}
+
 			phys->connector = conn->state->connector;
 			if (phys->ops.mode_set)
 				phys->ops.mode_set(phys, mode, adj_mode);

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

@@ -449,35 +449,11 @@ static int dpu_encoder_phys_vid_control_vblank_irq(
 
 static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc)
 {
-	struct msm_drm_private *priv;
-	struct dpu_rm_hw_iter iter;
 	struct dpu_hw_ctl *ctl;
 	u32 flush_mask = 0;
 
-	if (!phys_enc || !phys_enc->parent || !phys_enc->parent->dev ||
-			!phys_enc->parent->dev->dev_private) {
-		DPU_ERROR("invalid encoder/device\n");
-		return;
-	}
-	priv = phys_enc->parent->dev->dev_private;
-
 	ctl = phys_enc->hw_ctl;
 
-	dpu_rm_init_hw_iter(&iter, phys_enc->parent->base.id, DPU_HW_BLK_INTF);
-	while (dpu_rm_get_hw(&phys_enc->dpu_kms->rm, &iter)) {
-		struct dpu_hw_intf *hw_intf = (struct dpu_hw_intf *)iter.hw;
-
-		if (hw_intf->idx == phys_enc->intf_idx) {
-			phys_enc->hw_intf = hw_intf;
-			break;
-		}
-	}
-
-	if (!phys_enc->hw_intf) {
-		DPU_ERROR("hw_intf not assigned\n");
-		return;
-	}
-
 	DPU_DEBUG_VIDENC(phys_enc, "\n");
 
 	if (WARN_ON(!phys_enc->hw_intf->ops.enable_timing))