drm/msm/dpu: move dpu_encoder_helper_phys_setup_cdm to dpu_encoder

Move dpu_encoder_helper_phys_setup_cdm to dpu_encoder in preparation for
implementing YUV420 over DP, which requires CDM compatibility.

Changes in v2:
	- Slightly change the wording of the commit text to make clear
	  that YUV over DP requires CDM

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579611/
Link: https://lore.kernel.org/r/20240222194025.25329-6-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

3 files changed, 87 insertions, 83 deletions

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 194dbb08331d..c55178b5f5ee 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2133,6 +2133,84 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc)
 	ctl->ops.clear_pending_flush(ctl);
 }
 
+void dpu_encoder_helper_phys_setup_cdm(struct dpu_encoder_phys *phys_enc,
+				       const struct dpu_format *dpu_fmt,
+				       u32 output_type)
+{
+	struct dpu_hw_cdm *hw_cdm;
+	struct dpu_hw_cdm_cfg *cdm_cfg;
+	struct dpu_hw_pingpong *hw_pp;
+	int ret;
+
+	if (!phys_enc)
+		return;
+
+	cdm_cfg = &phys_enc->cdm_cfg;
+	hw_pp = phys_enc->hw_pp;
+	hw_cdm = phys_enc->hw_cdm;
+
+	if (!hw_cdm)
+		return;
+
+	if (!DPU_FORMAT_IS_YUV(dpu_fmt)) {
+		DPU_DEBUG("[enc:%d] cdm_disable fmt:%x\n", DRMID(phys_enc->parent),
+			  dpu_fmt->base.pixel_format);
+		if (hw_cdm->ops.bind_pingpong_blk)
+			hw_cdm->ops.bind_pingpong_blk(hw_cdm, PINGPONG_NONE);
+
+		return;
+	}
+
+	memset(cdm_cfg, 0, sizeof(struct dpu_hw_cdm_cfg));
+
+	cdm_cfg->output_width = phys_enc->cached_mode.hdisplay;
+	cdm_cfg->output_height = phys_enc->cached_mode.vdisplay;
+	cdm_cfg->output_fmt = dpu_fmt;
+	cdm_cfg->output_type = output_type;
+	cdm_cfg->output_bit_depth = DPU_FORMAT_IS_DX(dpu_fmt) ?
+			CDM_CDWN_OUTPUT_10BIT : CDM_CDWN_OUTPUT_8BIT;
+	cdm_cfg->csc_cfg = &dpu_csc10_rgb2yuv_601l;
+
+	/* enable 10 bit logic */
+	switch (cdm_cfg->output_fmt->chroma_sample) {
+	case DPU_CHROMA_RGB:
+		cdm_cfg->h_cdwn_type = CDM_CDWN_DISABLE;
+		cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
+		break;
+	case DPU_CHROMA_H2V1:
+		cdm_cfg->h_cdwn_type = CDM_CDWN_COSITE;
+		cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
+		break;
+	case DPU_CHROMA_420:
+		cdm_cfg->h_cdwn_type = CDM_CDWN_COSITE;
+		cdm_cfg->v_cdwn_type = CDM_CDWN_OFFSITE;
+		break;
+	case DPU_CHROMA_H1V2:
+	default:
+		DPU_ERROR("[enc:%d] unsupported chroma sampling type\n",
+			  DRMID(phys_enc->parent));
+		cdm_cfg->h_cdwn_type = CDM_CDWN_DISABLE;
+		cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
+		break;
+	}
+
+	DPU_DEBUG("[enc:%d] cdm_enable:%d,%d,%X,%d,%d,%d,%d]\n",
+		  DRMID(phys_enc->parent), cdm_cfg->output_width,
+		  cdm_cfg->output_height, cdm_cfg->output_fmt->base.pixel_format,
+		  cdm_cfg->output_type, cdm_cfg->output_bit_depth,
+		  cdm_cfg->h_cdwn_type, cdm_cfg->v_cdwn_type);
+
+	if (hw_cdm->ops.enable) {
+		cdm_cfg->pp_id = hw_pp->idx;
+		ret = hw_cdm->ops.enable(hw_cdm, cdm_cfg);
+		if (ret < 0) {
+			DPU_ERROR("[enc:%d] failed to enable CDM; ret:%d\n",
+				  DRMID(phys_enc->parent), ret);
+			return;
+		}
+	}
+}
+
 #ifdef CONFIG_DEBUG_FS
 static int _dpu_encoder_status_show(struct seq_file *s, void *data)
 {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
index b6c005d932eb..cb10869790aa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
@@ -375,6 +375,15 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
 void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc);
 
 /**
+ * dpu_encoder_helper_phys_setup_cdm - setup chroma down sampling block
+ * @phys_enc: Pointer to physical encoder
+ * @output_type: HDMI/WB
+ */
+void dpu_encoder_helper_phys_setup_cdm(struct dpu_encoder_phys *phys_enc,
+				       const struct dpu_format *dpu_fmt,
+				       u32 output_type);
+
+/**
  * dpu_encoder_vblank_callback - Notify virtual encoder of vblank IRQ reception
  * @drm_enc:    Pointer to drm encoder structure
  * @phys_enc:	Pointer to physical encoder
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
index 208b7c84e802..1924a2b28e53 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c
@@ -265,89 +265,6 @@ static void dpu_encoder_phys_wb_setup_ctl(struct dpu_encoder_phys *phys_enc)
 }
 
 /**
- * dpu_encoder_helper_phys_setup_cdm - setup chroma down sampling block
- *                                     This API does not handle DPU_CHROMA_H1V2.
- * @phys_enc:Pointer to physical encoder
- */
-static void dpu_encoder_helper_phys_setup_cdm(struct dpu_encoder_phys *phys_enc,
-					      const struct dpu_format *dpu_fmt,
-					      u32 output_type)
-{
-	struct dpu_hw_cdm *hw_cdm;
-	struct dpu_hw_cdm_cfg *cdm_cfg;
-	struct dpu_hw_pingpong *hw_pp;
-	int ret;
-
-	if (!phys_enc)
-		return;
-
-	cdm_cfg = &phys_enc->cdm_cfg;
-	hw_pp = phys_enc->hw_pp;
-	hw_cdm = phys_enc->hw_cdm;
-
-	if (!hw_cdm)
-		return;
-
-	if (!DPU_FORMAT_IS_YUV(dpu_fmt)) {
-		DPU_DEBUG("[enc:%d] cdm_disable fmt:%x\n", DRMID(phys_enc->parent),
-			  dpu_fmt->base.pixel_format);
-		if (hw_cdm->ops.bind_pingpong_blk)
-			hw_cdm->ops.bind_pingpong_blk(hw_cdm, PINGPONG_NONE);
-
-		return;
-	}
-
-	memset(cdm_cfg, 0, sizeof(struct dpu_hw_cdm_cfg));
-
-	cdm_cfg->output_width = phys_enc->cached_mode.hdisplay;
-	cdm_cfg->output_height = phys_enc->cached_mode.vdisplay;
-	cdm_cfg->output_fmt = dpu_fmt;
-	cdm_cfg->output_type = output_type;
-	cdm_cfg->output_bit_depth = DPU_FORMAT_IS_DX(dpu_fmt) ?
-			CDM_CDWN_OUTPUT_10BIT : CDM_CDWN_OUTPUT_8BIT;
-	cdm_cfg->csc_cfg = &dpu_csc10_rgb2yuv_601l;
-
-	/* enable 10 bit logic */
-	switch (cdm_cfg->output_fmt->chroma_sample) {
-	case DPU_CHROMA_RGB:
-		cdm_cfg->h_cdwn_type = CDM_CDWN_DISABLE;
-		cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
-		break;
-	case DPU_CHROMA_H2V1:
-		cdm_cfg->h_cdwn_type = CDM_CDWN_COSITE;
-		cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
-		break;
-	case DPU_CHROMA_420:
-		cdm_cfg->h_cdwn_type = CDM_CDWN_COSITE;
-		cdm_cfg->v_cdwn_type = CDM_CDWN_OFFSITE;
-		break;
-	case DPU_CHROMA_H1V2:
-	default:
-		DPU_ERROR("[enc:%d] unsupported chroma sampling type\n",
-			  DRMID(phys_enc->parent));
-		cdm_cfg->h_cdwn_type = CDM_CDWN_DISABLE;
-		cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
-		break;
-	}
-
-	DPU_DEBUG("[enc:%d] cdm_enable:%d,%d,%X,%d,%d,%d,%d]\n",
-		  DRMID(phys_enc->parent), cdm_cfg->output_width,
-		  cdm_cfg->output_height, cdm_cfg->output_fmt->base.pixel_format,
-		  cdm_cfg->output_type, cdm_cfg->output_bit_depth,
-		  cdm_cfg->h_cdwn_type, cdm_cfg->v_cdwn_type);
-
-	if (hw_cdm->ops.enable) {
-		cdm_cfg->pp_id = hw_pp->idx;
-		ret = hw_cdm->ops.enable(hw_cdm, cdm_cfg);
-		if (ret < 0) {
-			DPU_ERROR("[enc:%d] failed to enable CDM; ret:%d\n",
-				  DRMID(phys_enc->parent), ret);
-			return;
-		}
-	}
-}
-
-/**
  * _dpu_encoder_phys_wb_update_flush - flush hardware update
  * @phys_enc:	Pointer to physical encoder
  */