[PATCH v2 3/4] drm/msm/dpu: use PINGPONG_NONE for LMs with no PP attached

[Dmitry Baryshkov]

On msm8998/sdm845 some LM blocks do not have corresponding PINGPONG
block. Currently the driver uses PINGPONG_MAX for such cases. Switch
that to use PINGPONG_NONE instead, which is more logical.

Reviewed-by: Marijn Suijten <marijn.suijten at somainline.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h | 4 ++--
 drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_4_0_sdm845.h  | 4 ++--
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h          | 2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h             | 3 ++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c                  | 2 +-
 5 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
index 37a52b4ef8d3..3c732a0360c7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h
@@ -104,9 +104,9 @@ static const struct dpu_lm_cfg msm8998_lm[] = {
 	LM_BLK("lm_2", LM_2, 0x46000, MIXER_MSM8998_MASK,
 		&msm8998_lm_sblk, PINGPONG_2, LM_5, 0),
 	LM_BLK("lm_3", LM_3, 0x47000, MIXER_MSM8998_MASK,
-		&msm8998_lm_sblk, PINGPONG_MAX, 0, 0),
+		&msm8998_lm_sblk, PINGPONG_NONE, 0, 0),
 	LM_BLK("lm_4", LM_4, 0x48000, MIXER_MSM8998_MASK,
-		&msm8998_lm_sblk, PINGPONG_MAX, 0, 0),
+		&msm8998_lm_sblk, PINGPONG_NONE, 0, 0),
 	LM_BLK("lm_5", LM_5, 0x49000, MIXER_MSM8998_MASK,
 		&msm8998_lm_sblk, PINGPONG_3, LM_2, 0),
 };
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_4_0_sdm845.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_4_0_sdm845.h
index 0b727252671c..36ea1af10894 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_4_0_sdm845.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_4_0_sdm845.h
@@ -102,9 +102,9 @@ static const struct dpu_lm_cfg sdm845_lm[] = {
 	LM_BLK("lm_2", LM_2, 0x46000, MIXER_SDM845_MASK,
 		&sdm845_lm_sblk, PINGPONG_2, LM_5, 0),
 	LM_BLK("lm_3", LM_3, 0x0, MIXER_SDM845_MASK,
-		&sdm845_lm_sblk, PINGPONG_MAX, 0, 0),
+		&sdm845_lm_sblk, PINGPONG_NONE, 0, 0),
 	LM_BLK("lm_4", LM_4, 0x0, MIXER_SDM845_MASK,
-		&sdm845_lm_sblk, PINGPONG_MAX, 0, 0),
+		&sdm845_lm_sblk, PINGPONG_NONE, 0, 0),
 	LM_BLK("lm_5", LM_5, 0x49000, MIXER_SDM845_MASK,
 		&sdm845_lm_sblk, PINGPONG_3, LM_2, 0),
 };
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 1cb5699a5a47..677048cc3b7d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -529,7 +529,7 @@ struct dpu_sspp_cfg {
  * @base               register offset of this block
  * @features           bit mask identifying sub-blocks/features
  * @sblk:              LM Sub-blocks information
- * @pingpong:          ID of connected PingPong, PINGPONG_MAX if unsupported
+ * @pingpong:          ID of connected PingPong, PINGPONG_NONE if unsupported
  * @lm_pair_mask:      Bitmask of LMs that can be controlled by same CTL
  */
 struct dpu_lm_cfg {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
index 1913a19de733..02a0f48aac94 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
@@ -191,7 +191,8 @@ enum dpu_dsc {
 };
 
 enum dpu_pingpong {
-	PINGPONG_0 = 1,
+	PINGPONG_NONE,
+	PINGPONG_0,
 	PINGPONG_1,
 	PINGPONG_2,
 	PINGPONG_3,
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index d5a06628885e..bf7b8e7c45b1 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -117,7 +117,7 @@ int dpu_rm_init(struct dpu_rm *rm,
 		struct dpu_hw_mixer *hw;
 		const struct dpu_lm_cfg *lm = &cat->mixer[i];
 
-		if (lm->pingpong == PINGPONG_MAX) {
+		if (lm->pingpong == PINGPONG_NONE) {
 			DPU_DEBUG("skip mixer %d without pingpong\n", lm->id);
 			continue;
 		}
-- 
2.39.2