[PATCH v2 2/2] drm/msm/dpu: use PINGPONG_NONE to unbind WB from PP

[Dmitry Baryshkov]

Currently the driver passes the PINGPONG index to
dpu_hw_wb_ops::bind_pingpong_blk() callback and uses separate boolean
flag to tell whether WB should be bound or unbound. Simplify this by
passing PINGPONG_NONE in case of unbinding and drop the flag completely.

Suggested-by: Marijn Suijten <marijn.suijten at somainline.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c         | 3 +--
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c | 2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c           | 4 ++--
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.h           | 2 +-
 4 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 3e543d664c98..493905a5b63a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2080,8 +2080,7 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc)
 	if (phys_enc->hw_wb) {
 		/* disable the PP block */
 		if (phys_enc->hw_wb->ops.bind_pingpong_blk)
-			phys_enc->hw_wb->ops.bind_pingpong_blk(phys_enc->hw_wb, false,
-					phys_enc->hw_pp->idx);
+			phys_enc->hw_wb->ops.bind_pingpong_blk(phys_enc->hw_wb, PINGPONG_NONE);
 
 		/* mark WB flush as pending */
 		if (phys_enc->hw_ctl->ops.update_pending_flush_wb)
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 e9325cafb1a8..a466ff70a4d6 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
@@ -210,7 +210,7 @@ static void dpu_encoder_phys_wb_setup_cdp(struct dpu_encoder_phys *phys_enc)
 
 		/* setup which pp blk will connect to this wb */
 		if (hw_pp && phys_enc->hw_wb->ops.bind_pingpong_blk)
-			phys_enc->hw_wb->ops.bind_pingpong_blk(phys_enc->hw_wb, true,
+			phys_enc->hw_wb->ops.bind_pingpong_blk(phys_enc->hw_wb,
 					phys_enc->hw_pp->idx);
 
 		phys_enc->hw_ctl->ops.setup_intf_cfg(phys_enc->hw_ctl, &intf_cfg);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c
index dcffd6cc47fc..ebc416400382 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.c
@@ -154,7 +154,7 @@ static void dpu_hw_wb_setup_cdp(struct dpu_hw_wb *ctx,
 
 static void dpu_hw_wb_bind_pingpong_blk(
 		struct dpu_hw_wb *ctx,
-		bool enable, const enum dpu_pingpong pp)
+		const enum dpu_pingpong pp)
 {
 	struct dpu_hw_blk_reg_map *c;
 	int mux_cfg;
@@ -167,7 +167,7 @@ static void dpu_hw_wb_bind_pingpong_blk(
 	mux_cfg = DPU_REG_READ(c, WB_MUX);
 	mux_cfg &= ~0xf;
 
-	if (enable)
+	if (pp)
 		mux_cfg |= (pp - PINGPONG_0) & 0x7;
 	else
 		mux_cfg |= 0xf;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.h
index c7f792eeb55c..2d7db2efa3d0 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_wb.h
@@ -49,7 +49,7 @@ struct dpu_hw_wb_ops {
 			  bool enable);
 
 	void (*bind_pingpong_blk)(struct dpu_hw_wb *ctx,
-			bool enable, const enum dpu_pingpong pp);
+				  const enum dpu_pingpong pp);
 };
 
 /**
-- 
2.39.2