drm/msm/dpu: use PINGPONG_NONE to unbind INTF from PP

Currently the driver passes the PINGPONG index to
dpu_hw_intf_ops::bind_pingpong_blk() callback and uses separate boolean
flag to tell whether INTF should be bound or unbound. Simplify this by
passing PINGPONG_NONE in case of unbinding and drop the flag completely.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/540968/
Link: https://lore.kernel.org/r/20230604031308.894274-1-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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

@@ -2090,8 +2090,8 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc)
 		for (i = 0; i < dpu_enc->num_phys_encs; i++) {
 			if (dpu_enc->phys_encs[i] && phys_enc->hw_intf->ops.bind_pingpong_blk)
 				phys_enc->hw_intf->ops.bind_pingpong_blk(
-						dpu_enc->phys_encs[i]->hw_intf, false,
-						dpu_enc->phys_encs[i]->hw_pp->idx);
+						dpu_enc->phys_encs[i]->hw_intf,
+						PINGPONG_NONE);
 
 			/* mark INTF flush as pending */
 			if (phys_enc->hw_ctl->ops.update_pending_flush_intf)

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

@@ -66,7 +66,6 @@ static void _dpu_encoder_phys_cmd_update_intf_cfg(
 	if (test_bit(DPU_CTL_ACTIVE_CFG, &ctl->caps->features) && phys_enc->hw_intf->ops.bind_pingpong_blk)
 		phys_enc->hw_intf->ops.bind_pingpong_blk(
 				phys_enc->hw_intf,
-				true,
 				phys_enc->hw_pp->idx);
 }
 
@@ -553,8 +552,7 @@ static void dpu_encoder_phys_cmd_disable(struct dpu_encoder_phys *phys_enc)
 	if (phys_enc->hw_intf->ops.bind_pingpong_blk) {
 		phys_enc->hw_intf->ops.bind_pingpong_blk(
 				phys_enc->hw_intf,
-				false,
-				phys_enc->hw_pp->idx);
+				PINGPONG_NONE);
 
 		ctl = phys_enc->hw_ctl;
 		ctl->ops.update_pending_flush_intf(ctl, phys_enc->hw_intf->idx);

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

@@ -287,7 +287,6 @@ static void dpu_encoder_phys_vid_setup_timing_engine(
 	if (phys_enc->hw_intf->ops.bind_pingpong_blk)
 		phys_enc->hw_intf->ops.bind_pingpong_blk(
 				phys_enc->hw_intf,
-				true,
 				phys_enc->hw_pp->idx);
 
 	if (phys_enc->hw_pp->merge_3d)

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

@@ -267,7 +267,6 @@ static void dpu_hw_intf_setup_prg_fetch(
 
 static void dpu_hw_intf_bind_pingpong_blk(
 		struct dpu_hw_intf *intf,
-		bool enable,
 		const enum dpu_pingpong pp)
 {
 	struct dpu_hw_blk_reg_map *c = &intf->hw;
@@ -276,7 +275,7 @@ static void dpu_hw_intf_bind_pingpong_blk(
 	mux_cfg = DPU_REG_READ(c, INTF_MUX);
 	mux_cfg &= ~0xf;
 
-	if (enable)
+	if (pp)
 		mux_cfg |= (pp - PINGPONG_0) & 0x7;
 	else
 		mux_cfg |= 0xf;

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h

@@ -88,7 +88,6 @@ struct dpu_hw_intf_ops {
 	u32 (*get_line_count)(struct dpu_hw_intf *intf);
 
 	void (*bind_pingpong_blk)(struct dpu_hw_intf *intf,
-			bool enable,
 			const enum dpu_pingpong pp);
 	void (*setup_misr)(struct dpu_hw_intf *intf, bool enable, u32 frame_count);
 	int (*collect_misr)(struct dpu_hw_intf *intf, u32 *misr_value);