drm/msm/dpu: pass irq to dpu_encoder_helper_wait_for_irq()

Pass IRQ number directly rather than passing an index in the dpu_encoder's irq table.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/474703/
Link: https://lore.kernel.org/r/20220217043148.480898-7-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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

@@ -277,38 +277,35 @@ static int dpu_encoder_helper_wait_event_timeout(int32_t drm_id,
 		u32 irq_idx, struct dpu_encoder_wait_info *info);
 
 int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
-		enum dpu_intr_idx intr_idx,
+		int irq,
 		void (*func)(void *arg, int irq_idx),
 		struct dpu_encoder_wait_info *wait_info)
 {
-	int irq;
 	u32 irq_status;
 	int ret;
 
-	if (!wait_info || intr_idx >= INTR_IDX_MAX) {
+	if (!wait_info) {
 		DPU_ERROR("invalid params\n");
 		return -EINVAL;
 	}
-	irq = phys_enc->irq[intr_idx];
-
 	/* note: do master / slave checking outside */
 
 	/* return EWOULDBLOCK since we know the wait isn't necessary */
 	if (phys_enc->enable_state == DPU_ENC_DISABLED) {
-		DRM_ERROR("encoder is disabled id=%u, intr=%d, irq=%d\n",
-			  DRMID(phys_enc->parent), intr_idx,
+		DRM_ERROR("encoder is disabled id=%u, callback=%ps, irq=%d\n",
+			  DRMID(phys_enc->parent), func,
 			  irq);
 		return -EWOULDBLOCK;
 	}
 
 	if (irq < 0) {
-		DRM_DEBUG_KMS("skip irq wait id=%u, intr=%d\n",
-			      DRMID(phys_enc->parent), intr_idx);
+		DRM_DEBUG_KMS("skip irq wait id=%u, callback=%ps\n",
+			      DRMID(phys_enc->parent), func);
 		return 0;
 	}
 
-	DRM_DEBUG_KMS("id=%u, intr=%d, irq=%d, pp=%d, pending_cnt=%d\n",
-		      DRMID(phys_enc->parent), intr_idx,
+	DRM_DEBUG_KMS("id=%u, callback=%ps, irq=%d, pp=%d, pending_cnt=%d\n",
+		      DRMID(phys_enc->parent), func,
 		      irq, phys_enc->hw_pp->idx - PINGPONG_0,
 		      atomic_read(wait_info->atomic_cnt));
 
@@ -322,8 +319,8 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
 		if (irq_status) {
 			unsigned long flags;
 
-			DRM_DEBUG_KMS("irq not triggered id=%u, intr=%d, irq=%d, pp=%d, atomic_cnt=%d\n",
-				      DRMID(phys_enc->parent), intr_idx,
+			DRM_DEBUG_KMS("irq not triggered id=%u, callback=%ps, irq=%d, pp=%d, atomic_cnt=%d\n",
+				      DRMID(phys_enc->parent), func,
 				      irq,
 				      phys_enc->hw_pp->idx - PINGPONG_0,
 				      atomic_read(wait_info->atomic_cnt));
@@ -333,16 +330,16 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
 			ret = 0;
 		} else {
 			ret = -ETIMEDOUT;
-			DRM_DEBUG_KMS("irq timeout id=%u, intr=%d, irq=%d, pp=%d, atomic_cnt=%d\n",
-				      DRMID(phys_enc->parent), intr_idx,
+			DRM_DEBUG_KMS("irq timeout id=%u, callback=%ps, irq=%d, pp=%d, atomic_cnt=%d\n",
+				      DRMID(phys_enc->parent), func,
 				      irq,
 				      phys_enc->hw_pp->idx - PINGPONG_0,
 				      atomic_read(wait_info->atomic_cnt));
 		}
 	} else {
 		ret = 0;
 		trace_dpu_enc_irq_wait_success(DRMID(phys_enc->parent),
-			intr_idx, irq,
+			func, irq,
 			phys_enc->hw_pp->idx - PINGPONG_0,
 			atomic_read(wait_info->atomic_cnt));
 	}

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

@@ -340,13 +340,13 @@ void dpu_encoder_helper_report_irq_timeout(struct dpu_encoder_phys *phys_enc,
  * dpu_encoder_helper_wait_for_irq - utility to wait on an irq.
  *	note: will call dpu_encoder_helper_wait_for_irq on timeout
  * @phys_enc: Pointer to physical encoder structure
- * @intr_idx: encoder interrupt index
+ * @irq: IRQ index
  * @func: IRQ callback to be called in case of timeout
  * @wait_info: wait info struct
  * @Return: 0 or -ERROR
  */
 int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
-		enum dpu_intr_idx intr_idx,
+		int irq,
 		void (*func)(void *arg, int irq_idx),
 		struct dpu_encoder_wait_info *wait_info);
 

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

@@ -214,7 +214,8 @@ static int _dpu_encoder_phys_cmd_wait_for_idle(
 	wait_info.atomic_cnt = &phys_enc->pending_kickoff_cnt;
 	wait_info.timeout_ms = KICKOFF_TIMEOUT_MS;
 
-	ret = dpu_encoder_helper_wait_for_irq(phys_enc, INTR_IDX_PINGPONG,
+	ret = dpu_encoder_helper_wait_for_irq(phys_enc,
+			phys_enc->irq[INTR_IDX_PINGPONG],
 			dpu_encoder_phys_cmd_pp_tx_done_irq,
 			&wait_info);
 	if (ret == -ETIMEDOUT)
@@ -632,7 +633,8 @@ static int _dpu_encoder_phys_cmd_wait_for_ctl_start(
 	wait_info.atomic_cnt = &phys_enc->pending_ctlstart_cnt;
 	wait_info.timeout_ms = KICKOFF_TIMEOUT_MS;
 
-	ret = dpu_encoder_helper_wait_for_irq(phys_enc, INTR_IDX_CTL_START,
+	ret = dpu_encoder_helper_wait_for_irq(phys_enc,
+			phys_enc->irq[INTR_IDX_CTL_START],
 			dpu_encoder_phys_cmd_ctl_start_irq,
 			&wait_info);
 	if (ret == -ETIMEDOUT) {
@@ -691,7 +693,8 @@ static int dpu_encoder_phys_cmd_wait_for_vblank(
 
 	atomic_inc(&cmd_enc->pending_vblank_cnt);
 
-	rc = dpu_encoder_helper_wait_for_irq(phys_enc, INTR_IDX_RDPTR,
+	rc = dpu_encoder_helper_wait_for_irq(phys_enc,
+			phys_enc->irq[INTR_IDX_RDPTR],
 			dpu_encoder_phys_cmd_pp_rd_ptr_irq,
 			&wait_info);
 

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

@@ -474,7 +474,8 @@ static int dpu_encoder_phys_vid_wait_for_vblank(
 	}
 
 	/* Wait for kickoff to complete */
-	ret = dpu_encoder_helper_wait_for_irq(phys_enc, INTR_IDX_VSYNC,
+	ret = dpu_encoder_helper_wait_for_irq(phys_enc,
+			phys_enc->irq[INTR_IDX_VSYNC],
 			dpu_encoder_phys_vid_vblank_irq,
 			&wait_info);
 

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

@@ -188,25 +188,25 @@ DEFINE_EVENT(dpu_irq_template, dpu_irq_unregister_success,
 );
 
 TRACE_EVENT(dpu_enc_irq_wait_success,
-	TP_PROTO(uint32_t drm_id, enum dpu_intr_idx intr_idx,
+	TP_PROTO(uint32_t drm_id, void *func,
 		 int irq_idx, enum dpu_pingpong pp_idx, int atomic_cnt),
-	TP_ARGS(drm_id, intr_idx, irq_idx, pp_idx, atomic_cnt),
+	TP_ARGS(drm_id, func, irq_idx, pp_idx, atomic_cnt),
 	TP_STRUCT__entry(
 		__field(	uint32_t,		drm_id		)
-		__field(	enum dpu_intr_idx,	intr_idx	)
+		__field(	void *,			func		)
 		__field(	int,			irq_idx		)
 		__field(	enum dpu_pingpong,	pp_idx		)
 		__field(	int,			atomic_cnt	)
 	),
 	TP_fast_assign(
 		__entry->drm_id = drm_id;
-		__entry->intr_idx = intr_idx;
+		__entry->func = func;
 		__entry->irq_idx = irq_idx;
 		__entry->pp_idx = pp_idx;
 		__entry->atomic_cnt = atomic_cnt;
 	),
-	TP_printk("id=%u, intr=%d, irq=%d, pp=%d, atomic_cnt=%d",
-		  __entry->drm_id, __entry->intr_idx,
+	TP_printk("id=%u, callback=%ps, irq=%d, pp=%d, atomic_cnt=%d",
+		  __entry->drm_id, __entry->func,
 		  __entry->irq_idx, __entry->pp_idx, __entry->atomic_cnt)
 );