drm/msm/dpu: remove always-true argument of dpu_core_irq_read()

The argument clear of the function dpu_core_irq_read() is always true.
Remove it.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/474697/
Link: https://lore.kernel.org/r/20220217043148.480898-3-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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

@@ -33,13 +33,11 @@ irqreturn_t dpu_core_irq(struct msm_kms *kms);
  * dpu_core_irq_read - IRQ helper function for reading IRQ status
  * @dpu_kms:		DPU handle
  * @irq_idx:		irq index
- * @clear:		True to clear the irq after read
  * @return:		non-zero if irq detected; otherwise no irq detected
  */
 u32 dpu_core_irq_read(
 		struct dpu_kms *dpu_kms,
-		int irq_idx,
-		bool clear);
+		int irq_idx);
 
 /**
  * dpu_core_irq_register_callback - For registering callback function on IRQ

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

@@ -318,8 +318,7 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
 			wait_info);
 
 	if (ret <= 0) {
-		irq_status = dpu_core_irq_read(phys_enc->dpu_kms,
-				irq->irq_idx, true);
+		irq_status = dpu_core_irq_read(phys_enc->dpu_kms, irq->irq_idx);
 		if (irq_status) {
 			unsigned long flags;
 

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

@@ -363,7 +363,7 @@ static void dpu_disable_all_irqs(struct dpu_kms *dpu_kms)
 	wmb();
 }
 
-u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx, bool clear)
+u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx)
 {
 	struct dpu_hw_intr *intr = dpu_kms->hw_intr;
 	int reg_idx;
@@ -390,7 +390,7 @@ u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx, bool clear)
 	intr_status = DPU_REG_READ(&intr->hw,
 			dpu_intr_set[reg_idx].status_off) &
 		DPU_IRQ_MASK(irq_idx);
-	if (intr_status && clear)
+	if (intr_status)
 		DPU_REG_WRITE(&intr->hw, dpu_intr_set[reg_idx].clr_off,
 				intr_status);