3 files changed, 15 insertions, 43 deletions

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 7780a7d7a3b1..8d986f2221a0 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2088,6 +2088,7 @@ static inline
 void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 {
 	struct ufshcd_lrb *lrbp = &hba->lrb[task_tag];
+	unsigned long flags;
 
 	lrbp->issue_time_stamp = ktime_get();
 	lrbp->compl_time_stamp = ktime_set(0, 0);
@@ -2096,19 +2097,10 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 	ufshcd_clk_scaling_start_busy(hba);
 	if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
 		ufshcd_start_monitor(hba, lrbp);
-	if (ufshcd_has_utrlcnr(hba)) {
-		set_bit(task_tag, &hba->outstanding_reqs);
-		ufshcd_writel(hba, 1 << task_tag,
-			      REG_UTP_TRANSFER_REQ_DOOR_BELL);
-	} else {
-		unsigned long flags;
-
-		spin_lock_irqsave(hba->host->host_lock, flags);
-		set_bit(task_tag, &hba->outstanding_reqs);
-		ufshcd_writel(hba, 1 << task_tag,
-			      REG_UTP_TRANSFER_REQ_DOOR_BELL);
-		spin_unlock_irqrestore(hba->host->host_lock, flags);
-	}
+	spin_lock_irqsave(hba->host->host_lock, flags);
+	set_bit(task_tag, &hba->outstanding_reqs);
+	ufshcd_writel(hba, 1 << task_tag, REG_UTP_TRANSFER_REQ_DOOR_BELL);
+	spin_unlock_irqrestore(hba->host->host_lock, flags);
 	/* Make sure that doorbell is committed immediately */
 	wmb();
 }
@@ -5270,17 +5262,17 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 }
 
 /**
- * ufshcd_trc_handler - handle transfer requests completion
+ * ufshcd_transfer_req_compl - handle SCSI and query command completion
  * @hba: per adapter instance
- * @use_utrlcnr: get completed requests from UTRLCNR
  *
  * Returns
  *  IRQ_HANDLED - If interrupt is valid
  *  IRQ_NONE    - If invalid interrupt
  */
-static irqreturn_t ufshcd_trc_handler(struct ufs_hba *hba, bool use_utrlcnr)
+static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba)
 {
-	unsigned long completed_reqs = 0;
+	unsigned long completed_reqs, flags;
+	u32 tr_doorbell;
 
 	/* Resetting interrupt aggregation counters first and reading the
 	 * DOOR_BELL afterward allows us to handle all the completed requests.
@@ -5293,24 +5285,10 @@ static irqreturn_t ufshcd_trc_handler(struct ufs_hba *hba, bool use_utrlcnr)
 	    !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR))
 		ufshcd_reset_intr_aggr(hba);
 
-	if (use_utrlcnr) {
-		u32 utrlcnr;
-
-		utrlcnr = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_LIST_COMPL);
-		if (utrlcnr) {
-			ufshcd_writel(hba, utrlcnr,
-				      REG_UTP_TRANSFER_REQ_LIST_COMPL);
-			completed_reqs = utrlcnr;
-		}
-	} else {
-		unsigned long flags;
-		u32 tr_doorbell;
-
-		spin_lock_irqsave(hba->host->host_lock, flags);
-		tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
-		completed_reqs = tr_doorbell ^ hba->outstanding_reqs;
-		spin_unlock_irqrestore(hba->host->host_lock, flags);
-	}
+	spin_lock_irqsave(hba->host->host_lock, flags);
+	tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
+	completed_reqs = tr_doorbell ^ hba->outstanding_reqs;
+	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
 	if (completed_reqs) {
 		__ufshcd_transfer_req_compl(hba, completed_reqs);
@@ -5792,7 +5770,7 @@ out:
 /* Complete requests that have door-bell cleared */
 static void ufshcd_complete_requests(struct ufs_hba *hba)
 {
-	ufshcd_trc_handler(hba, false);
+	ufshcd_transfer_req_compl(hba);
 	ufshcd_tmc_handler(hba);
 }
 
@@ -6433,7 +6411,7 @@ static irqreturn_t ufshcd_sl_intr(struct ufs_hba *hba, u32 intr_status)
 		retval |= ufshcd_tmc_handler(hba);
 
 	if (intr_status & UTP_TRANSFER_REQ_COMPL)
-		retval |= ufshcd_trc_handler(hba, ufshcd_has_utrlcnr(hba));
+		retval |= ufshcd_transfer_req_compl(hba);
 
 	return retval;
 }
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 334b49cb00b3..56f48dd34020 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1208,11 +1208,6 @@ static inline u32 ufshcd_vops_get_ufs_hci_version(struct ufs_hba *hba)
 	return ufshcd_readl(hba, REG_UFS_VERSION);
 }
 
-static inline bool ufshcd_has_utrlcnr(struct ufs_hba *hba)
-{
-	return (hba->ufs_version >= ufshci_version(3, 0));
-}
-
 static inline int ufshcd_vops_clk_scale_notify(struct ufs_hba *hba,
 			bool up, enum ufs_notify_change_status status)
 {
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 5affb1fce5ad..de95be5d11d4 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -39,7 +39,6 @@ enum {
 	REG_UTP_TRANSFER_REQ_DOOR_BELL		= 0x58,
 	REG_UTP_TRANSFER_REQ_LIST_CLEAR		= 0x5C,
 	REG_UTP_TRANSFER_REQ_LIST_RUN_STOP	= 0x60,
-	REG_UTP_TRANSFER_REQ_LIST_COMPL		= 0x64,
 	REG_UTP_TASK_REQ_LIST_BASE_L		= 0x70,
 	REG_UTP_TASK_REQ_LIST_BASE_H		= 0x74,
 	REG_UTP_TASK_REQ_DOOR_BELL		= 0x78,