From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Wed, 26 Jun 2013 17:09:28 +0000 (+0530)
Subject: [SCSI] ufs: remove version check before IS reg clear
X-Git-Tag: firefly_0821_release~176^2~5775^2~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=261ea452037471b7cab6a3913d308acba54f7933;p=firefly-linux-kernel-4.4.55.git

[SCSI] ufs: remove version check before IS reg clear

There is no need to check the version to clear
the interrupt status. And the order is changed
prior to actual handling.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 1f1e08518555..2e0248302e8d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1324,11 +1324,8 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba)
 	intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
 
 	if (intr_status) {
+		ufshcd_writel(hba, intr_status, REG_INTERRUPT_STATUS);
 		ufshcd_sl_intr(hba, intr_status);
-
-		/* If UFSHCI 1.0 then clear interrupt status register */
-		if (hba->ufs_version == UFSHCI_VERSION_10)
-			ufshcd_writel(hba, intr_status, REG_INTERRUPT_STATUS);
 		retval = IRQ_HANDLED;
 	}
 	spin_unlock(hba->host->host_lock);