linux-kernel - [PATCH] scsi: ufs: qcom: Fix ESI vector mask

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Message-Id: <20231214125532.55109-1-manivannan.sadhasivam@linaro.org>
Date:   Thu, 14 Dec 2023 18:25:32 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     andersson@...nel.org, konrad.dybcio@...aro.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com
Cc:     linux-arm-msm@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Andrew Halaney <ahalaney@...hat.com>
Subject: [PATCH] scsi: ufs: qcom: Fix ESI vector mask

While cleaning up the code to use ufshcd_rmwl() helper, the ESI vector mask
was changed incorrectly. Fix it and also define a proper macro for the
value together with FIELD_PREP().

Reported-by: Andrew Halaney <ahalaney@...hat.com>
Fixes: 0e9f4375db1c ("scsi: ufs: qcom: Use ufshcd_rmwl() where applicable")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 drivers/ufs/host/ufs-qcom.c | 4 +++-
 drivers/ufs/host/ufs-qcom.h | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index d5cca5d3a98f..9fd8d737edea 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1744,7 +1744,9 @@ static int ufs_qcom_config_esi(struct ufs_hba *hba)
 	} else {
 		if (host->hw_ver.major == 6 && host->hw_ver.minor == 0 &&
 		    host->hw_ver.step == 0)
-			ufshcd_rmwl(hba, ESI_VEC_MASK, 0x1f00, REG_UFS_CFG3);
+			ufshcd_rmwl(hba, ESI_VEC_MASK,
+				    FIELD_PREP(ESI_VEC_MASK, MAX_ESI_VEC - 1),
+				    REG_UFS_CFG3);
 		ufshcd_mcq_enable_esi(hba);
 	}
 
diff --git a/drivers/ufs/host/ufs-qcom.h b/drivers/ufs/host/ufs-qcom.h
index 9026fe243307..9dd9a391ebb7 100644
--- a/drivers/ufs/host/ufs-qcom.h
+++ b/drivers/ufs/host/ufs-qcom.h
@@ -15,6 +15,7 @@
 #define HBRN8_POLL_TOUT_MS      100
 #define DEFAULT_CLK_RATE_HZ     1000000
 #define MAX_SUPP_MAC		64
+#define MAX_ESI_VEC		32
 
 #define UFS_HW_VER_MAJOR_MASK	GENMASK(31, 28)
 #define UFS_HW_VER_MINOR_MASK	GENMASK(27, 16)

base-commit: ed340d13aa1db6773667ed4bf907738df203fbda
-- 
2.25.1