linux-kernel - [PATCH v2 14/15] scsi: ufs: core: Add enums for UFS lanes

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Message-Id: <20230720054100.9940-15-manivannan.sadhasivam@linaro.org>
Date:   Thu, 20 Jul 2023 11:10:59 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     vireshk@...nel.org, nm@...com, sboyd@...nel.org,
        myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        cw00.choi@...sung.com, andersson@...nel.org,
        konrad.dybcio@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        jejb@...ux.ibm.com, martin.petersen@...cle.com
Cc:     alim.akhtar@...sung.com, avri.altman@....com, bvanassche@....org,
        linux-scsi@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        quic_asutoshd@...cinc.com, quic_cang@...cinc.com,
        quic_nitirawa@...cinc.com, quic_narepall@...cinc.com,
        quic_bhaskarv@...cinc.com, quic_richardp@...cinc.com,
        quic_nguyenb@...cinc.com, quic_ziqichen@...cinc.com,
        bmasney@...hat.com, krzysztof.kozlowski@...aro.org,
        linux-kernel@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH v2 14/15] scsi: ufs: core: Add enums for UFS lanes

Since there are enums available for UFS gears, let's add enums for lanes
as well to maintain uniformity.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 drivers/ufs/core/ufshcd.c        | 4 ++--
 drivers/ufs/host/ufshcd-pltfrm.c | 4 ++--
 include/ufs/unipro.h             | 6 ++++++
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 6207afac729d..4496a23eaa83 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -4447,8 +4447,8 @@ static void ufshcd_init_pwr_info(struct ufs_hba *hba)
 {
 	hba->pwr_info.gear_rx = UFS_PWM_G1;
 	hba->pwr_info.gear_tx = UFS_PWM_G1;
-	hba->pwr_info.lane_rx = 1;
-	hba->pwr_info.lane_tx = 1;
+	hba->pwr_info.lane_rx = UFS_LANE_1;
+	hba->pwr_info.lane_tx = UFS_LANE_1;
 	hba->pwr_info.pwr_rx = SLOWAUTO_MODE;
 	hba->pwr_info.pwr_tx = SLOWAUTO_MODE;
 	hba->pwr_info.hs_rate = 0;
diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c
index 068c22378c88..8d20cbb552aa 100644
--- a/drivers/ufs/host/ufshcd-pltfrm.c
+++ b/drivers/ufs/host/ufshcd-pltfrm.c
@@ -415,8 +415,8 @@ EXPORT_SYMBOL_GPL(ufshcd_get_pwr_dev_param);
 void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param)
 {
 	*dev_param = (struct ufs_dev_params){
-		.tx_lanes = 2,
-		.rx_lanes = 2,
+		.tx_lanes = UFS_LANE_2,
+		.rx_lanes = UFS_LANE_2,
 		.hs_rx_gear = UFS_HS_G3,
 		.hs_tx_gear = UFS_HS_G3,
 		.pwm_rx_gear = UFS_PWM_G4,
diff --git a/include/ufs/unipro.h b/include/ufs/unipro.h
index dc9dd1d23f0f..256eb3a43f54 100644
--- a/include/ufs/unipro.h
+++ b/include/ufs/unipro.h
@@ -230,6 +230,12 @@ enum ufs_hs_gear_tag {
 	UFS_HS_G5		/* HS Gear 5 */
 };
 
+enum ufs_lanes {
+	UFS_LANE_DONT_CHANGE,	/* Don't change Lane */
+	UFS_LANE_1,		/* Lane 1 (default for reset) */
+	UFS_LANE_2,		/* Lane 2 */
+};
+
 enum ufs_unipro_ver {
 	UFS_UNIPRO_VER_RESERVED = 0,
 	UFS_UNIPRO_VER_1_40 = 1, /* UniPro version 1.40 */
-- 
2.25.1