scsi: ufs: qcom: Rename "hs_gear" to "phy_gear"

The "hs_gear" variable is used to cache the gear setting for the PHY that
will be used during ufs_qcom_power_up_sequence(). But it creates ambiguity
with the gear setting used by the ufshcd driver.

So let's rename it to "phy_gear" to make it explicit that this variable
caches the gear setting for the PHY.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20230908145329.154024-2-manivannan.sadhasivam@linaro.org
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Tested-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: Mani-Sadhasivam

drivers/ufs/host/ufs-qcom.c

@@ -459,7 +459,7 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
 		return ret;
 	}
 
-	phy_set_mode_ext(phy, PHY_MODE_UFS_HS_B, host->hs_gear);
+	phy_set_mode_ext(phy, PHY_MODE_UFS_HS_B, host->phy_gear);
 
 	/* power on phy - start serdes and phy's power and clocks */
 	ret = phy_power_on(phy);
@@ -924,12 +924,12 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
 		}
 
 		/*
-		 * Update hs_gear only when the gears are scaled to a higher value. This is because,
-		 * the PHY gear settings are backwards compatible and we only need to change the PHY
-		 * settings while scaling to higher gears.
+		 * Update phy_gear only when the gears are scaled to a higher value. This is
+		 * because, the PHY gear settings are backwards compatible and we only need to
+		 * change the PHY gear settings while scaling to higher gears.
 		 */
-		if (dev_req_params->gear_tx > host->hs_gear)
-			host->hs_gear = dev_req_params->gear_tx;
+		if (dev_req_params->gear_tx > host->phy_gear)
+			host->phy_gear = dev_req_params->gear_tx;
 
 		/* enable the device ref clock before changing to HS mode */
 		if (!ufshcd_is_hs_mode(&hba->pwr_info) &&
@@ -1296,7 +1296,7 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 	 * Power up the PHY using the minimum supported gear (UFS_HS_G2).
 	 * Switching to max gear will be performed during reinit if supported.
 	 */
-	host->hs_gear = UFS_HS_G2;
+	host->phy_gear = UFS_HS_G2;
 
 	return 0;
 

drivers/ufs/host/ufs-qcom.h

@@ -240,7 +240,7 @@ struct ufs_qcom_host {
 
 	struct gpio_desc *device_reset;
 
-	u32 hs_gear;
+	u32 phy_gear;
 
 	bool esi_enabled;
 };