scsi: ufs: Remove unused constants and code

Commit 5b44a07 ("scsi: ufs: Remove pre-defined initial voltage values
of device power") removed the code that uses the UFS_VREG_VCC* constants
and also the code that sets the min_uV and max_uV member variables. Hence
also remove these constants and that member variable.

Link: https://lore.kernel.org/r/20220419225811.4127248-13-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufs.h

@@ -562,15 +562,6 @@ struct ufs_query_res {
 	struct utp_upiu_query upiu_res;
 };
 
-#define UFS_VREG_VCC_MIN_UV	   2700000 /* uV */
-#define UFS_VREG_VCC_MAX_UV	   3600000 /* uV */
-#define UFS_VREG_VCC_1P8_MIN_UV    1700000 /* uV */
-#define UFS_VREG_VCC_1P8_MAX_UV    1950000 /* uV */
-#define UFS_VREG_VCCQ_MIN_UV	   1140000 /* uV */
-#define UFS_VREG_VCCQ_MAX_UV	   1260000 /* uV */
-#define UFS_VREG_VCCQ2_MIN_UV	   1700000 /* uV */
-#define UFS_VREG_VCCQ2_MAX_UV	   1950000 /* uV */
-
 /*
  * VCCQ & VCCQ2 current requirement when UFS device is in sleep state
  * and link is in Hibern8 state.
@@ -582,8 +573,6 @@ struct ufs_vreg {
 	const char *name;
 	bool always_on;
 	bool enabled;
-	int min_uV;
-	int max_uV;
 	int max_uA;
 };
 

drivers/scsi/ufs/ufshcd.c

@@ -8309,33 +8309,10 @@ static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
 static int ufshcd_config_vreg(struct device *dev,
 		struct ufs_vreg *vreg, bool on)
 {
-	int ret = 0;
-	struct regulator *reg;
-	const char *name;
-	int min_uV, uA_load;
-
-	BUG_ON(!vreg);
-
-	reg = vreg->reg;
-	name = vreg->name;
-
-	if (regulator_count_voltages(reg) > 0) {
-		uA_load = on ? vreg->max_uA : 0;
-		ret = ufshcd_config_vreg_load(dev, vreg, uA_load);
-		if (ret)
-			goto out;
+	if (regulator_count_voltages(vreg->reg) <= 0)
+		return 0;
 
-		if (vreg->min_uV && vreg->max_uV) {
-			min_uV = on ? vreg->min_uV : 0;
-			ret = regulator_set_voltage(reg, min_uV, vreg->max_uV);
-			if (ret)
-				dev_err(dev,
-					"%s: %s set voltage failed, err=%d\n",
-					__func__, name, ret);
-		}
-	}
-out:
-	return ret;
+	return ufshcd_config_vreg_load(dev, vreg, on ? vreg->max_uA : 0);
 }
 
 static int ufshcd_enable_vreg(struct device *dev, struct ufs_vreg *vreg)