scsi: ufs: Export regulator functions

Export below regulator functions to allow vendors to
customize regulator configuration in their own platforms.

int ufshcd_populate_vreg(struct device *dev, const char *name,
                         struct ufs_vreg **out_vreg);
int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg);

Link: https://lore.kernel.org/r/20220616053725.5681-10-stanley.chu@mediatek.comSigned-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/ufs/core/ufshcd.c

@@ -8415,7 +8415,7 @@ static int ufshcd_setup_hba_vreg(struct ufs_hba *hba, bool on)
 	return ufshcd_toggle_vreg(hba->dev, info->vdd_hba, on);
 }
 
-static int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg)
+int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg)
 {
 	int ret = 0;
 
@@ -8431,6 +8431,7 @@ static int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg)
 out:
 	return ret;
 }
+EXPORT_SYMBOL_GPL(ufshcd_get_vreg);
 
 static int ufshcd_init_vreg(struct ufs_hba *hba)
 {

drivers/ufs/host/ufshcd-pltfrm.c

@@ -109,8 +109,8 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 }
 
 #define MAX_PROP_SIZE 32
-static int ufshcd_populate_vreg(struct device *dev, const char *name,
-		struct ufs_vreg **out_vreg)
+int ufshcd_populate_vreg(struct device *dev, const char *name,
+			 struct ufs_vreg **out_vreg)
 {
 	char prop_name[MAX_PROP_SIZE];
 	struct ufs_vreg *vreg = NULL;
@@ -145,6 +145,7 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
 	*out_vreg = vreg;
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ufshcd_populate_vreg);
 
 /**
  * ufshcd_parse_regulator_info - get regulator info from device tree

drivers/ufs/host/ufshcd-pltfrm.h

@@ -32,5 +32,7 @@ void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param);
 int ufshcd_pltfrm_init(struct platform_device *pdev,
 		       const struct ufs_hba_variant_ops *vops);
 void ufshcd_pltfrm_shutdown(struct platform_device *pdev);
+int ufshcd_populate_vreg(struct device *dev, const char *name,
+			 struct ufs_vreg **out_vreg);
 
 #endif /* UFSHCD_PLTFRM_H_ */

include/ufs/ufshcd.h

@@ -1199,6 +1199,8 @@ void ufshcd_map_desc_id_to_length(struct ufs_hba *hba, enum desc_idn desc_id,
 
 u32 ufshcd_get_local_unipro_ver(struct ufs_hba *hba);
 
+int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg);
+
 int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd);
 
 int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,