scsi: ufs: export some functions for vendor usage

Export below functions for vendor usage:

int ufshcd_hba_enable(struct ufs_hba *hba);
int ufshcd_make_hba_operational(struct ufs_hba *hba);
int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);

Link: https://lore.kernel.org/r/20200117035108.19699-3-stanley.chu@mediatek.comReviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufshcd.c

@@ -250,7 +250,6 @@ static int ufshcd_probe_hba(struct ufs_hba *hba);
 static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
 				 bool skip_ref_clk);
 static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);
-static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
 static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
 static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba);
 static int ufshcd_host_reset_and_restore(struct ufs_hba *hba);
@@ -3865,7 +3864,7 @@ static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
 	return ret;
 }
 
-static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
+int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
 {
 	struct uic_command uic_cmd = {0};
 	int ret;
@@ -3891,6 +3890,7 @@ static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_exit);
 
 void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit)
 {
@@ -4162,7 +4162,7 @@ static int ufshcd_complete_dev_init(struct ufs_hba *hba)
  *
  * Returns 0 on success, non-zero value on failure
  */
-static int ufshcd_make_hba_operational(struct ufs_hba *hba)
+int ufshcd_make_hba_operational(struct ufs_hba *hba)
 {
 	int err = 0;
 	u32 reg;
@@ -4208,6 +4208,7 @@ static int ufshcd_make_hba_operational(struct ufs_hba *hba)
 out:
 	return err;
 }
+EXPORT_SYMBOL_GPL(ufshcd_make_hba_operational);
 
 /**
  * ufshcd_hba_stop - Send controller to reset state
@@ -4285,7 +4286,7 @@ static int ufshcd_hba_execute_hce(struct ufs_hba *hba)
 	return 0;
 }
 
-static int ufshcd_hba_enable(struct ufs_hba *hba)
+int ufshcd_hba_enable(struct ufs_hba *hba)
 {
 	int ret;
 
@@ -4310,6 +4311,8 @@ static int ufshcd_hba_enable(struct ufs_hba *hba)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(ufshcd_hba_enable);
+
 static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer)
 {
 	int tx_lanes, i, err = 0;

drivers/scsi/ufs/ufshcd.h

@@ -799,8 +799,11 @@ static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg)
 
 int ufshcd_alloc_host(struct device *, struct ufs_hba **);
 void ufshcd_dealloc_host(struct ufs_hba *);
+int ufshcd_hba_enable(struct ufs_hba *hba);
 int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
+int ufshcd_make_hba_operational(struct ufs_hba *hba);
 void ufshcd_remove(struct ufs_hba *);
+int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
 int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask,
 				u32 val, unsigned long interval_us,
 				unsigned long timeout_ms, bool can_sleep);