2fada528b354217bfbebfb864779dd2804a4b190a7cebfd2a45886e7.patch

From 95e0d092750f2d228d4ca24f1c4006a4996dd3bd Mon Sep 17 00:00:00 2001
From: Asutosh Das <asutoshd@codeaurora.org>
Date: Mon, 3 Feb 2020 14:11:50 +0000
Subject: [PATCH] FROMLIST: scsi: ufs: export hibern8 entry and exit

Qualcomm controllers need to be in hibern8 before scaling up
or down the clocks. Hence, export the hibern8 entry and exit
functions.

Bug: 143136976
Link: https://lore.kernel.org/lkml/1571849351-819-1-git-send-email-asutoshd@codeaurora.org/
Change-Id: Ie7dc3b953790642e6d2893de6e6cc8c9cfb8be6d
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
---
 drivers/scsi/ufs/ufshcd.c | 4 ++--
 drivers/scsi/ufs/ufshcd.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 708b3b62fc4d..97a4389219ed 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -232,7 +232,6 @@ static void ufshcd_hba_exit(struct ufs_hba *hba);
 static int ufshcd_clear_ua_wluns(struct ufs_hba *hba);
 static int ufshcd_probe_hba(struct ufs_hba *hba, bool async);
 static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);
-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);
 static void ufshcd_resume_clkscaling(struct ufs_hba *hba);
@@ -4129,7 +4128,7 @@ int ufshcd_link_recovery(struct ufs_hba *hba)
 }
 EXPORT_SYMBOL_GPL(ufshcd_link_recovery);
 
-static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
+int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
 {
 	int ret;
 	struct uic_command uic_cmd = {0};
@@ -4151,6 +4150,7 @@ static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_enter);
 
 int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
 {
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index c98d540ac044..6fd149e5d086 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1363,4 +1363,6 @@ static inline int ufshcd_rpmb_rpm_put(struct ufs_hba *hba)
 	return pm_runtime_put(&hba->sdev_rpmb->sdev_gendev);
 }
 
+int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
+int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
 #endif /* End of Header */
-- 
2.32.0.93.g670b81a890-goog