[PATCH v10 2/4] scsi: ufs: core: Add a helper for the system suspend callbacks

[HOYOUNG SEO <hy50.seo@samsung.com>]

Move the body of ufshcd_wl_suspend() into ufshcd_wl_system_suspend(),
which takes the PM operation as a parameter, so that it can be shared
with ufshcd_wl_poweroff() in the next patch. ufshcd_wl_suspend() calls it
with UFS_SYSTEM_PM.

No functional change, except that the error message printed when the
suspend fails now contains the name of the new function.

Suggested-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: HOYOUNG SEO <hy50.seo@samsung.com>
---
 drivers/ufs/core/ufshcd.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 3b5580ac390c..4825349e87fd 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -10712,7 +10712,7 @@ static int ufshcd_wl_runtime_resume(struct device *dev)
 #endif
 
 #ifdef CONFIG_PM_SLEEP
-static int ufshcd_wl_suspend(struct device *dev)
+static int ufshcd_wl_system_suspend(struct device *dev, enum ufs_pm_op pm_op)
 {
 	struct scsi_device *sdev = to_scsi_device(dev);
 	struct ufs_hba *hba;
@@ -10725,7 +10725,7 @@ static int ufshcd_wl_suspend(struct device *dev)
 	if (pm_runtime_suspended(dev))
 		goto out;
 
-	ret = __ufshcd_wl_suspend(hba, UFS_SYSTEM_PM);
+	ret = __ufshcd_wl_suspend(hba, pm_op);
 	if (ret) {
 		dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__,  ret);
 		up(&hba->host_sem);
@@ -10741,6 +10741,11 @@ static int ufshcd_wl_suspend(struct device *dev)
 	return ret;
 }
 
+static int ufshcd_wl_suspend(struct device *dev)
+{
+	return ufshcd_wl_system_suspend(dev, UFS_SYSTEM_PM);
+}
+
 static int ufshcd_wl_resume(struct device *dev)
 {
 	struct scsi_device *sdev = to_scsi_device(dev);
-- 
2.34.1