[PATCH v4 2/8] scsi: ufs: introduce fixup_dev_quirks vops

[Stanley Chu]

Some UFS deivces may have required device quirks or have non-standard
features which are enabled only on specified UFS hosts or for special
customers.

To not "pollute" common device quirk list, i.e., ufs_fixups table for
those devices mentioned above, introduce "fixup_dev_quirks" vops to
allow vendors to fix or modify device quirks accordingly.

Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
---
 drivers/scsi/ufs/ufshcd.c | 1 +
 drivers/scsi/ufs/ufshcd.h | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 04ddfb15e858..da7b375709b6 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6899,6 +6899,7 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
 	}
 
 	ufs_fixup_device_setup(hba);
+	ufshcd_vops_fixup_dev_quirks(hba);
 
 	/*
 	 * Probe WB only for UFS-3.1 devices or UFS devices with quirk
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 056537e52c19..5fa03e0f3bd1 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -336,6 +336,7 @@ struct ufs_hba_variant_ops {
 	void    (*hibern8_notify)(struct ufs_hba *, enum uic_cmd_dme,
 					enum ufs_notify_change_status);
 	int	(*apply_dev_quirks)(struct ufs_hba *hba);
+	void	(*fixup_dev_quirks)(struct ufs_hba *hba);
 	int     (*suspend)(struct ufs_hba *, enum ufs_pm_op);
 	int     (*resume)(struct ufs_hba *, enum ufs_pm_op);
 	void	(*dbg_register_dump)(struct ufs_hba *hba);
@@ -1085,6 +1086,12 @@ static inline int ufshcd_vops_apply_dev_quirks(struct ufs_hba *hba)
 	return 0;
 }
 
+static inline void ufshcd_vops_fixup_dev_quirks(struct ufs_hba *hba)
+{
+	if (hba->vops && hba->vops->fixup_dev_quirks)
+		hba->vops->fixup_dev_quirks(hba);
+}
+
 static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op)
 {
 	if (hba->vops && hba->vops->suspend)
-- 
2.18.0