Allow platform vendors to take precedence having their own rtt
negotiation mechanism. This makes sense because the host controller's
nortt characteristic may defer among vendors.
Signed-off-by: Avri Altman <avri.altman@xxxxxxx>
---
drivers/ufs/core/ufshcd.c | 5 ++++-
include/ufs/ufshcd.h | 2 ++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index c472bfdf071e..0407d1064e74 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -8312,7 +8312,10 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
if (hba->ext_iid_sup)
ufshcd_ext_iid_probe(hba, desc_buf);
- ufshcd_rtt_set(hba, desc_buf);
+ if (hba->vops && hba->vops->rtt_set)
+ hba->vops->rtt_set(hba, desc_buf);
+ else
+ ufshcd_rtt_set(hba, desc_buf);
/*
* ufshcd_read_string_desc returns size of the string
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index d74bd2d67b06..9237ea65bd26 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -329,6 +329,7 @@ struct ufs_pwr_mode_info {
* @get_outstanding_cqs: called to get outstanding completion queues
* @config_esi: called to config Event Specific Interrupt
* @config_scsi_dev: called to configure SCSI device parameters
+ * @rtt_set: negotiate rtt
*/
struct ufs_hba_variant_ops {
const char *name;
@@ -374,6 +375,7 @@ struct ufs_hba_variant_ops {
int (*get_outstanding_cqs)(struct ufs_hba *hba,
unsigned long *ocqs);
int (*config_esi)(struct ufs_hba *hba);
+ void (*rtt_set)(struct ufs_hba *hba, u8 *desc_buf);
};
/* clock gating state */
--
2.34.1
