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Diffstat (limited to 'drivers/scsi/ufs/ufshcd.h')
-rw-r--r--drivers/scsi/ufs/ufshcd.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 4a574aa45855..b47ff07698e8 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -366,6 +366,7 @@ struct ufs_init_prefetch {
* @saved_err: sticky error mask
* @saved_uic_err: sticky UIC error mask
* @dev_cmd: ufs device management command information
+ * @last_dme_cmd_tstamp: time stamp of the last completed DME command
* @auto_bkops_enabled: to track whether bkops is enabled in device
* @vreg_info: UFS device voltage regulator information
* @clk_list_head: UFS host controller clocks list node head
@@ -416,6 +417,13 @@ struct ufs_hba {
unsigned int irq;
bool is_irq_enabled;
+ /*
+ * delay before each dme command is required as the unipro
+ * layer has shown instabilities
+ */
+ #define UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS UFS_BIT(0)
+
+ unsigned int quirks; /* Deviations from standard UFSHCI spec. */
wait_queue_head_t tm_wq;
wait_queue_head_t tm_tag_wq;
@@ -446,6 +454,7 @@ struct ufs_hba {
/* Device management request data */
struct ufs_dev_cmd dev_cmd;
+ ktime_t last_dme_cmd_tstamp;
/* Keeps information of the UFS device connected to this host */
struct ufs_dev_info dev_info;