At present, I just add command history print and
you can add various vendor regions.
Signed-off-by: Kiwoong Kim <kwmad.kim@xxxxxxxxxxx>
---
drivers/scsi/ufs/ufs-exynos.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 8c60f7d..815c361 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1246,6 +1246,29 @@ static int exynos_ufs_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
return 0;
}
+static void exynos_ufs_dbg_register_dump(struct ufs_hba *hba)
+{
+ struct exynos_ufs *ufs = ufshcd_get_variant(hba);
+ unsigned long flags;
+
+ spin_lock_irqsave(&ufs->dbg_lock, flags);
+ if (ufs->under_dump == 0)
+ ufs->under_dump = 1;
+ else {
+ spin_unlock_irqrestore(&ufs->dbg_lock, flags);
+ goto out;
+ }
+ spin_unlock_irqrestore(&ufs->dbg_lock, flags);
+
+ exynos_ufs_dump_info(&ufs->handle, hba->dev);
+
+ spin_lock_irqsave(&ufs->dbg_lock, flags);
+ ufs->under_dump = 0;
+ spin_unlock_irqrestore(&ufs->dbg_lock, flags);
+out:
+ return;
+}
+
static struct ufs_hba_variant_ops ufs_hba_exynos_ops = {
.name = "exynos_ufs",
.init = exynos_ufs_init,
@@ -1258,6 +1281,7 @@ static struct ufs_hba_variant_ops ufs_hba_exynos_ops = {
.hibern8_notify = exynos_ufs_hibern8_notify,
.suspend = exynos_ufs_suspend,
.resume = exynos_ufs_resume,
+ .dbg_register_dump = exynos_ufs_dbg_register_dump,
};
static int exynos_ufs_probe(struct platform_device *pdev)
--
2.7.4
