Documentation: ufs: enable scramble bit

Add details for the dt property 'nvidia,enable-scramble' which enables
the scrambling functionality for ufs.

Bug 200385100

Change-Id: I4eb43fbb1e294d083d3ec20d0f442f2723ea8fe7
Signed-off-by: Sri Sai Ram Tangirala <stangirala@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1739116
Reviewed-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-tegra.txt b/Documentation/devicetree/bindings/ufs/ufshcd-tegra.txt
index 61f46754d..e51f8de58 100644
--- a/Documentation/devicetree/bindings/ufs/ufshcd-tegra.txt
+++ b/Documentation/devicetree/bindings/ufs/ufshcd-tegra.txt
@@ -21,6 +21,9 @@ Optional properties:
 - nvidia,configure-uphy-pll3 : Provides an option to configure uphy_pll3 for
                                ufs rate_a and rate_b modes.
 
+- nvidia,enable-scramble : Enables scramble functionality.
+                           It is required to enable scramble functionality, which is used for
+                           encryption.
 - nvidia,enable-rx-calib : Enables rx calibration functionality.
                            It is required for UFS High Speed modes.
 - nvidia,enable-x2-config : Enables 2 lane register programming support.