1 files changed, 10 insertions, 3 deletions

diff --git a/Documentation/devicetree/bindings/hsi/omap-ssi.txt b/Documentation/devicetree/bindings/hsi/omap-ssi.txt
index b8eca3c7810d..955e335e7e56 100644
--- a/Documentation/devicetree/bindings/hsi/omap-ssi.txt
+++ b/Documentation/devicetree/bindings/hsi/omap-ssi.txt
@@ -1,10 +1,12 @@
 OMAP SSI controller bindings
 
-OMAP Synchronous Serial Interface (SSI) controller implements a legacy
-variant of MIPI's High Speed Synchronous Serial Interface (HSI).
+OMAP3's Synchronous Serial Interface (SSI) controller implements a
+legacy variant of MIPI's High Speed Synchronous Serial Interface (HSI),
+while the controller found inside OMAP4 is supposed to be fully compliant
+with the HSI standard.
 
 Required properties:
-- compatible:           Should include "ti,omap3-ssi".
+- compatible:           Should include "ti,omap3-ssi" or "ti,omap4-hsi"
 - reg-names:            Contains the values "sys" and "gdd" (in this order).
 - reg:                  Contains a matching register specifier for each entry
                         in reg-names.
@@ -27,6 +29,7 @@ Each port is represented as a sub-node of the ti,omap3-ssi device.
 Required Port sub-node properties:
 - compatible:           Should be set to the following value
                         ti,omap3-ssi-port (applicable to OMAP34xx devices)
+                        ti,omap4-hsi-port (applicable to OMAP44xx devices)
 - reg-names:            Contains the values "tx" and "rx" (in this order).
 - reg:                  Contains a matching register specifier for each entry
                         in reg-names.
@@ -38,6 +41,10 @@ Required Port sub-node properties:
                         property. If it's missing the port will not be
                         enabled.
 
+Optional properties:
+- ti,hwmods:            Shall contain TI interconnect module name if needed
+                        by the SoC
+
 Example for Nokia N900:
 
 ssi-controller@48058000 {