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-rw-r--r--Documentation/devicetree/bindings/hsi/omap-ssi.txt13
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 {