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authorTony Lindgren <tony@atomide.com>2017-10-01 18:17:26 +0300
committerSebastian Reichel <sre@kernel.org>2017-10-01 18:19:54 +0300
commit8635d6b3afe68cdde2f646c2a3bbd8149c031e8c (patch)
tree77d027679c89b888969e7d24e766665916b97a9e /Documentation/devicetree/bindings/hsi
parent36edec05a27d6c07ca8d38a01e98b0d71408ab9d (diff)
downloadlinux-8635d6b3afe68cdde2f646c2a3bbd8149c031e8c.tar.xz
dt-bindings: hsi: add omap4 hsi controller bindings
Update omap-ssi binding document to also cover the HSI compliant module from OMAP4. Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Rob Herring <robh@kernel.org> [dropped the omap.dtsi update and updated patch description accordingly] Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/hsi')
-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 {