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authorNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>2018-11-29 05:01:44 +0300
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-01-16 19:47:14 +0300
commit6af61a0bc43201425afa6052d24f2a67648f69d2 (patch)
tree98f2dea0e766b3a0d423cdd4f8153e657f33e894 /Documentation/devicetree/bindings/media
parent467a37fba93f2b4fe3ab597ff6a517b22b566882 (diff)
downloadlinux-6af61a0bc43201425afa6052d24f2a67648f69d2.tar.xz
media: dt-bindings: adv748x: make data-lanes property mandatory for CSI-2 endpoints
The CSI-2 transmitters can use a different number of lanes to transmit data. Make the data-lanes mandatory for the endpoints that describe the transmitters as no good default can be set to fallback on. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/media')
-rw-r--r--Documentation/devicetree/bindings/media/i2c/adv748x.txt11
1 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/media/i2c/adv748x.txt b/Documentation/devicetree/bindings/media/i2c/adv748x.txt
index 5dddc95f9cc4..4f91686e54a6 100644
--- a/Documentation/devicetree/bindings/media/i2c/adv748x.txt
+++ b/Documentation/devicetree/bindings/media/i2c/adv748x.txt
@@ -48,7 +48,16 @@ are numbered as follows.
TXA source 10
TXB source 11
-The digital output port nodes must contain at least one endpoint.
+The digital output port nodes, when present, shall contain at least one
+endpoint. Each of those endpoints shall contain the data-lanes property as
+described in video-interfaces.txt.
+
+Required source endpoint properties:
+ - data-lanes: an array of physical data lane indexes
+ The accepted value(s) for this property depends on which of the two
+ sources are described. For TXA 1, 2 or 4 data lanes can be described
+ while for TXB only 1 data lane is valid. See video-interfaces.txt
+ for detailed description.
Ports are optional if they are not connected to anything at the hardware level.