[PATCH v2 1/2] dt: bindings: media: Document practices for DT bindings, ports, endpoints
From: Sakari Ailus <hidden>
Date: 2017-09-22 07:42:13
Also in:
linux-media
Subsystem:
media input infrastructure (v4l/dvb), open firmware and flattened device tree bindings, the rest · Maintainers:
Mauro Carvalho Chehab, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Port and endpoint numbering has been omitted in DT binding documentation for a large number of devices. Also common properties the device uses have been missed in binding documentation. Make it explicit that these things need to be documented. Signed-off-by: Sakari Ailus <sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> --- .../devicetree/bindings/media/video-interfaces.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
index 852041a..3c5382f 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.txt
+++ b/Documentation/devicetree/bindings/media/video-interfaces.txt@@ -55,6 +55,21 @@ divided into two separate ITU-R BT.656 8-bit busses. In such case bus-width and data-shift properties can be used to assign physical data lines to each endpoint node (logical bus). +Documenting bindings for devices +-------------------------------- + +All required and optional bindings the device supports shall be explicitly +documented in device DT binding documentation. This also includes port and +endpoint numbering for the device. + +Port and endpoint numbering +--------------------------- + +Old binding documentation may have omitted explicitly specifying port and +endpoint numbers. This often applies to devices that have a single port and a +single endpoint in that port. In this case, the only valid port number for such +a device is zero. The same applies for devices for which bindings do not +document endpoint numbering: only zero is a valid endpoint. Required properties -------------------
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2.7.4
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