linux-kernel - [PATCH v3 05/10] media: dt-bindings: video-interfaces: Support DisplayPort MST

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Message-ID: <20240507155413.266057-6-panikiel@google.com>
Date: Tue,  7 May 2024 15:54:08 +0000
From: "Paweł Anikiel" <panikiel@...gle.com>
To: airlied@...il.com, akpm@...ux-foundation.org, conor+dt@...nel.org, 
	daniel@...ll.ch, dinguyen@...nel.org, hverkuil-cisco@...all.nl, 
	krzysztof.kozlowski+dt@...aro.org, maarten.lankhorst@...ux.intel.com, 
	mchehab@...nel.org, mripard@...nel.org, robh+dt@...nel.org, 
	tzimmermann@...e.de
Cc: devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org, 
	chromeos-krk-upstreaming@...gle.com, 
	"Paweł Anikiel" <panikiel@...gle.com>
Subject: [PATCH v3 05/10] media: dt-bindings: video-interfaces: Support
 DisplayPort MST

Add a DisplayPort bus type and a multi-stream-support property
indicating whether the interface supports MST.

Signed-off-by: Paweł Anikiel <panikiel@...gle.com>
---
 .../devicetree/bindings/media/video-interfaces.yaml        | 7 +++++++
 include/dt-bindings/media/video-interfaces.h               | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/video-interfaces.yaml b/Documentation/devicetree/bindings/media/video-interfaces.yaml
index 26e3e7d7c67b..7bf3a2c09a5b 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.yaml
+++ b/Documentation/devicetree/bindings/media/video-interfaces.yaml
@@ -94,6 +94,7 @@ properties:
       - 5 # Parallel
       - 6 # BT.656
       - 7 # DPI
+      - 8 # DisplayPort
     description:
       Data bus type.
 
@@ -217,4 +218,10 @@ properties:
       Whether the clock signal is used as clock (0) or strobe (1). Used with
       CCP2, for instance.
 
+  multi-stream-support:
+    type: boolean
+    description:
+      Support transport of multiple independent streams. Used for
+      DisplayPort MST-capable interfaces.
+
 additionalProperties: true
diff --git a/include/dt-bindings/media/video-interfaces.h b/include/dt-bindings/media/video-interfaces.h
index 68ac4e05e37f..b236806f4482 100644
--- a/include/dt-bindings/media/video-interfaces.h
+++ b/include/dt-bindings/media/video-interfaces.h
@@ -12,5 +12,7 @@
 #define MEDIA_BUS_TYPE_CSI2_DPHY		4
 #define MEDIA_BUS_TYPE_PARALLEL			5
 #define MEDIA_BUS_TYPE_BT656			6
+#define MEDIA_BUS_TYPE_DPI			7
+#define MEDIA_BUS_TYPE_DISPLAYPORT		8
 
 #endif /* __DT_BINDINGS_MEDIA_VIDEO_INTERFACES_H__ */
-- 
2.45.0.rc1.225.g2a3ae87e7f-goog