Thread (1 message) 1 message, 1 author, 2017-07-15
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[PATCH 1/4] dt-bindings: document the tegra CEC bindings

From: Hans Verkuil <hidden>
Date: 2017-07-15 12:47:50
Also in: dri-devel, linux-media, linux-tegra
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

Possibly related (same subject, not in this thread)

From: Hans Verkuil <redacted>

This documents the binding for the Tegra CEC module.

Signed-off-by: Hans Verkuil <redacted>
---
 .../devicetree/bindings/media/tegra-cec.txt        | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/tegra-cec.txt
diff --git a/Documentation/devicetree/bindings/media/tegra-cec.txt b/Documentation/devicetree/bindings/media/tegra-cec.txt
new file mode 100644
index 000000000000..ba0b6071acaa
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/tegra-cec.txt
@@ -0,0 +1,26 @@
+* Tegra HDMI CEC driver
+
+The HDMI CEC module is present in Tegra SoCs and its purpose is to
+handle communication between HDMI connected devices over the CEC bus.
+
+Required properties:
+  - compatible : value should be one of the following:
+	"nvidia,tegra114-cec"
+	"nvidia,tegra124-cec"
+	"nvidia,tegra210-cec"
+  - reg : Physical base address of the IP registers and length of memory
+	  mapped region.
+  - interrupts : HDMI CEC interrupt number to the CPU.
+  - clocks : from common clock binding: handle to HDMI CEC clock.
+  - clock-names : from common clock binding: must contain "cec",
+		  corresponding to ithe entry in the clocks property.
+  - hdmi-phandle : phandle to the HDMI controller, see also cec.txt.
+
+Example:
+
+tegra_cec {
+	compatible = "nvidia,tegra124-cec";
+	reg = <0x0 0x70015000 0x0 0x00001000>;
+	interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&tegra_car TEGRA124_CLK_CEC>;
+	clock-names = "cec";
-- 
2.11.0
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