[PATCH 1/3] dt-bindings: document the CEC GPIO bindings
From: Hans Verkuil <hidden>
Date: 2017-08-02 08:42:40
Also in:
dri-devel, 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
Possibly related (same subject, not in this thread)
- 2017-08-10 · Re: [PATCH 1/3] dt-bindings: document the CEC GPIO bindings · Hans Verkuil <hidden>
- 2017-08-10 · Re: [PATCH 1/3] dt-bindings: document the CEC GPIO bindings · Hans Verkuil <hidden>
From: Hans Verkuil <redacted> Document the bindings for the cec-gpio module for hardware where the CEC pin is connected to a GPIO pin. Signed-off-by: Hans Verkuil <redacted> --- Documentation/devicetree/bindings/media/cec-gpio.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/cec-gpio.txt
diff --git a/Documentation/devicetree/bindings/media/cec-gpio.txt b/Documentation/devicetree/bindings/media/cec-gpio.txt
new file mode 100644
index 000000000000..58fa56080cda
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/cec-gpio.txt@@ -0,0 +1,18 @@ +* HDMI CEC GPIO driver + +The HDMI CEC GPIO module supports CEC implementations where the CEC pin +is hooked up to a pull-up GPIO pin. + +The CEC GPIO + +Required properties: + - compatible: value must be "cec-gpio" + - gpio: gpio that the CEC line is connected to + +Example for the Raspberry Pi 3 where the CEC line is connected to +pin 7 aka BCM4 aka GPCLK0 on the GPIO pin header: + +cec-gpio { + compatible = "cec-gpio"; + gpio = <&gpio 4 GPIO_ACTIVE_HIGH>; +};
--
2.13.2
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