media: dt-bindings: document the tegra CEC bindings
This documents the binding for the Tegra CEC module. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
parent
bc64ce98d6
commit
d524b8fc75
27
Documentation/devicetree/bindings/media/tegra-cec.txt
Normal file
27
Documentation/devicetree/bindings/media/tegra-cec.txt
Normal file
|
@ -0,0 +1,27 @@
|
|||
* Tegra HDMI CEC hardware
|
||||
|
||||
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 the entry in the clocks property.
|
||||
- hdmi-phandle : phandle to the HDMI controller, see also cec.txt.
|
||||
|
||||
Example:
|
||||
|
||||
cec@70015000 {
|
||||
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";
|
||||
};
|
Loading…
Reference in a new issue