xref: /freebsd/sys/contrib/device-tree/Bindings/media/tegra-cec.txt (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1* Tegra HDMI CEC hardware
2
3The HDMI CEC module is present in Tegra SoCs and its purpose is to
4handle communication between HDMI connected devices over the CEC bus.
5
6Required properties:
7  - compatible : value should be one of the following:
8	"nvidia,tegra114-cec"
9	"nvidia,tegra124-cec"
10	"nvidia,tegra210-cec"
11  - reg : Physical base address of the IP registers and length of memory
12	  mapped region.
13  - interrupts : HDMI CEC interrupt number to the CPU.
14  - clocks : from common clock binding: handle to HDMI CEC clock.
15  - clock-names : from common clock binding: must contain "cec",
16		  corresponding to the entry in the clocks property.
17  - hdmi-phandle : phandle to the HDMI controller, see also cec.txt.
18
19Example:
20
21cec@70015000 {
22	compatible = "nvidia,tegra124-cec";
23	reg = <0x0 0x70015000 0x0 0x00001000>;
24	interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
25	clocks = <&tegra_car TEGRA124_CLK_CEC>;
26	clock-names = "cec";
27};
28