^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) * Tegra HDMI CEC hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) The HDMI CEC module is present in Tegra SoCs and its purpose is to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) handle communication between HDMI connected devices over the CEC bus.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) Required properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) - compatible : value should be one of the following:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) "nvidia,tegra114-cec"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) "nvidia,tegra124-cec"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) "nvidia,tegra210-cec"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) - reg : Physical base address of the IP registers and length of memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) mapped region.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) - interrupts : HDMI CEC interrupt number to the CPU.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) - clocks : from common clock binding: handle to HDMI CEC clock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) - clock-names : from common clock binding: must contain "cec",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) corresponding to the entry in the clocks property.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) - hdmi-phandle : phandle to the HDMI controller, see also cec.txt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) Example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) cec@70015000 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) compatible = "nvidia,tegra124-cec";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) reg = <0x0 0x70015000 0x0 0x00001000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) clocks = <&tegra_car TEGRA124_CLK_CEC>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) clock-names = "cec";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };