1*4882a593Smuzhiyun* Tegra HDMI CEC hardware 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunThe HDMI CEC module is present in Tegra SoCs and its purpose is to 4*4882a593Smuzhiyunhandle communication between HDMI connected devices over the CEC bus. 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunRequired properties: 7*4882a593Smuzhiyun - compatible : value should be one of the following: 8*4882a593Smuzhiyun "nvidia,tegra114-cec" 9*4882a593Smuzhiyun "nvidia,tegra124-cec" 10*4882a593Smuzhiyun "nvidia,tegra210-cec" 11*4882a593Smuzhiyun - reg : Physical base address of the IP registers and length of memory 12*4882a593Smuzhiyun mapped region. 13*4882a593Smuzhiyun - interrupts : HDMI CEC interrupt number to the CPU. 14*4882a593Smuzhiyun - clocks : from common clock binding: handle to HDMI CEC clock. 15*4882a593Smuzhiyun - clock-names : from common clock binding: must contain "cec", 16*4882a593Smuzhiyun corresponding to the entry in the clocks property. 17*4882a593Smuzhiyun - hdmi-phandle : phandle to the HDMI controller, see also cec.txt. 18*4882a593Smuzhiyun 19*4882a593SmuzhiyunExample: 20*4882a593Smuzhiyun 21*4882a593Smuzhiyuncec@70015000 { 22*4882a593Smuzhiyun compatible = "nvidia,tegra124-cec"; 23*4882a593Smuzhiyun reg = <0x0 0x70015000 0x0 0x00001000>; 24*4882a593Smuzhiyun interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>; 25*4882a593Smuzhiyun clocks = <&tegra_car TEGRA124_CLK_CEC>; 26*4882a593Smuzhiyun clock-names = "cec"; 27*4882a593Smuzhiyun}; 28