1*4882a593Smuzhiyun* Samsung HDMI CEC driver 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunThe HDMI CEC module is present is Samsung 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 following 8*4882a593Smuzhiyun "samsung,s5p-cec" 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun - reg : Physical base address of the IP registers and length of memory 11*4882a593Smuzhiyun mapped region. 12*4882a593Smuzhiyun 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 "hdmicec", 16*4882a593Smuzhiyun corresponding to entry in the clocks property. 17*4882a593Smuzhiyun - samsung,syscon-phandle - phandle to the PMU system controller 18*4882a593Smuzhiyun - hdmi-phandle - phandle to the HDMI controller, see also cec.txt. 19*4882a593Smuzhiyun 20*4882a593SmuzhiyunOptional: 21*4882a593Smuzhiyun - needs-hpd : if present the CEC support is only available when the HPD 22*4882a593Smuzhiyun is high. See cec.txt for more details. 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunExample: 25*4882a593Smuzhiyun 26*4882a593Smuzhiyunhdmicec: cec@100b0000 { 27*4882a593Smuzhiyun compatible = "samsung,s5p-cec"; 28*4882a593Smuzhiyun reg = <0x100B0000 0x200>; 29*4882a593Smuzhiyun interrupts = <0 114 0>; 30*4882a593Smuzhiyun clocks = <&clock CLK_HDMI_CEC>; 31*4882a593Smuzhiyun clock-names = "hdmicec"; 32*4882a593Smuzhiyun samsung,syscon-phandle = <&pmu_system_controller>; 33*4882a593Smuzhiyun hdmi-phandle = <&hdmi>; 34*4882a593Smuzhiyun pinctrl-names = "default"; 35*4882a593Smuzhiyun pinctrl-0 = <&hdmi_cec>; 36*4882a593Smuzhiyun}; 37