1*4882a593SmuzhiyunQualcomm SLIMBus Non Generic Device (NGD) Controller binding 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunSLIMBus NGD controller is a light-weight driver responsible for communicating 4*4882a593Smuzhiyunwith SLIMBus slaves directly over the bus using messaging interface and 5*4882a593Smuzhiyuncommunicating with master component residing on ADSP for bandwidth and 6*4882a593Smuzhiyundata-channel management 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunPlease refer to slimbus/bus.txt for details of the common SLIMBus bindings. 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun- compatible: 11*4882a593Smuzhiyun Usage: required 12*4882a593Smuzhiyun Value type: <stringlist> 13*4882a593Smuzhiyun Definition: must be "qcom,slim-ngd-v<MAJOR>.<MINOR>.<STEP>" 14*4882a593Smuzhiyun must be one of the following. 15*4882a593Smuzhiyun "qcom,slim-ngd-v1.5.0" for MSM8996 16*4882a593Smuzhiyun "qcom,slim-ngd-v2.1.0" for SDM845 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun- reg: 19*4882a593Smuzhiyun Usage: required 20*4882a593Smuzhiyun Value type: <prop-encoded-array> 21*4882a593Smuzhiyun Definition: must specify the base address and size of the controller 22*4882a593Smuzhiyun register space. 23*4882a593Smuzhiyun- dmas 24*4882a593Smuzhiyun Usage: required 25*4882a593Smuzhiyun Value type: <array of phandles> 26*4882a593Smuzhiyun Definition: List of rx and tx dma channels 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun- dma-names 29*4882a593Smuzhiyun Usage: required 30*4882a593Smuzhiyun Value type: <stringlist> 31*4882a593Smuzhiyun Definition: must be "rx" and "tx". 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun- interrupts: 34*4882a593Smuzhiyun Usage: required 35*4882a593Smuzhiyun Value type: <prop-encoded-array> 36*4882a593Smuzhiyun Definition: must list controller IRQ. 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun#address-cells 39*4882a593Smuzhiyun Usage: required 40*4882a593Smuzhiyun Value type: <u32> 41*4882a593Smuzhiyun Definition: Should be 1, reflecting the instance id of ngd. 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun#size-cells 44*4882a593Smuzhiyun Usage: required 45*4882a593Smuzhiyun Value type: <u32> 46*4882a593Smuzhiyun Definition: Should be 0 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun= NGD Devices 49*4882a593SmuzhiyunEach subnode represents an instance of NGD, must contain the following 50*4882a593Smuzhiyunproperties: 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun- reg: 53*4882a593Smuzhiyun Usage: required 54*4882a593Smuzhiyun Value type: <u32> 55*4882a593Smuzhiyun Definition: Should be instance id of ngd. 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun#address-cells 58*4882a593Smuzhiyun Usage: required 59*4882a593Smuzhiyun Refer to slimbus/bus.txt for details of the common SLIMBus bindings. 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun#size-cells 62*4882a593Smuzhiyun Usage: required 63*4882a593Smuzhiyun Refer to slimbus/bus.txt for details of the common SLIMBus bindings. 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun= EXAMPLE 66*4882a593Smuzhiyun 67*4882a593Smuzhiyunslim@91c0000 { 68*4882a593Smuzhiyun compatible = "qcom,slim-ngd-v1.5.0"; 69*4882a593Smuzhiyun reg = <0x91c0000 0x2c000>; 70*4882a593Smuzhiyun interrupts = <0 163 0>; 71*4882a593Smuzhiyun dmas = <&slimbam 3>, <&slimbam 4>; 72*4882a593Smuzhiyun dma-names = "rx", "tx"; 73*4882a593Smuzhiyun #address-cells = <1>; 74*4882a593Smuzhiyun #size-cells = <0>; 75*4882a593Smuzhiyun ngd@1 { 76*4882a593Smuzhiyun reg = <1>; 77*4882a593Smuzhiyun #address-cells = <1>; 78*4882a593Smuzhiyun #size-cells = <1>; 79*4882a593Smuzhiyun codec@1 { 80*4882a593Smuzhiyun compatible = "slim217,1a0"; 81*4882a593Smuzhiyun reg = <1 0>; 82*4882a593Smuzhiyun }; 83*4882a593Smuzhiyun }; 84*4882a593Smuzhiyun}; 85