1Broadcom BCM2835 CPRMAN clocks 2 3This binding uses the common clock binding: 4 Documentation/devicetree/bindings/clock/clock-bindings.txt 5 6The CPRMAN clock controller generates clocks in the audio power domain 7of the BCM2835. There is a level of PLLs deriving from an external 8oscillator, a level of PLL dividers that produce channels off of the 9few PLLs, and a level of mostly-generic clock generators sourcing from 10the PLL channels. Most other hardware components source from the 11clock generators, but a few (like the ARM or HDMI) will source from 12the PLL dividers directly. 13 14Required properties: 15- compatible: should be one of the following, 16 "brcm,bcm2711-cprman" 17 "brcm,bcm2835-cprman" 18- #clock-cells: Should be <1>. The permitted clock-specifier values can be 19 found in include/dt-bindings/clock/bcm2835.h 20- reg: Specifies base physical address and size of the registers 21- clocks: phandles to the parent clocks used as input to the module, in 22 the following order: 23 24 - External oscillator 25 - DSI0 byte clock 26 - DSI0 DDR2 clock 27 - DSI0 DDR clock 28 - DSI1 byte clock 29 - DSI1 DDR2 clock 30 - DSI1 DDR clock 31 32 Only external oscillator is required. The DSI clocks may 33 not be present, in which case their children will be 34 unusable. 35 36Example: 37 38 clk_osc: clock@3 { 39 compatible = "fixed-clock"; 40 reg = <3>; 41 #clock-cells = <0>; 42 clock-output-names = "osc"; 43 clock-frequency = <19200000>; 44 }; 45 46 clocks: cprman@7e101000 { 47 compatible = "brcm,bcm2835-cprman"; 48 #clock-cells = <1>; 49 reg = <0x7e101000 0x2000>; 50 clocks = <&clk_osc>; 51 }; 52 53 i2c0: i2c@7e205000 { 54 compatible = "brcm,bcm2835-i2c"; 55 reg = <0x7e205000 0x1000>; 56 interrupts = <2 21>; 57 clocks = <&clocks BCM2835_CLOCK_VPU>; 58 #address-cells = <1>; 59 #size-cells = <0>; 60 }; 61