Merge tag 'fix-missing-panels' into fixes
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / clock / brcm,bcm2835-cprman.txt
1 Broadcom BCM2835 CPRMAN clocks
2
3 This binding uses the common clock binding:
4     Documentation/devicetree/bindings/clock/clock-bindings.txt
5
6 The CPRMAN clock controller generates clocks in the audio power domain
7 of the BCM2835.  There is a level of PLLs deriving from an external
8 oscillator, a level of PLL dividers that produce channels off of the
9 few PLLs, and a level of mostly-generic clock generators sourcing from
10 the PLL channels.  Most other hardware components source from the
11 clock generators, but a few (like the ARM or HDMI) will source from
12 the PLL dividers directly.
13
14 Required 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
36 Example:
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         };