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author | Boris BREZILLON <boris.brezillon@free-electrons.com> | 2014-05-09 13:11:48 +0200 |
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committer | Lee Jones <lee.jones@linaro.org> | 2014-06-03 09:11:40 +0200 |
commit | e4e3d1b03695c458a954954c8efae745517dd44d (patch) | |
tree | a027360baa5b27cde230f0057c80ef017ae29a95 /Documentation/devicetree/bindings/mfd | |
parent | mfd: rtsx_usb: Make mfd_cell array const (diff) | |
download | linux-e4e3d1b03695c458a954954c8efae745517dd44d.tar.xz linux-e4e3d1b03695c458a954954c8efae745517dd44d.zip |
mfd: sun6i-prcm: Document DT bindings
Document DT bindings of the PRCM (Power/Reset/Clock Management) unit.
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mfd')
-rw-r--r-- | Documentation/devicetree/bindings/mfd/sun6i-prcm.txt | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt new file mode 100644 index 000000000000..1f5a31fef907 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt @@ -0,0 +1,59 @@ +* Allwinner PRCM (Power/Reset/Clock Management) Multi-Functional Device + +PRCM is an MFD device exposing several Power Management related devices +(like clks and reset controllers). + +Required properties: + - compatible: "allwinner,sun6i-a31-prcm" + - reg: The PRCM registers range + +The prcm node may contain several subdevices definitions: + - see Documentation/devicetree/clk/sunxi.txt for clock devices + - see Documentation/devicetree/reset/allwinner,sunxi-clock-reset.txt for reset + controller devices + + +Example: + + prcm: prcm@01f01400 { + compatible = "allwinner,sun6i-a31-prcm"; + reg = <0x01f01400 0x200>; + + /* Put subdevices here */ + ar100: ar100_clk { + compatible = "allwinner,sun6i-a31-ar100-clk"; + #clock-cells = <0>; + clocks = <&osc32k>, <&osc24M>, <&pll6>, <&pll6>; + }; + + ahb0: ahb0_clk { + compatible = "fixed-factor-clock"; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + clocks = <&ar100_div>; + clock-output-names = "ahb0"; + }; + + apb0: apb0_clk { + compatible = "allwinner,sun6i-a31-apb0-clk"; + #clock-cells = <0>; + clocks = <&ahb0>; + clock-output-names = "apb0"; + }; + + apb0_gates: apb0_gates_clk { + compatible = "allwinner,sun6i-a31-apb0-gates-clk"; + #clock-cells = <1>; + clocks = <&apb0>; + clock-output-names = "apb0_pio", "apb0_ir", + "apb0_timer01", "apb0_p2wi", + "apb0_uart", "apb0_1wire", + "apb0_i2c"; + }; + + apb0_rst: apb0_rst { + compatible = "allwinner,sun6i-a31-clock-reset"; + #reset-cells = <1>; + }; + }; |