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linux-next/Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt
Simon Horman 7b42a997bf clk: shmobile: r8a7779: Add clocks support
The R8A7779 SoC has several clocks that are too custom to be supported in a
generic driver. Those clocks are all fixed rate clocks with multiplier and
divisor set according to boot mode configuration.

Based on work for R-Car Gen2 SoCs by Laurent Pinchart.

Cc: devicetree@vger.kernel.org
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-05-12 23:07:40 -07:00

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* Renesas R8A7779 Clock Pulse Generator (CPG)
The CPG generates core clocks for the R8A7779. It includes one PLL and
several fixed ratio dividers
Required Properties:
- compatible: Must be "renesas,r8a7779-cpg-clocks"
- reg: Base address and length of the memory resource used by the CPG
- clocks: Reference to the parent clock
- #clock-cells: Must be 1
- clock-output-names: The names of the clocks. Supported clocks are "plla",
"z", "zs", "s", "s1", "p", "b", "out".
Example
-------
cpg_clocks: cpg_clocks@ffc80000 {
compatible = "renesas,r8a7779-cpg-clocks";
reg = <0 0xffc80000 0 0x30>;
clocks = <&extal_clk>;
#clock-cells = <1>;
clock-output-names = "plla", "z", "zs", "s", "s1", "p",
"b", "out";
};