ARM: shmobile: r8a7778: common clock framework CPG driver

Driver for the r8a7778's clocks that depend on the mode bits.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Michael Turquette <mturquette@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 25 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/renesas,r8a7778-cpg-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,r8a7778-cpg-clocks.txt
new file mode 100644
index 000000000000..2f3747fdcf1c
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+++ b/Documentation/devicetree/bindings/clock/renesas,r8a7778-cpg-clocks.txt
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+* Renesas R8A7778 Clock Pulse Generator (CPG)
+
+The CPG generates core clocks for the R8A7778. It includes two PLLs and
+several fixed ratio dividers
+
+Required Properties:
+
+  - compatible: Must be "renesas,r8a7778-cpg-clocks"
+  - reg: Base address and length of the memory resource used by the CPG
+  - #clock-cells: Must be 1
+  - clock-output-names: The names of the clocks. Supported clocks are
+    "plla", "pllb", "b", "out", "p", "s", and "s1".
+
+
+Example
+-------
+
+        cpg_clocks: cpg_clocks@ffc80000 {
+                compatible = "renesas,r8a7778-cpg-clocks";
+                reg = <0xffc80000 0x80>;
+                #clock-cells = <1>;
+                clocks = <&extal_clk>;
+                clock-output-names = "plla", "pllb", "b",
+                                     "out", "p", "s", "s1";
+        };