dt-bindings: clock: Document qcom,krait-cc

The Krait clock controller controls the krait CPU and the L2 clocks
consisting a primary mux and secondary mux. Add document for that.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt b/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt
new file mode 100644 (file)
index 0000000..030ba60
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt
@@ -0,0 +1,34 @@
+Krait Clock Controller
+
+PROPERTIES
+
+- compatible:
+       Usage: required
+       Value type: <string>
+       Definition: must be one of:
+                       "qcom,krait-cc-v1"
+                       "qcom,krait-cc-v2"
+
+- #clock-cells:
+       Usage: required
+       Value type: <u32>
+       Definition: must be 1
+
+- clocks:
+       Usage: required
+       Value type: <prop-encoded-array>
+       Definition: reference to the clock parents of hfpll, secondary muxes.
+
+- clock-names:
+       Usage: required
+       Value type: <stringlist>
+       Definition: must be "hfpll0", "hfpll1", "acpu0_aux", "acpu1_aux", "qsb".
+
+Example:
+
+       kraitcc: clock-controller {
+               compatible = "qcom,krait-cc-v1";
+               clocks = <&hfpll0>, <&hfpll1>, <&acpu0_aux>, <&acpu1_aux>, <qsb>;
+               clock-names = "hfpll0", "hfpll1", "acpu0_aux", "acpu1_aux", "qsb";
+               #clock-cells = <1>;
+       };