devicetree: bindings: Document Krait performance monitor units (PMU)

Document the Krait PMU compatible string.

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/Documentation/devicetree/bindings/arm/pmu.txt b/Documentation/devicetree/bindings/arm/pmu.txt
index 3e1e498fea96b357ff990f6fbb682dd43f5254cc..ce731441e64fcda32aaba17e3c1817967bb84a23 100644 (file)
--- a/Documentation/devicetree/bindings/arm/pmu.txt
+++ b/Documentation/devicetree/bindings/arm/pmu.txt
@@ -16,7 +16,14 @@ Required properties:
        "arm,arm11mpcore-pmu"
        "arm,arm1176-pmu"
        "arm,arm1136-pmu"
-- interrupts : 1 combined interrupt or 1 per core.
+       "qcom,krait-pmu"
+- interrupts : 1 combined interrupt or 1 per core. If the interrupt is a per-cpu
+               interrupt (PPI) then 1 interrupt should be specified.
+
+Optional properties:
+
+- qcom,no-pc-write : Indicates that this PMU doesn't support the 0xc and 0xd
+                     events.
 
 Example: