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>

1 files changed, 8 insertions, 1 deletions

diff --git a/Documentation/devicetree/bindings/arm/pmu.txt b/Documentation/devicetree/bindings/arm/pmu.txt
index 3e1e498fea96..ce731441e64f 100644
--- 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: