[PATCH V2 1/3] bindings: perf: imx8_ddr: add identifier property

[Joakim Zhang]

Add "identifier" property for DDR Perf which used to identity system pmu.

Signed-off-by: Joakim Zhang <qiangqing.zhang@xxxxxxx>
---
 Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
index 7822a806ea0a..ebb9a40094c5 100644
--- a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
+++ b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.txt
@@ -12,6 +12,8 @@ Required properties:
 - interrupts: single interrupt
 	generated by the control block
 
+- identifier: identify system pmu
+
 Example:
 
 	ddr-pmu@5c020000 {
@@ -19,4 +21,5 @@ Example:
 		reg = <0x5c020000 0x10000>;
 		interrupt-parent = <&gic>;
 		interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>;
+		identifier = "i.mx8mm";
 	};
-- 
2.17.1