The DDRPERFM is the DDR Performance Monitor embedded in STM32MP1 SOC.

This documentation indicates how to enable stm32-ddr-pmu driver on
DDRPERFM peripheral, via the device tree.

Signed-off-by: Gerald Baeza <gerald.ba...@st.com>
---
 Documentation/devicetree/bindings/perf/stm32-ddr-pmu.txt | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/perf/stm32-ddr-pmu.txt

diff --git a/Documentation/devicetree/bindings/perf/stm32-ddr-pmu.txt 
b/Documentation/devicetree/bindings/perf/stm32-ddr-pmu.txt
new file mode 100644
index 0000000..87ab12e
--- /dev/null
+++ b/Documentation/devicetree/bindings/perf/stm32-ddr-pmu.txt
@@ -0,0 +1,16 @@
+* STM32 DDR Performance Monitor (DDRPERFM)
+
+Required properties:
+- compatible: must be "st,stm32-ddr-pmu".
+- reg: physical address and length of the registers set.
+- clocks: phandle and specifier for DDRPERFM input clock
+- resets: phandle and specifier for DDRPERFM reset
+
+Example:
+       ddrperfm: perf@5a007000 {
+               compatible = "st,stm32-ddr-pmu";
+               reg = <0x5a007000 0x400>;
+               clocks = <&rcc DDRPERFM>;
+               resets = <&rcc DDRPERFM_R>;
+       };
+
-- 
2.7.4

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