The patch set adds system PMU support for i.MX8 DDR Perf. The sysfs location for userspace to get the PMU identifier under the directory: /sys/bus/event_source/devices/<PMU DEVICE>/identifier ChangeLogs: V1 -> V2: *add property in dt instead of changing compatible string. Joakim Zhang (3): bindings: perf: imx8_ddr: add identifier property perf/imx_ddr: Add system PMU identifier for userspace arm64: dts: imx8/8mm/8mn/8mq: add identifier for DDR perf .../devicetree/bindings/perf/fsl-imx-ddr.txt | 3 ++ arch/arm64/boot/dts/freescale/imx8mm.dtsi | 1 + arch/arm64/boot/dts/freescale/imx8mn.dtsi | 1 + arch/arm64/boot/dts/freescale/imx8mq.dtsi | 1 + arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 1 + drivers/perf/fsl_imx8_ddr_perf.c | 29 +++++++++++++++++++ 6 files changed, 36 insertions(+) -- 2.17.1
