[V1,RESEND,0/3] perf/imx_ddr: Add system PMU support

Message

Joakim Zhang May 12, 2020, 7:31 a.m. UTC

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

Joakim Zhang (3):
  perf/imx_ddr: Add system PMU identifier for userspace
  bindings/perf/imx-ddr: update compatible string
  arch: arm64: imx8mq/m/n: remove unused compatible string

 .../devicetree/bindings/perf/fsl-imx-ddr.txt  |  4 +-
 arch/arm64/boot/dts/freescale/imx8mm.dtsi     |  2 +-
 arch/arm64/boot/dts/freescale/imx8mn.dtsi     |  2 +-
 arch/arm64/boot/dts/freescale/imx8mq.dtsi     |  2 +-
 drivers/perf/fsl_imx8_ddr_perf.c              | 45 +++++++++++++++++--
 5 files changed, 48 insertions(+), 7 deletions(-)