linux-kernel - [PATCH 0/6] perf/imx_ddr: Add i.MX8QM and pmu in DB (system interconnects)

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Message-Id: <20251023-qm_dts-v1-0-9830d6a45939@nxp.com>
Date: Thu, 23 Oct 2025 14:56:40 -0400
From: Frank Li <Frank.Li@....com>
To: Frank Li <Frank.li@....com>, Xu Yang <xu.yang_2@....com>, 
 Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: Frank Li <frank.li@....com>, linux-arm-kernel@...ts.infradead.org, 
 linux-perf-users@...r.kernel.org, devicetree@...r.kernel.org, 
 imx@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 Frank Li <Frank.Li@....com>, Joakim Zhang <qiangqing.zhang@....com>, 
 Jacky Bai <ping.bai@....com>
Subject: [PATCH 0/6] perf/imx_ddr: Add i.MX8QM and pmu in DB (system
 interconnects)

dts: add soc specific compatible string for imx8qm, imx8qxp, imx8dxl in db.
driver:
 - did some cleanup
 - add support for pmu in imx8dxl DB
binding:
 - add compatible string for imx8qm, imx8qxp, imx8dxl in db

Signed-off-by: Frank Li <Frank.Li@....com>
---
Frank Li (4):
      dt-bindings: perf: fsl-imx-ddr: Add compatible string for i.MX8QM, i.MX8QXP and i.MX8DXL
      perf/imx_ddr: Move ida_alloc() from ddr_perf_init() to ddr_perf_probe()
      perf/imx_ddr: Get and enable optional clks
      arm64: dts: imx8qm: add ddr perf device node

Jacky Bai (1):
      arm64: dts: imx8dxl-ss-ddr: Add DB (system interconnects) pmu support for i.MX8DXL

Joakim Zhang (1):
      perf/imx_ddr: Add support for PMU in DB (system interconnects)

 .../devicetree/bindings/perf/fsl-imx-ddr.yaml      | 26 +++++++
 arch/arm64/boot/dts/freescale/imx8-ss-ddr.dtsi     |  2 +-
 arch/arm64/boot/dts/freescale/imx8dxl-ss-ddr.dtsi  | 30 +++++++
 arch/arm64/boot/dts/freescale/imx8qm-ss-ddr.dtsi   | 19 +++++
 arch/arm64/boot/dts/freescale/imx8qm.dtsi          |  2 +
 drivers/perf/fsl_imx8_ddr_perf.c                   | 91 ++++++++++++++++++----
 6 files changed, 152 insertions(+), 18 deletions(-)
---
base-commit: c31b21db1c04ba719c3889a57873f0f7eff54670
change-id: 20251022-qm_dts-60145802537d

Best regards,
--
Frank Li <Frank.Li@....com>