[PATCH v6 0/3] remoteproc: imx_rpoc: use memory-region-names to avoid hidden ABI.

[Frank . Li]

The driver currently derives the memory region type from the referenced
memory node name, creating a hidden DT ABI.

rsc_table: rsc-table@90000000
           ^^^^^^^^
{	ret  = <0x90000000>;
	no-map;
}

m4 {
	...
	memory-region = <&rsc_table>;
}

Current require node name have to be rsc-table, but no any binding doc
to restrict it.

Since memory node names are not constrained by the binding, incorrect names
can silently pass DT validation, as seen in examples using "vdevbuffer"
instead of "vdev0buffer" ([1] and [2]).

Add optional memory-region-names property to define such ABI. To keep
back compactiblity, use "optional".

Link: https://lore.kernel.org/imx/a3602ef8-2b77-4cc3-adef-2c4cba08a5d9@xxxxxxxxxxxx/ [1]
Link: https://lore.kernel.org/imx/alexXTYQHUs76J7v@SMW015318/T/#mb9dc709ff3adc24d9db6d30c973f37b580f6f1f9 [2]

Prevous version
https://lore.kernel.org/imx/ail0sH1UhnQBPRkr@SMW015318/

---
Changes in v6:
- collect rob's review-by tags for binding
- move imx_rproc_rmem_to_resource to c file
- dts move related memory region node into overlay file
- Link to v5: https://patch.msgid.link/20261015-memory-region-name-v5-0-abc358b39a96@xxxxxxx

Changes in v5:
- fix binding region-memory-names's pattern
- add vdev1vring0 and vdev1vring1 at dts
- collect pan peng's review by tags
- Link to v4: https://patch.msgid.link/20260917-memory-region-name-v4-0-260755920ebf@xxxxxxx

Change in v3
- rephrase commit message and cover letter to correct descritpion and
reasons.

To: Bjorn Andersson <andersson@xxxxxxxxxx>
To: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
To: Rob Herring <robh@xxxxxxxxxx>
To: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
To: Conor Dooley <conor+dt@xxxxxxxxxx>
To: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
To: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
To: Fabio Estevam <festevam@xxxxxxxxx>
To: Peng Fan <peng.fan@xxxxxxx>
Cc: linux-remoteproc@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: imx@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: Laurentiu Mihalcea <laurentiu.mihalcea@xxxxxxx>
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>

---
Laurentiu Mihalcea (3):
      dt-bindings: remoteproc: imx_rproc: document memory-region-names to avoid hidden ABI
      remoteproc: imx_rpoc: use memory-region-names to avoid hidden ABI
      arm64: dts: freescale: add DT overlay for MX95-15x15-FRDM RPMSG usage

 .../bindings/remoteproc/fsl,imx-rproc.yaml         | 11 +++
 arch/arm64/boot/dts/freescale/Makefile             |  3 +
 .../boot/dts/freescale/imx95-15x15-frdm-rpmsg.dtso | 81 ++++++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx95-15x15-frdm.dts | 31 ---------
 drivers/remoteproc/imx_rproc.c                     | 32 ++++++++-
 5 files changed, 125 insertions(+), 33 deletions(-)
---
base-commit: d419d682257d813f6cb7a28e42b35d0edf4ad038
change-id: 20260915-memory-region-name-f950eea2b78d

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