linux-kernel - [PATCH v3 0/3] Freescale Enhanced Local Bus Controller (eLBC) binding YAML conversion

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Message-Id: <20250226-ppcyaml-elbc-v3-0-a90ed71da838@posteo.net>
Date: Wed, 26 Feb 2025 18:01:39 +0100
From: J. Neuschäfer via B4 Relay <devnull+j.ne.posteo.net@...nel.org>
To: Krzysztof Kozlowski <krzk@...nel.org>, Rob Herring <robh@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Miquel Raynal <miquel.raynal@...tlin.com>, 
 Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Crystal Wood <oss@...error.net>, 
 Madhavan Srinivasan <maddy@...ux.ibm.com>, 
 Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, 
 Christophe Leroy <christophe.leroy@...roup.eu>, 
 Naveen N Rao <naveen@...nel.org>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-mtd@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org, 
 J. Neuschäfer <j.ne@...teo.net>, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH v3 0/3] Freescale Enhanced Local Bus Controller (eLBC)
 binding YAML conversion

This series converts the fsl,elbc binding to YAML and adds new bindings
for related devices (particular kinds of chip on the eLBC).

For readability, the existing unit address syntax of <cs>,<offset>
(e.g. nand@1,0) is kept. This results in a few dtc validation warnings,
when combined with other choices in this patchset:

- For compatibility with existing kernels which don't explicitly probe
  under an eLBC controller, the "simple-bus" compatible string is kept
  on eLBC controller nodes. The validation logic requires a linear unit
  address, though (e.g. @100000000 instead of @1,0)

- The eLBC NAND flash binding (fsl,elbc-fcm-nand) references
  raw-nand-chip.yaml, which again requires a linear unit address

The patches in this series were previously part of the following series,
which turned out to be too large and unwieldy:
[PATCH v2 00/12] YAML conversion of several Freescale/PowerPC DT bindings
https://lore.kernel.org/lkml/20250207-ppcyaml-v2-0-8137b0c42526@posteo.net/

Changelogs are present in the individual patches.

Signed-off-by: J. Neuschäfer <j.ne@...teo.net>
---
J. Neuschäfer (3):
      dt-bindings: memory-controllers: Add fsl,elbc-gpcm-uio
      dt-bindings: nand: Add fsl,elbc-fcm-nand
      dt-bindings: memory-controllers: Convert fsl,elbc to YAML

 .../memory-controllers/fsl,elbc-gpcm-uio.yaml      |  59 ++++++++
 .../bindings/memory-controllers/fsl,elbc.yaml      | 158 +++++++++++++++++++++
 .../devicetree/bindings/mtd/fsl,elbc-fcm-nand.yaml |  68 +++++++++
 .../devicetree/bindings/powerpc/fsl/lbc.txt        |  43 ------
 4 files changed, 285 insertions(+), 43 deletions(-)
---
base-commit: 2014c95afecee3e76ca4a56956a936e23283f05b
change-id: 20250220-ppcyaml-elbc-bb85941fb250

Best regards,
-- 
J. Neuschäfer <j.ne@...teo.net>