linux-kernel - [PATCH 0/4] dt-bindings: memory: Describing LPDDR topology

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Date:   Tue, 30 Aug 2022 18:33:55 -0700
From:   Julius Werner <jwerner@...omium.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Dmitry Osipenko <digetx@...il.com>,
        Doug Anderson <dianders@...omium.org>,
        Jian-Jia Su <jjsu@...gle.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Julius Werner <jwerner@...omium.org>
Subject: [PATCH 0/4] dt-bindings: memory: Describing LPDDR topology

This patch series implements a proposal previously discussed on the
mailing list under the topic `[RFC] Correct memory layout reporting for
"jedec,lpddr2" and related bindings`. It adds a new jedec,lpddr-channel
binding which should be used to group nodes of the existing jedec,lpddr
bindings to describe their relative topology on the system and the
amount of chips wired in parallel on each channel, as well as their
different ranks. This also adds bindings for LPDDR4 and LPDDR5 memory
types and deduplicates some common schema elements between different
LPDDR types.

Julius Werner (4):
  dt-bindings: memory: Factor out common properties of LPDDR bindings
  dt-bindings: memory: Add numeric LPDDR compatible string variant
  dt-bindings: memory: Add jedec,lpddr4 and jedec,lpddr5 bindings
  dt-bindings: memory: Add jedec,lpddrX-channel binding

 .../ddr/jedec,lpddr-channel.yaml              | 116 ++++++++++++++++++
 .../ddr/jedec,lpddr-props.yaml                |  82 +++++++++++++
 .../memory-controllers/ddr/jedec,lpddr2.yaml  |  48 ++------
 .../memory-controllers/ddr/jedec,lpddr3.yaml  |  51 ++------
 .../memory-controllers/ddr/jedec,lpddr4.yaml  |  36 ++++++
 .../memory-controllers/ddr/jedec,lpddr5.yaml  |  48 ++++++++
 6 files changed, 303 insertions(+), 78 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-channel.yaml
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr4.yaml
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr5.yaml

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2.31.0