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dt-bindings: memory: lpddr2: Adjust revision ID property to match lpddr3

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Commit 3539a2c6c6 ("dt-bindings: memory: lpddr2: Add revision-id
properties") added the properties `revision-id1` and `revision-id2` to
the "jedec,lpddr2" binding. The "jedec,lpddr3" binding already had a
single array property `revision-id` for the same purpose. For
consistency between related memory types, this patch deprecates the
LPDDR2 properties and instead adds a property in the same style as for
LPDDR3 to that binding.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220224003421.3440124-2-jwerner@chromium.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
This commit is contained in:
Julius Werner 2022-02-23 16:34:19 -08:00 committed by Krzysztof Kozlowski
parent 4e890b2228
commit 80ce91730d
1 changed files with 15 additions and 2 deletions
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17
Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml
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@ -30,12 +30,26 @@ properties:
maximum: 255
description: |
Revision 1 value of SDRAM chip. Obtained from device datasheet.
Property is deprecated, use revision-id instead.
deprecated: true
revision-id2:
$ref: /schemas/types.yaml#/definitions/uint32
maximum: 255
description: |
Revision 2 value of SDRAM chip. Obtained from device datasheet.
Property is deprecated, use revision-id instead.
deprecated: true
revision-id:
$ref: /schemas/types.yaml#/definitions/uint32-array
description: |
Revision IDs read from Mode Register 6 and 7. One byte per uint32 cell (i.e. <MR6 MR7>).
minItems: 2
maxItems: 2
items:
minimum: 0
maximum: 255
density:
$ref: /schemas/types.yaml#/definitions/uint32
@ -162,8 +176,7 @@ examples:
compatible = "elpida,ECB240ABACN", "jedec,lpddr2-s4";
density = <2048>;
io-width = <32>;
revision-id1 = <1>;
revision-id2 = <0>;
revision-id = <1 0>;
tRPab-min-tck = <3>;
tRCD-min-tck = <3>;