Re: [PATCH v2] dt-bindings: memory-controller: st,stm32: Split off MC properties

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On 9/28/22 19:24, Krzysztof Kozlowski wrote:
On 28/09/2022 19:01, Marek Vasut wrote:
On 9/28/22 09:10, Krzysztof Kozlowski wrote:

Hi,

[...]

diff --git a/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml b/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml
index a1f535cececcc..49243f447eb90 100644
--- a/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml
@@ -49,143 +49,6 @@ patternProperties:
     "^.*@[0-4],[a-f0-9]+$":
       type: object
- properties:
-      reg:
-        description: Bank number, base address and size of the device.
-

To be equivalent (and similar to SPI peripherals and controllers) this
should reference st,stm32-fmc2-ebi-props.yaml as well.

After such reference, you can add here unevaluatedProperties:false
(could be same or new patch as it is not related to actual split).

I don't think I understand. I don't see any ref from the controller node
to its props in various SPI controllers (even if that would make sense):

Because they reference spi peripheral props...


next$ git grep qspi-nor-peripheral-props.yaml
Documentation/devicetree/bindings/spi/cdns,qspi-nor-peripheral-props.yaml:$id:
http://devicetree.org/schemas/spi/cdns,qspi-nor-peripheral-props.yaml#
Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml:  -
$ref: cdns,qspi-nor-peripheral-props.yaml#

No ref to cdns,qspi-nor-peripheral-props.yaml in
Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml

next$ git grep tegra210-quad-peripheral-props
Documentation/devicetree/bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml:$id:
http://devicetree.org/schemas/spi/nvidia,tegra210-quad-peripheral-props.yaml#
Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml:  -
$ref: nvidia,tegra210-quad-peripheral-props.yaml#

No ref to nvidia,tegra210-quad-peripheral-props.yaml in
Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml

All your examples do it - reference spi peripheral props.

As I said, your change is now not equivalent. If any other device
appears in st,stm32-fmc2-ebi, the schema won't be applied.

Let me put it that way: you must have there additionalProperties:false
or unevaluatedProperties:false. Once you add it, you start seeing errors
leading to missing ref.

Is what you are trying to convey that Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml does ref spi-controller.yaml# and that one does patternProperties: ref: spi-peripheral-props.yaml ?

So the fix for V3 should be the following ?

diff --git a/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml b/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml
index 49243f447eb90..0448bd07f4310 100644
--- a/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml
@@ -48,6 +48,7 @@ properties:
 patternProperties:
   "^.*@[0-4],[a-f0-9]+$":
     type: object
+    $ref: st,stm32-fmc2-ebi-props.yaml

 required:
   - "#address-cells"



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