[PATCH 0/3] Fix a couple of missing unevaluated properties

[PATCH 0/3] Fix a couple of missing unevaluated properties

[Miquel Raynal]

As discussed with Krzysztof and Chris, it seems like each NAND
controller binding should actually explicitely list all the allowed
properties in a schema and use "unevaluatedProperties: false" in both
the NAND controller and the NAND chip sections. While this restriction
always applied on the controller side, this was not enforced on the
chips side AFAIR.

Link: https://lore.kernel.org/all/a23dd485-a3d9-e31f-be3e-0ab293fcfc4a@linaro.org/

While converting Marvell controller bindings, Chris explicitely pointed
similar bindings which would also trigger errors when using
"unevaluatedProperties: false" because of the reg/partitions/etc
properties not being described. Here is an attempt at making these more
precise and robust.

These change made me realize the qcom,boot-partition property
description was broken, so here is a fix for it.

Thanks,
Miquèl

Miquel Raynal (3):
  dt-bindings: mtd: qcom: Fix a property position
  dt-bindings: mtd: qcom: Prevent NAND chip unevaluated properties
  dt-bindings: mtd: ingenic: Prevent NAND chip unevaluated properties

 .../devicetree/bindings/mtd/ingenic,nand.yaml | 11 +++++
 .../devicetree/bindings/mtd/qcom,nandc.yaml   | 47 ++++++++++++-------
 2 files changed, 42 insertions(+), 16 deletions(-)

-- 
2.34.1


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[PATCH 1/3] dt-bindings: mtd: qcom: Fix a property position

[Miquel Raynal]

qcom,boot-partitions is a NAND chip property, not a NAND controller
property. Move the description of the property into the NAND chip
section and just enable the property in the if/else block.

Fixes: 5278cc93a97f ("dt-bindings: mtd: qcom_nandc: document qcom,boot-partitions binding")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 .../devicetree/bindings/mtd/qcom,nandc.yaml   | 41 +++++++++++--------
 1 file changed, 25 insertions(+), 16 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
index 07024ee45951..7217d8a64d14 100644
--- a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
+++ b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
@@ -45,6 +45,22 @@ patternProperties:
         enum:
           - 512
 
+      qcom,boot-partitions:
+        $ref: /schemas/types.yaml#/definitions/uint32-matrix
+        items:
+          items:
+            - description: offset
+            - description: size
+        description:
+          Boot partition use a different layout where the 4 bytes of spare
+          data are not protected by ECC. Use this to declare these special
+          partitions by defining first the offset and then the size.
+
+          It's in the form of <offset1 size1 offset2 size2 offset3 ...>
+          and should be declared in ascending order.
+
+          Refer to the ipq8064 example on how to use this special binding.
+
 allOf:
   - $ref: "nand-controller.yaml#"
 
@@ -107,22 +123,15 @@ allOf:
               - qcom,ipq806x-nand
 
     then:
-      properties:
-        qcom,boot-partitions:
-          $ref: /schemas/types.yaml#/definitions/uint32-matrix
-          items:
-            items:
-              - description: offset
-              - description: size
-          description:
-            Boot partition use a different layout where the 4 bytes of spare
-            data are not protected by ECC. Use this to declare these special
-            partitions by defining first the offset and then the size.
-
-            It's in the form of <offset1 size1 offset2 size2 offset3 ...>
-            and should be declared in ascending order.
-
-            Refer to the ipq8064 example on how to use this special binding.
+      patternProperties:
+        "^nand@[a-f0-9]$":
+          properties:
+            qcom,boot-partitions: true
+    else:
+      patternProperties:
+        "^nand@[a-f0-9]$":
+          properties:
+            qcom,boot-partitions: false
 
 required:
   - compatible
-- 
2.34.1


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[PATCH 2/3] dt-bindings: mtd: qcom: Prevent NAND chip unevaluated properties

[Miquel Raynal]

List all the possible properties in the NAND chip as per the example and
set unevaluatedProperties to false in the NAND chip section.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 Documentation/devicetree/bindings/mtd/qcom,nandc.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
index 7217d8a64d14..4ed14cd97cb8 100644
--- a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
+++ b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
@@ -35,6 +35,8 @@ patternProperties:
   "^nand@[a-f0-9]$":
     type: object
     properties:
+      reg: true
+
       nand-bus-width:
         const: 8
 
@@ -61,6 +63,10 @@ patternProperties:
 
           Refer to the ipq8064 example on how to use this special binding.
 
+      partitions: true
+
+    unevaluatedProperties: false
+
 allOf:
   - $ref: "nand-controller.yaml#"
 
-- 
2.34.1


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[PATCH 3/3] dt-bindings: mtd: ingenic: Prevent NAND chip unevaluated properties

[Miquel Raynal]

List all the possible properties in the NAND chip as per the example and
set unevaluatedProperties to false in the NAND chip section.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 .../devicetree/bindings/mtd/ingenic,nand.yaml         | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/ingenic,nand.yaml b/Documentation/devicetree/bindings/mtd/ingenic,nand.yaml
index a7bdb5d3675c..facb44ebcaa6 100644
--- a/Documentation/devicetree/bindings/mtd/ingenic,nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/ingenic,nand.yaml
@@ -40,6 +40,8 @@ patternProperties:
   "^nand@[a-f0-9]$":
     type: object
     properties:
+      reg: true
+
       rb-gpios:
         description: GPIO specifier for the busy pin.
         maxItems: 1
@@ -48,6 +50,15 @@ patternProperties:
         description: GPIO specifier for the write-protect pin.
         maxItems: 1
 
+      nand-ecc-step-size: true
+      nand-ecc-strength: true
+      nand-ecc-mode: true
+      nand-on-flash-bbt: true
+
+      partitions: true
+
+    unevaluatedProperties: false
+
 required:
   - compatible
   - reg
-- 
2.34.1


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Re: [PATCH 0/3] Fix a couple of missing unevaluated properties

[Miquel Raynal]

Hello,

miquel.raynal@bootlin.com wrote on Tue,  6 Jun 2023 12:30:54 +0200:

> As discussed with Krzysztof and Chris, it seems like each NAND
> controller binding should actually explicitely list all the allowed
> properties in a schema and use "unevaluatedProperties: false" in both
> the NAND controller and the NAND chip sections. While this restriction
> always applied on the controller side, this was not enforced on the
> chips side AFAIR.
> 
> Link: https://lore.kernel.org/all/a23dd485-a3d9-e31f-be3e-0ab293fcfc4a@linaro.org/

The discussion pointed above has lead to another observation which also
needs to be fixed in this series. A v2 is coming soon.

> While converting Marvell controller bindings, Chris explicitely pointed
> similar bindings which would also trigger errors when using
> "unevaluatedProperties: false" because of the reg/partitions/etc
> properties not being described. Here is an attempt at making these more
> precise and robust.
> 
> These change made me realize the qcom,boot-partition property
> description was broken, so here is a fix for it.
> 
> Thanks,
> Miquèl
> 
> Miquel Raynal (3):
>   dt-bindings: mtd: qcom: Fix a property position
>   dt-bindings: mtd: qcom: Prevent NAND chip unevaluated properties
>   dt-bindings: mtd: ingenic: Prevent NAND chip unevaluated properties
> 
>  .../devicetree/bindings/mtd/ingenic,nand.yaml | 11 +++++
>  .../devicetree/bindings/mtd/qcom,nandc.yaml   | 47 ++++++++++++-------
>  2 files changed, 42 insertions(+), 16 deletions(-)
> 


Thanks,
Miquèl

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