[PATCH v2 3/3] dt-bindings: arm: mediatek: infracfg: Convert to DT schema

Yassine Oudjana posted 3 patches 2 years, 5 months ago
[PATCH v2 3/3] dt-bindings: arm: mediatek: infracfg: Convert to DT schema
Posted by Yassine Oudjana 2 years, 5 months ago
From: Yassine Oudjana <y.oudjana@protonmail.com>

Convert infracfg bindings to DT schema format. Not all drivers
currently implement resets, so #reset-cells is made a required
property only for those that do. Using power-controller in the
example node name makes #power-domain-cells required causing
a dt_binding_check error. To solve this, the node is renamed to
syscon@10001000.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
---
 .../arm/mediatek/mediatek,infracfg.txt        | 42 ----------
 .../arm/mediatek/mediatek,infracfg.yaml       | 81 +++++++++++++++++++
 2 files changed, 81 insertions(+), 42 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
 create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml

diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
deleted file mode 100644
index f66bd720571d..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
+++ /dev/null
@@ -1,42 +0,0 @@
-Mediatek infracfg controller
-============================
-
-The Mediatek infracfg controller provides various clocks and reset
-outputs to the system.
-
-Required Properties:
-
-- compatible: Should be one of:
-	- "mediatek,mt2701-infracfg", "syscon"
-	- "mediatek,mt2712-infracfg", "syscon"
-	- "mediatek,mt6765-infracfg", "syscon"
-	- "mediatek,mt6779-infracfg_ao", "syscon"
-	- "mediatek,mt6797-infracfg", "syscon"
-	- "mediatek,mt7622-infracfg", "syscon"
-	- "mediatek,mt7623-infracfg", "mediatek,mt2701-infracfg", "syscon"
-	- "mediatek,mt7629-infracfg", "syscon"
-	- "mediatek,mt7986-infracfg", "syscon"
-	- "mediatek,mt8135-infracfg", "syscon"
-	- "mediatek,mt8167-infracfg", "syscon"
-	- "mediatek,mt8173-infracfg", "syscon"
-	- "mediatek,mt8183-infracfg", "syscon"
-	- "mediatek,mt8516-infracfg", "syscon"
-- #clock-cells: Must be 1
-- #reset-cells: Must be 1
-
-The infracfg controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-Also it uses the common reset controller binding from
-Documentation/devicetree/bindings/reset/reset.txt.
-The available reset outputs are defined in
-dt-bindings/reset/mt*-resets.h
-
-Example:
-
-infracfg: power-controller@10001000 {
-	compatible = "mediatek,mt8173-infracfg", "syscon";
-	reg = <0 0x10001000 0 0x1000>;
-	#clock-cells = <1>;
-	#reset-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
new file mode 100644
index 000000000000..8681b785ed6d
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,infracfg.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediaTek Infrastructure System Configuration Controller
+
+maintainers:
+  - Matthias Brugger <matthias.bgg@gmail.com>
+
+description:
+  The Mediatek infracfg controller provides various clocks and reset outputs
+  to the system. The clock values can be found in <dt-bindings/clock/mt*-clk.h>,
+  and reset values in <dt-bindings/reset/mt*-reset.h> and
+  <dt-bindings/reset/mt*-resets.h>.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - mediatek,mt2701-infracfg
+              - mediatek,mt2712-infracfg
+              - mediatek,mt6765-infracfg
+              - mediatek,mt6779-infracfg_ao
+              - mediatek,mt6797-infracfg
+              - mediatek,mt7622-infracfg
+              - mediatek,mt7629-infracfg
+              - mediatek,mt7986-infracfg
+              - mediatek,mt8135-infracfg
+              - mediatek,mt8167-infracfg
+              - mediatek,mt8173-infracfg
+              - mediatek,mt8183-infracfg
+              - mediatek,mt8516-infracfg
+          - const: syscon
+      - items:
+          - const: mediatek,mt7623-infracfg
+          - const: mediatek,mt2701-infracfg
+          - const: syscon
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - mediatek,mt2701-infracfg
+          - mediatek,mt2712-infracfg
+          - mediatek,mt7622-infracfg
+          - mediatek,mt7986-infracfg
+          - mediatek,mt8135-infracfg
+          - mediatek,mt8173-infracfg
+          - mediatek,mt8183-infracfg
+then:
+  required:
+    - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    infracfg: clock-controller@10001000 {
+        compatible = "mediatek,mt8173-infracfg", "syscon";
+        reg = <0x10001000 0x1000>;
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };
-- 
2.36.0
Re: [PATCH v2 3/3] dt-bindings: arm: mediatek: infracfg: Convert to DT schema
Posted by Rob Herring 2 years, 4 months ago
On Sun, 24 Apr 2022 12:46:47 +0400, Yassine Oudjana wrote:
> From: Yassine Oudjana <y.oudjana@protonmail.com>
> 
> Convert infracfg bindings to DT schema format. Not all drivers
> currently implement resets, so #reset-cells is made a required
> property only for those that do. Using power-controller in the
> example node name makes #power-domain-cells required causing
> a dt_binding_check error. To solve this, the node is renamed to
> syscon@10001000.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
> ---
>  .../arm/mediatek/mediatek,infracfg.txt        | 42 ----------
>  .../arm/mediatek/mediatek,infracfg.yaml       | 81 +++++++++++++++++++
>  2 files changed, 81 insertions(+), 42 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
>  create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
> 

Applied, thanks!
Re: [PATCH v2 3/3] dt-bindings: arm: mediatek: infracfg: Convert to DT schema
Posted by Krzysztof Kozlowski 2 years, 5 months ago
On 24/04/2022 10:46, Yassine Oudjana wrote:
> From: Yassine Oudjana <y.oudjana@protonmail.com>
> 
> Convert infracfg bindings to DT schema format. Not all drivers
> currently implement resets, so #reset-cells is made a required
> property only for those that do. Using power-controller in the
> example node name makes #power-domain-cells required causing
> a dt_binding_check error. To solve this, the node is renamed to
> syscon@10001000.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
> ---
>  .../arm/mediatek/mediatek,infracfg.txt        | 42 ----------
>  .../arm/mediatek/mediatek,infracfg.yaml       | 81 +++++++++++++++++++
>  2 files changed, 81 insertions(+), 42 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
>  create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
> 
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


Best regards,
Krzysztof
Re: [PATCH v2 3/3] dt-bindings: arm: mediatek: infracfg: Convert to DT schema
Posted by Rob Herring 2 years, 5 months ago
On Sun, 24 Apr 2022 12:46:47 +0400, Yassine Oudjana wrote:
> From: Yassine Oudjana <y.oudjana@protonmail.com>
> 
> Convert infracfg bindings to DT schema format. Not all drivers
> currently implement resets, so #reset-cells is made a required
> property only for those that do. Using power-controller in the
> example node name makes #power-domain-cells required causing
> a dt_binding_check error. To solve this, the node is renamed to
> syscon@10001000.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
> ---
>  .../arm/mediatek/mediatek,infracfg.txt        | 42 ----------
>  .../arm/mediatek/mediatek,infracfg.yaml       | 81 +++++++++++++++++++
>  2 files changed, 81 insertions(+), 42 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
>  create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
> 

Running 'make dtbs_check' with the schema in this patch gives the
following warnings. Consider if they are expected or the schema is
incorrect. These may not be new warnings.

Note that it is not yet a requirement to have 0 warnings for dtbs_check.
This will change in the future.

Full log is available here: https://patchwork.ozlabs.org/patch/


infracfg@10001000: '#reset-cells' is a required property
	arch/arm64/boot/dts/mediatek/mt7986a-rfb.dtb
	arch/arm64/boot/dts/mediatek/mt7986b-rfb.dtb

syscon@10001000: '#reset-cells' is a required property
	arch/arm64/boot/dts/mediatek/mt2712-evb.dtb