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[4/9] dt-bindings: crypto: add fsl-sec4-snvs DT schema

Message ID 20230301015702.3388458-5-peng.fan@oss.nxp.com
State New
Headers show
Series dt-bindings: crypto: convert fsl-sec4 to DT schema | expand

Commit Message

Peng Fan (OSS) March 1, 2023, 1:56 a.m. UTC
From: Peng Fan <peng.fan@nxp.com>

Convert fsl-sec4.txt SNVS RTC and PowerKey to DT schema

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 .../bindings/crypto/fsl-sec4-snvs.yaml        | 153 ++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/fsl-sec4-snvs.yaml

Comments

Krzysztof Kozlowski March 3, 2023, 9:58 a.m. UTC | #1
On 01/03/2023 02:56, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> Convert fsl-sec4.txt SNVS RTC and PowerKey to DT schema

This is a mess. Subject says add, commit msg says convert and body does
what?

> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
>  .../bindings/crypto/fsl-sec4-snvs.yaml        | 153 ++++++++++++++++++
>  1 file changed, 153 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/crypto/fsl-sec4-snvs.yaml
> 
> diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4-snvs.yaml b/Documentation/devicetree/bindings/crypto/fsl-sec4-snvs.yaml
> new file mode 100644
> index 000000000000..633e70f9b303
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/crypto/fsl-sec4-snvs.yaml

Filename matching compatibles.

> @@ -0,0 +1,153 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/crypto/fsl-sec4-snvs.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NXP SEC4 SNVS Binding

Drop Binding.


> +
> +description:
> +  CONTENTS
> +    -Secure Non-Volatile Storage (SNVS) Node
> +    -Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node

OK, this is some copy-paste from some poor other code. Please fix all
your bindings like I mentioned in previous emails.

> +
> +  Node defines address range and the associated interrupt for the SNVS
> +  function.  This function monitors security state information & reports
> +  security violations. This also included rtc, system power off and ON/OFF
> +  key.
> +
> +  For more information on SEC4, ref fsl-sec4-crypto.yaml
> +
> +maintainers:
> +  - Peng Fan <peng.fan@nxp.com>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: fsl,sec-v4.0-mon
> +          - const: syscon
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 1
> +
> +  ranges:
> +    description:
> +      A standard property. Specifies the physical address range of the SNVS

So the rest are non-standard properties?


> +      register space.  A triplet that includes the child address, parent
> +      address, & length.
> +
> +  interrupts:
> +    description:
> +      Specifies the interrupts generated by this device.  The value of the
> +      interrupts property consists of one interrupt specifier. The format
> +      of the specifier is defined by the binding document describing the
> +      node's interrupt parent.

Please point me to any useful information in this description. Anything
useful. All interrupts are generated from the devices, aren't they?

> +    minItems: 1
> +    maxItems: 2

No, you need to describe the items instead.

> +

(...)

> +    sec_mon: sec_mon@314000 {

Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

No underscores in node names.

> +        compatible = "fsl,sec-v4.0-mon", "syscon";
> +        reg = <0x314000 0x1000>;
> +
> +        snvs-rtc-lp {

Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


> +            compatible = "fsl,sec-v4.0-mon-rtc-lp";
> +            regmap = <&sec_mon>;
> +            offset = <0x34>;
> +            interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
> +                         <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&clks IMX7D_SNVS_CLK>;
> +            clock-names = "snvs-rtc";
> +        };
> +
> +        snvs-powerkey {

Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation



Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4-snvs.yaml b/Documentation/devicetree/bindings/crypto/fsl-sec4-snvs.yaml
new file mode 100644
index 000000000000..633e70f9b303
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/fsl-sec4-snvs.yaml
@@ -0,0 +1,153 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/fsl-sec4-snvs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP SEC4 SNVS Binding
+
+description:
+  CONTENTS
+    -Secure Non-Volatile Storage (SNVS) Node
+    -Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node
+
+  Node defines address range and the associated interrupt for the SNVS
+  function.  This function monitors security state information & reports
+  security violations. This also included rtc, system power off and ON/OFF
+  key.
+
+  For more information on SEC4, ref fsl-sec4-crypto.yaml
+
+maintainers:
+  - Peng Fan <peng.fan@nxp.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: fsl,sec-v4.0-mon
+          - const: syscon
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  ranges:
+    description:
+      A standard property. Specifies the physical address range of the SNVS
+      register space.  A triplet that includes the child address, parent
+      address, & length.
+
+  interrupts:
+    description:
+      Specifies the interrupts generated by this device.  The value of the
+      interrupts property consists of one interrupt specifier. The format
+      of the specifier is defined by the binding document describing the
+      node's interrupt parent.
+    minItems: 1
+    maxItems: 2
+
+  snvs-rtc-lp:
+    type: object
+    description:
+      Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node. A SNVS
+      child node that defines SNVS LP RTC.
+
+    properties:
+      compatible:
+        enum:
+          - fsl,sec-v4.0-mon-rtc-lp
+
+      interrupts:
+        minItems: 1
+        maxItems: 2
+
+      regmap:
+        description: This is phandle to the register map node.
+        $ref: /schemas/types.yaml#/definitions/phandle
+
+      offset:
+        description: LP register offset. default it is 0x34.
+        $ref: /schemas/types.yaml#/definitions/uint32
+
+      clocks:
+        maxItems: 1
+
+      clock-names:
+        items:
+          - const: snvs-rtc
+
+    required:
+      - compatible
+      - interrupts
+      - regmap
+
+  snvs-powerkey:
+    type: object
+    description:
+      The snvs-pwrkey is designed to enable POWER key function which
+      controlled by SNVS ONOFF, the driver can report the status of POWER
+      key and wakeup system if pressed after system suspend.
+
+    properties:
+      compatible:
+        enum:
+          - fsl,sec-v4.0-pwrkey
+
+      interrupts:
+        description: The SNVS ON/OFF interrupt number to the CPU(s).
+        maxItems: 1
+
+      linux,keycode:
+        description: Keycode to emit, KEY_POWER by default.
+        $ref: /schemas/types.yaml#/definitions/int32
+
+      regmap:
+        description: This is phandle to the register map node.
+        $ref: /schemas/types.yaml#/definitions/phandle
+
+      wakeup-source:
+        description: Button can wake-up the system.
+        type: boolean
+
+    required:
+      - compatible
+      - interrupts
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/imx7d-clock.h>
+    sec_mon: sec_mon@314000 {
+        compatible = "fsl,sec-v4.0-mon", "syscon";
+        reg = <0x314000 0x1000>;
+
+        snvs-rtc-lp {
+            compatible = "fsl,sec-v4.0-mon-rtc-lp";
+            regmap = <&sec_mon>;
+            offset = <0x34>;
+            interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&clks IMX7D_SNVS_CLK>;
+            clock-names = "snvs-rtc";
+        };
+
+        snvs-powerkey {
+            compatible = "fsl,sec-v4.0-pwrkey";
+            regmap = <&sec_mon>;
+            interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+            linux,keycode = <116>; /* KEY_POWER */
+            wakeup-source;
+        };
+    };