diff mbox series

[v2,1/4] dt-bindings: mfd: Add nxp bbnsm

Message ID 20221226023942.1027270-2-ping.bai@nxp.com
State New
Headers show
Series Add nxp bbnsm module support | expand

Commit Message

Jacky Bai Dec. 26, 2022, 2:39 a.m. UTC
Add binding for NXP BBNSM(Battery-Backed Non-Secure Module).

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
---
  - v2 changes:
    - remove the redundant 'bindings' string
    - add ref to rtc.yaml
    - add start-year property
    - rename 'regmap' to 'nxp,bbnsm-regmap' and add description & type define
    - add header files including in the example and correct the indentation
---
 .../devicetree/bindings/mfd/nxp,bbnsm.yaml    | 113 ++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/nxp,bbnsm.yaml

Comments

Jacky Bai Dec. 27, 2022, 1:54 a.m. UTC | #1
Hi Rob,

> Subject: Re: [PATCH v2 1/4] dt-bindings: mfd: Add nxp bbnsm
> 
> On Mon, Dec 26, 2022 at 10:39:39AM +0800, Jacky Bai wrote:
> > Add binding for NXP BBNSM(Battery-Backed Non-Secure Module).
> >
> > Signed-off-by: Jacky Bai <ping.bai@nxp.com>
> > ---
> >   - v2 changes:
> >     - remove the redundant 'bindings' string
> >     - add ref to rtc.yaml
> >     - add start-year property
> >     - rename 'regmap' to 'nxp,bbnsm-regmap' and add description & type
> define
> >     - add header files including in the example and correct the
> > indentation
> > ---
> > +
> > +      nxp,bbnsm-regmap:
> > +        $ref: /schemas/types.yaml#/definitions/phandle
> > +        description:
> > +          phandle of the bbnsm node
> 
> You don't need this now, it's the parent node.

Thx for review. yes, it is redundant, will remove it and refine the code in V3.

BR
> 
> > +
> > +      interrupts:
> > +        maxItems: 1
> > +
> > +      start-year: true
> > +
> > +    required:
> > +      - compatible
> > +      - nxp,bbnsm-regmap
> > +      - interrupts
> > +
> > +    additionalProperties: false
> > +
> > +  pwrkey:
> > +    type: object
> > +    $ref: /schemas/input/input.yaml#
> > +
> > +    properties:
> > +      compatible:
> > +        const: nxp,bbnsm-pwrkey
> > +
> > +      nxp,bbnsm-regmap:
> > +        $ref: /schemas/types.yaml#/definitions/phandle
> > +        description:
> > +          phandle of the bbnsm node
> 
> Same here.
> 
> > +
> > +      interrupts:
> > +        maxItems: 1
> > +
> > +      linux,code: true
> > +
> > +    required:
> > +      - compatible
> > +      - nxp,bbnsm-regmap
> > +      - interrupts
> > +
> > +    additionalProperties: false
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - rtc
> > +  - pwrkey
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/input/linux-event-codes.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +    bbnsm: bbnsm@44440000 {
> > +        compatible = "nxp,bbnsm", "syscon", "simple-mfd";
> > +        reg = <0x44440000 0x10000>;
> > +
> > +        bbnsm_rtc: rtc {
> > +            compatible = "nxp,bbnsm-rtc";
> > +            nxp,bbnsm-regmap = <&bbnsm>;
> > +            interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
> > +        };
> > +
> > +        bbnsm_pwrkey: pwrkey {
> > +            compatible = "nxp,bbnsm-pwrkey";
> > +            nxp,bbnsm-regmap = <&bbnsm>;
> > +            interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
> > +            linux,code = <KEY_POWER>;
> > +        };
> > +    };
> > --
> > 2.37.1
> >
> >
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mfd/nxp,bbnsm.yaml b/Documentation/devicetree/bindings/mfd/nxp,bbnsm.yaml
new file mode 100644
index 000000000000..8d213bce9119
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/nxp,bbnsm.yaml
@@ -0,0 +1,113 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/nxp,bbnsm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP Battery-Backed Non-Secure Module
+
+maintainers:
+  - Jacky Bai <ping.bai@nxp.com>
+
+description: |
+  NXP BBNSM serves as non-volatile logic and storage for the system.
+  it Intergrates RTC & ON/OFF control.
+  The RTC can retain its state and continues counting even when the
+  main chip is power down. A time alarm is generated once the most
+  significant 32 bits of the real-time counter match the value in the
+  Time Alarm register.
+  The ON/OFF logic inside the BBNSM allows for connecting directly to
+  a PMIC or other voltage regulator device. both smart PMIC mode and
+  Dumb PMIC mode supported.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - nxp,bbnsm
+      - const: syscon
+      - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  rtc:
+    type: object
+    $ref: /schemas/rtc/rtc.yaml#
+
+    properties:
+      compatible:
+        const: nxp,bbnsm-rtc
+
+      nxp,bbnsm-regmap:
+        $ref: /schemas/types.yaml#/definitions/phandle
+        description:
+          phandle of the bbnsm node
+
+      interrupts:
+        maxItems: 1
+
+      start-year: true
+
+    required:
+      - compatible
+      - nxp,bbnsm-regmap
+      - interrupts
+
+    additionalProperties: false
+
+  pwrkey:
+    type: object
+    $ref: /schemas/input/input.yaml#
+
+    properties:
+      compatible:
+        const: nxp,bbnsm-pwrkey
+
+      nxp,bbnsm-regmap:
+        $ref: /schemas/types.yaml#/definitions/phandle
+        description:
+          phandle of the bbnsm node
+
+      interrupts:
+        maxItems: 1
+
+      linux,code: true
+
+    required:
+      - compatible
+      - nxp,bbnsm-regmap
+      - interrupts
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - rtc
+  - pwrkey
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/input/linux-event-codes.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    bbnsm: bbnsm@44440000 {
+        compatible = "nxp,bbnsm", "syscon", "simple-mfd";
+        reg = <0x44440000 0x10000>;
+
+        bbnsm_rtc: rtc {
+            compatible = "nxp,bbnsm-rtc";
+            nxp,bbnsm-regmap = <&bbnsm>;
+            interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+        };
+
+        bbnsm_pwrkey: pwrkey {
+            compatible = "nxp,bbnsm-pwrkey";
+            nxp,bbnsm-regmap = <&bbnsm>;
+            interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+            linux,code = <KEY_POWER>;
+        };
+    };