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[v3,1/4] dt-bindings: mtd: rzn1: Describe Renesas RZ/N1 NAND controller

Message ID 20211209143228.525234-2-miquel.raynal@bootlin.com (mailing list archive)
State New, archived
Headers show
Series Renesas RZ/N1 NAND controller support | expand

Commit Message

Miquel Raynal Dec. 9, 2021, 2:32 p.m. UTC
Add a Yaml description for this Renesas NAND controller bindings.

Provide a family-specific "rzn1" compatible and a more specific
"r9a06g032" one.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 .../mtd/renesas,rzn1-nand-controller.yaml     | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml

Comments

Rob Herring (Arm) Dec. 14, 2021, 7:34 p.m. UTC | #1
On Thu, Dec 09, 2021 at 03:32:25PM +0100, Miquel Raynal wrote:
> Add a Yaml description for this Renesas NAND controller bindings.
> 
> Provide a family-specific "rzn1" compatible and a more specific
> "r9a06g032" one.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
>  .../mtd/renesas,rzn1-nand-controller.yaml     | 64 +++++++++++++++++++
>  1 file changed, 64 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml b/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
> new file mode 100644
> index 000000000000..cc6a358e33d1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
> @@ -0,0 +1,64 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/renesas,rzn1-nand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/N1x NAND flash controller device tree bindings
> +
> +maintainers:
> +  - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +allOf:
> +  - $ref: "nand-controller.yaml"
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - renesas,r9a06g032-nand-controller
> +      - const: renesas,rzn1-nand-controller
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: APB host controller clock
> +      - description: External NAND bus clock
> +
> +  clock-names:
> +    items:
> +      - const: nand_hclk
> +      - const: nand_eclk

'nand_' is redundant.

> +
> +  "#address-cells": true
> +  "#size-cells": true
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - interrupts
> +
> +additionalProperties: true

unevaluatedProperties: false

> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/r9a06g032-sysctrl.h>
> +
> +    nand-controller@40102000 {
> +        compatible = "renesas,r9a06g032-nand-controller",
> +                     "renesas,rzn1-nand-controller";
> +        reg = <0x40102000 0x2000>;
> +        interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&sysctrl R9A06G032_HCLK_NAND>, <&sysctrl R9A06G032_CLK_NAND>;
> +        clock-names = "nand_hclk", "nand_eclk";
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +    };
> -- 
> 2.27.0
> 
>
Miquel Raynal Dec. 15, 2021, 3:36 p.m. UTC | #2
Hi Rob,

> > +  clock-names:
> > +    items:
> > +      - const: nand_hclk
> > +      - const: nand_eclk  
> 
> 'nand_' is redundant.

Actually the nand_ prefix was voluntary to be consistent with the
specification which called these two clocks NAND_HCLK and NAND_EXLK.
But whatever, I'll change the names.

> > +  "#address-cells": true
> > +  "#size-cells": true
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - clocks
> > +  - clock-names
> > +  - interrupts
> > +
> > +additionalProperties: true  
> 
> unevaluatedProperties: false

Not sure why I proposed this property in the first place. I'll correct.

Thanks,
Miquèl
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml b/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
new file mode 100644
index 000000000000..cc6a358e33d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/renesas,rzn1-nand-controller.yaml
@@ -0,0 +1,64 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/renesas,rzn1-nand-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/N1x NAND flash controller device tree bindings
+
+maintainers:
+  - Miquel Raynal <miquel.raynal@bootlin.com>
+
+allOf:
+  - $ref: "nand-controller.yaml"
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - renesas,r9a06g032-nand-controller
+      - const: renesas,rzn1-nand-controller
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: APB host controller clock
+      - description: External NAND bus clock
+
+  clock-names:
+    items:
+      - const: nand_hclk
+      - const: nand_eclk
+
+  "#address-cells": true
+  "#size-cells": true
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: true
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/r9a06g032-sysctrl.h>
+
+    nand-controller@40102000 {
+        compatible = "renesas,r9a06g032-nand-controller",
+                     "renesas,rzn1-nand-controller";
+        reg = <0x40102000 0x2000>;
+        interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&sysctrl R9A06G032_HCLK_NAND>, <&sysctrl R9A06G032_CLK_NAND>;
+        clock-names = "nand_hclk", "nand_eclk";
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };