diff mbox series

[v2,1/9] dt-bindings: serial: add documentation for Bouffalolab UART Driver

Message ID 20221127132448.4034-2-jszhang@kernel.org (mailing list archive)
State Changes Requested
Headers show
Series riscv: add Bouffalolab bl808 support | expand

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Commit Message

Jisheng Zhang Nov. 27, 2022, 1:24 p.m. UTC
Add bindings doc for Bouffalolab UART Driver

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 .../bindings/serial/bouffalolab,uart.yaml     | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml

Comments

Samuel Holland Nov. 30, 2022, 5:45 a.m. UTC | #1
On 11/27/22 07:24, Jisheng Zhang wrote:
> Add bindings doc for Bouffalolab UART Driver
> 
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> ---
>  .../bindings/serial/bouffalolab,uart.yaml     | 47 +++++++++++++++++++
>  1 file changed, 47 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml
> 
> diff --git a/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml b/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml
> new file mode 100644
> index 000000000000..a8293444ca31
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml
> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2022 Jisheng Zhang <jszhang@kernel.org>
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/serial/bouffalolab,uart.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Bouffalolab UART Controller
> +
> +maintainers:
> +  - Jisheng Zhang <jszhang@kernel.org>
> +
> +allOf:
> +  - $ref: serial.yaml#
> +
> +properties:
> +  compatible:
> +    const: bouffalolab,bl808-uart
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1

There is also a reset control for this peripheral (in the GLB registers
at GLB_SWRST_S1A0).

And since you set additionalProperties, I believe you need to add the
DMA channel properties here as well.

Regards,
Samuel

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    uart0: serial@30002000 {
> +        compatible = "bouffalolab,bl808-uart";
> +        reg = <0x30002000 0x1000>;
> +        interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&xtal>;
> +    };
> +...
Krzysztof Kozlowski Dec. 1, 2022, 11:02 a.m. UTC | #2
On 27/11/2022 14:24, Jisheng Zhang wrote:
> Add bindings doc for Bouffalolab UART Driver
> 
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> ---
>  .../bindings/serial/bouffalolab,uart.yaml     | 47 +++++++++++++++++++
>  1 file changed, 47 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml
> 
> diff --git a/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml b/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml
> new file mode 100644
> index 000000000000..a8293444ca31
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml

Name the file matching compatible, so bouffalolab,bl808-uart.yaml

> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2022 Jisheng Zhang <jszhang@kernel.org>
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/serial/bouffalolab,uart.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Bouffalolab UART Controller
> +
> +maintainers:
> +  - Jisheng Zhang <jszhang@kernel.org>
> +
> +allOf:
> +  - $ref: serial.yaml#
> +
> +properties:
> +  compatible:
> +    const: bouffalolab,bl808-uart

Rob's comments from v1 are applicable. Either fix or respond to them.

> +
> +  reg:
> +    maxItems: 1
> +

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml b/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml
new file mode 100644
index 000000000000..a8293444ca31
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/bouffalolab,uart.yaml
@@ -0,0 +1,47 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 Jisheng Zhang <jszhang@kernel.org>
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/bouffalolab,uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bouffalolab UART Controller
+
+maintainers:
+  - Jisheng Zhang <jszhang@kernel.org>
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    const: bouffalolab,bl808-uart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    uart0: serial@30002000 {
+        compatible = "bouffalolab,bl808-uart";
+        reg = <0x30002000 0x1000>;
+        interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&xtal>;
+    };
+...