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[v5,2/3] dt-bindings: iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADC

Message ID 20230610202005.1118049-3-bigunclemax@gmail.com (mailing list archive)
State Superseded
Headers show
Series Add support for Allwinner GPADC on D1/T113s/R329/T507 SoCs | expand

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Commit Message

Maksim Kiselev June 10, 2023, 8:19 p.m. UTC
From: Maxim Kiselev <bigunclemax@gmail.com>

Allwinner's D1/T113s/R329/T507 SoCs have a new general purpose ADC.
This ADC is the same for all of this SoCs. The only difference is
the number of available channels.

Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
---
 .../iio/adc/allwinner,sun20i-d1-gpadc.yaml    | 91 +++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml

Comments

Conor Dooley June 10, 2023, 10:17 p.m. UTC | #1
On Sat, Jun 10, 2023 at 11:19:49PM +0300, Maksim Kiselev wrote:
> From: Maxim Kiselev <bigunclemax@gmail.com>
> 
> Allwinner's D1/T113s/R329/T507 SoCs have a new general purpose ADC.
> This ADC is the same for all of this SoCs. The only difference is
> the number of available channels.
> 
> Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>

Looks fine to me chief.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

> ---
>  .../iio/adc/allwinner,sun20i-d1-gpadc.yaml    | 91 +++++++++++++++++++
>  1 file changed, 91 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> new file mode 100644
> index 000000000000..43256ad2b7ed
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> @@ -0,0 +1,91 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/allwinner,sun20i-d1-gpadc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Allwinner D1 General Purpose ADC
> +
> +maintainers:
> +  - Maksim Kiselev <bigunclemax@gmail.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - allwinner,sun20i-d1-gpadc

btw, do you intend coming along later and adding some of the other ones,
or do you only have the d1 yourself?

Cheers,
Conor.
Maksim Kiselev June 11, 2023, 8:01 a.m. UTC | #2
вс, 11 июн. 2023 г. в 01:17, Conor Dooley <conor@kernel.org>:

...

> btw, do you intend coming along later and adding some of the other ones,
> or do you only have the d1 yourself?

At the moment I have only the T113s, which shares most of the periphery and,
accordingly, devicetree with the D1.
Rob Herring (Arm) June 12, 2023, 2:59 p.m. UTC | #3
On Sat, Jun 10, 2023 at 11:19:49PM +0300, Maksim Kiselev wrote:
> From: Maxim Kiselev <bigunclemax@gmail.com>
> 
> Allwinner's D1/T113s/R329/T507 SoCs have a new general purpose ADC.
> This ADC is the same for all of this SoCs. The only difference is
> the number of available channels.
> 
> Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
> ---
>  .../iio/adc/allwinner,sun20i-d1-gpadc.yaml    | 91 +++++++++++++++++++
>  1 file changed, 91 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> new file mode 100644
> index 000000000000..43256ad2b7ed
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> @@ -0,0 +1,91 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/allwinner,sun20i-d1-gpadc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Allwinner D1 General Purpose ADC
> +
> +maintainers:
> +  - Maksim Kiselev <bigunclemax@gmail.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - allwinner,sun20i-d1-gpadc
> +
> +  "#io-channel-cells":
> +    const: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +  clocks:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +patternProperties:
> +  "^channel@([0-15])$":

0-15? That's not how regex's work. Unit-addresses are in hex as well.

"^channel@[0-9a-f]$"

> +    $ref: adc.yaml
> +    type: object
> +    description:
> +      Represents the internal channels of the ADC.
> +
> +    properties:
> +      reg:
> +        items:
> +          minimum: 0
> +          maximum: 15
> +
> +    required:
> +      - reg
> +
> +    unevaluatedProperties: false
> +
> +required:
> +  - "#io-channel-cells"
> +  - clocks
> +  - compatible
> +  - interrupts
> +  - reg
> +  - resets
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/sun20i-d1-ccu.h>
> +    #include <dt-bindings/reset/sun20i-d1-ccu.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    gpadc: adc@2009000 {
> +        compatible = "allwinner,sun20i-d1-gpadc";
> +        reg = <0x2009000 0x1000>;
> +        clocks = <&ccu CLK_BUS_GPADC>;
> +        resets = <&ccu RST_BUS_GPADC>;
> +        interrupts = <73 IRQ_TYPE_LEVEL_HIGH>;
> +        #io-channel-cells = <1>;
> +
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        channel@0 {
> +            reg = <0>;
> +        };
> +
> +        channel@1 {
> +            reg = <1>;
> +        };
> +    };
> +...
> -- 
> 2.39.2
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
new file mode 100644
index 000000000000..43256ad2b7ed
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
@@ -0,0 +1,91 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/allwinner,sun20i-d1-gpadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner D1 General Purpose ADC
+
+maintainers:
+  - Maksim Kiselev <bigunclemax@gmail.com>
+
+properties:
+  compatible:
+    enum:
+      - allwinner,sun20i-d1-gpadc
+
+  "#io-channel-cells":
+    const: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+patternProperties:
+  "^channel@([0-15])$":
+    $ref: adc.yaml
+    type: object
+    description:
+      Represents the internal channels of the ADC.
+
+    properties:
+      reg:
+        items:
+          minimum: 0
+          maximum: 15
+
+    required:
+      - reg
+
+    unevaluatedProperties: false
+
+required:
+  - "#io-channel-cells"
+  - clocks
+  - compatible
+  - interrupts
+  - reg
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/sun20i-d1-ccu.h>
+    #include <dt-bindings/reset/sun20i-d1-ccu.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    gpadc: adc@2009000 {
+        compatible = "allwinner,sun20i-d1-gpadc";
+        reg = <0x2009000 0x1000>;
+        clocks = <&ccu CLK_BUS_GPADC>;
+        resets = <&ccu RST_BUS_GPADC>;
+        interrupts = <73 IRQ_TYPE_LEVEL_HIGH>;
+        #io-channel-cells = <1>;
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        channel@0 {
+            reg = <0>;
+        };
+
+        channel@1 {
+            reg = <1>;
+        };
+    };
+...