[2/3] dt-bindings: sound: Add Xilinx logicPD-I2S FPGA IP bindings
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Message ID 20190830210607.22644-2-miquel.raynal@bootlin.com
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Commit Message

Miquel Raynal Aug. 30, 2019, 9:06 p.m. UTC
Document the logicPD I2S FPGA block bindings in yaml.

Syntax verified with dt-doc-validate.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 .../bindings/sound/xlnx,logicpd-i2s.yaml      | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml

Comments

Rob Herring Sept. 2, 2019, 1:39 p.m. UTC | #1
On Fri, Aug 30, 2019 at 11:06:06PM +0200, Miquel Raynal wrote:
> Document the logicPD I2S FPGA block bindings in yaml.
> 
> Syntax verified with dt-doc-validate.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> ---
>  .../bindings/sound/xlnx,logicpd-i2s.yaml      | 57 +++++++++++++++++++
>  1 file changed, 57 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml b/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> new file mode 100644
> index 000000000000..cbff641af199
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/xlnx,logicpd-i2s.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Device-Tree bindings for Xilinx logicPD I2S FPGA block
> +
> +maintainers:
> +  - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +description: |
> +  The IP supports I2S playback/capture audio. It acts as a slave and
> +  clocks should come from the codec. It only supports two channels and
> +  S16_LE format.
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: xlnx,logicpd-i2s
> +
> +  reg:
> +    maxItems: 1
> +    description:
> +      Base address and size of the IP core instance.
> +
> +  interrupts:
> +    minItems: 1
> +    maxItems: 2
> +    items:
> +      - description: tx interrupt
> +      - description: rx interrupt
> +    description:
> +      Either the Tx interruption or the Rx interruption or both.

The schema says either tx or both. Doesn't really matter here as it's 
just numbers.

> +
> +  interrupt-names:
> +    minItems: 1
> +    maxItems: 2
> +    items:
> +      - const: tx
> +      - const: rx

But here it does matter.

The easiest way to express this is:

oneOf:
  - items:
      - enum: [ tx, rx ]
  - items:
      - const: tx
      - const: rx

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - interrupts-controller
> +
> +examples:
> +  - |
> +    logii2s_dai: logii2s-dai@43c10000 {
> +        reg = <0x43c10000 0x1000>;
> +        compatible = "xlnx,logicpd-i2s-dai";
> +        interrupt-parent = <&intc>;
> +        interrupts = <0 29 IRQ_TYPE_LEVEL_HIGH>, <0 30 IRQ_TYPE_LEVEL_HIGH>;
> +        interrupt-names = "rx", "tx";
> +    };
> -- 
> 2.20.1
>
Miquel Raynal Sept. 2, 2019, 1:51 p.m. UTC | #2
Hi Rob,

Thanks for the review, one question below.

Rob Herring <robh@kernel.org> wrote on Mon, 02 Sep 2019 14:39:09 +0100:

> On Fri, Aug 30, 2019 at 11:06:06PM +0200, Miquel Raynal wrote:
> > Document the logicPD I2S FPGA block bindings in yaml.
> > 
> > Syntax verified with dt-doc-validate.
> > 
> > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> > ---
> >  .../bindings/sound/xlnx,logicpd-i2s.yaml      | 57 +++++++++++++++++++
> >  1 file changed, 57 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml b/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> > new file mode 100644
> > index 000000000000..cbff641af199
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> > @@ -0,0 +1,57 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/sound/xlnx,logicpd-i2s.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Device-Tree bindings for Xilinx logicPD I2S FPGA block
> > +
> > +maintainers:
> > +  - Miquel Raynal <miquel.raynal@bootlin.com>
> > +
> > +description: |
> > +  The IP supports I2S playback/capture audio. It acts as a slave and
> > +  clocks should come from the codec. It only supports two channels and
> > +  S16_LE format.
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - const: xlnx,logicpd-i2s
> > +
> > +  reg:
> > +    maxItems: 1
> > +    description:
> > +      Base address and size of the IP core instance.
> > +
> > +  interrupts:
> > +    minItems: 1
> > +    maxItems: 2
> > +    items:
> > +      - description: tx interrupt
> > +      - description: rx interrupt
> > +    description:
> > +      Either the Tx interruption or the Rx interruption or both.  
> 
> The schema says either tx or both. Doesn't really matter here as it's 
> just numbers.

I see , I'll drop the 'items' entry.

> 
> > +
> > +  interrupt-names:
> > +    minItems: 1
> > +    maxItems: 2
> > +    items:
> > +      - const: tx
> > +      - const: rx  
> 
> But here it does matter.
> 
> The easiest way to express this is:
> 
> oneOf:
>   - items:
>       - enum: [ tx, rx ]
>   - items:
>       - const: tx
>       - const: rx
> 

Does this enforce an order? (I don't know if it matters, though, but in
the bellow example I put the Rx interrupt first).

> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - interrupts-controller
> > +
> > +examples:
> > +  - |
> > +    logii2s_dai: logii2s-dai@43c10000 {
> > +        reg = <0x43c10000 0x1000>;
> > +        compatible = "xlnx,logicpd-i2s-dai";
> > +        interrupt-parent = <&intc>;
> > +        interrupts = <0 29 IRQ_TYPE_LEVEL_HIGH>, <0 30 IRQ_TYPE_LEVEL_HIGH>;
> > +        interrupt-names = "rx", "tx";
> > +    };
> > -- 
> > 2.20.1
> >   
> 

Thanks,
Miquèl
Rob Herring Sept. 2, 2019, 2:24 p.m. UTC | #3
On Mon, Sep 2, 2019 at 2:51 PM Miquel Raynal <miquel.raynal@bootlin.com> wrote:
>
> Hi Rob,
>
> Thanks for the review, one question below.
>
> Rob Herring <robh@kernel.org> wrote on Mon, 02 Sep 2019 14:39:09 +0100:
>
> > On Fri, Aug 30, 2019 at 11:06:06PM +0200, Miquel Raynal wrote:
> > > Document the logicPD I2S FPGA block bindings in yaml.
> > >
> > > Syntax verified with dt-doc-validate.
> > >
> > > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> > > ---
> > >  .../bindings/sound/xlnx,logicpd-i2s.yaml      | 57 +++++++++++++++++++
> > >  1 file changed, 57 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> > >
> > > diff --git a/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml b/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> > > new file mode 100644
> > > index 000000000000..cbff641af199
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
> > > @@ -0,0 +1,57 @@
> > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/sound/xlnx,logicpd-i2s.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Device-Tree bindings for Xilinx logicPD I2S FPGA block
> > > +
> > > +maintainers:
> > > +  - Miquel Raynal <miquel.raynal@bootlin.com>
> > > +
> > > +description: |
> > > +  The IP supports I2S playback/capture audio. It acts as a slave and
> > > +  clocks should come from the codec. It only supports two channels and
> > > +  S16_LE format.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    items:
> > > +      - const: xlnx,logicpd-i2s
> > > +
> > > +  reg:
> > > +    maxItems: 1
> > > +    description:
> > > +      Base address and size of the IP core instance.
> > > +
> > > +  interrupts:
> > > +    minItems: 1
> > > +    maxItems: 2
> > > +    items:
> > > +      - description: tx interrupt
> > > +      - description: rx interrupt
> > > +    description:
> > > +      Either the Tx interruption or the Rx interruption or both.
> >
> > The schema says either tx or both. Doesn't really matter here as it's
> > just numbers.
>
> I see , I'll drop the 'items' entry.
>
> >
> > > +
> > > +  interrupt-names:
> > > +    minItems: 1
> > > +    maxItems: 2
> > > +    items:
> > > +      - const: tx
> > > +      - const: rx
> >
> > But here it does matter.
> >
> > The easiest way to express this is:
> >
> > oneOf:
> >   - items:
> >       - enum: [ tx, rx ]
> >   - items:
> >       - const: tx
> >       - const: rx
> >
>
> Does this enforce an order? (I don't know if it matters, though, but in
> the bellow example I put the Rx interrupt first).

Yes. It does matter and should be defined what the order it.

Rob

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml b/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
new file mode 100644
index 000000000000..cbff641af199
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/xlnx,logicpd-i2s.yaml
@@ -0,0 +1,57 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/xlnx,logicpd-i2s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Device-Tree bindings for Xilinx logicPD I2S FPGA block
+
+maintainers:
+  - Miquel Raynal <miquel.raynal@bootlin.com>
+
+description: |
+  The IP supports I2S playback/capture audio. It acts as a slave and
+  clocks should come from the codec. It only supports two channels and
+  S16_LE format.
+
+properties:
+  compatible:
+    items:
+      - const: xlnx,logicpd-i2s
+
+  reg:
+    maxItems: 1
+    description:
+      Base address and size of the IP core instance.
+
+  interrupts:
+    minItems: 1
+    maxItems: 2
+    items:
+      - description: tx interrupt
+      - description: rx interrupt
+    description:
+      Either the Tx interruption or the Rx interruption or both.
+
+  interrupt-names:
+    minItems: 1
+    maxItems: 2
+    items:
+      - const: tx
+      - const: rx
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupts-controller
+
+examples:
+  - |
+    logii2s_dai: logii2s-dai@43c10000 {
+        reg = <0x43c10000 0x1000>;
+        compatible = "xlnx,logicpd-i2s-dai";
+        interrupt-parent = <&intc>;
+        interrupts = <0 29 IRQ_TYPE_LEVEL_HIGH>, <0 30 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-names = "rx", "tx";
+    };