Re: [PATCH v3 2/3] dt-bindings: i3c: Document Synopsys DesignWare I3C master bindings

From: Boris Brezillon
Date: Mon Nov 12 2018 - 04:17:21 EST


On Thu, 8 Nov 2018 17:14:10 +0000
Vitor soares <vitor.soares@xxxxxxxxxxxx> wrote:

> Document Synopsys DesignWare I3C master module
>
> Signed-off-by: Vitor soares <soares@xxxxxxxxxxxx>
> ---
> Changes in v3:
> - Remove dummy characters
>
> Changes in v2:
> - Address the changes in Documentation/devicetree/bindings/i3c/i3c.txt
> - Add controller version on compatible string
>
> .../devicetree/bindings/i3c/snps,dw-i3c-master.txt | 42 ++++++++++++++++++++++
> 1 file changed, 42 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
>
> diff --git a/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt b/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
> new file mode 100644
> index 0000000..b930c09
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
> @@ -0,0 +1,42 @@
> +Bindings for Synopsys DesignWare I3C master block
> +=================================================
> +
> +Required properties:
> +--------------------
> +- compatible: shall be "snps,dw-i3c-master-1.00a"
> +- clocks: shall reference the core_clk

Are you sure this IP only requires only one clock? If you're unsure,
you'd better have a clock-names prop.

> +- interrupts: the interrupt line connected to this I3C master
> +- reg: Offset and length of I3C master registers
> +
> +Mandatory properties defined by the generic binding (see
> +Documentation/devicetree/bindings/i3c/i3c.txt for more details):
> +
> +- #address-cells: shall be set to 3
> +- #size-cells: shall be set to 0
> +
> +Optional properties defined by the generic binding (see
> +Documentation/devicetree/bindings/i3c/i3c.txt for more details):
> +
> +- i2c-scl-hz
> +- i3c-scl-hz
> +
> +I3C device connected on the bus follow the generic description (see
> +Documentation/devicetree/bindings/i3c/i3c.txt for more details).
> +
> +Example:
> +
> + i3c-master@2000 {
> + compatible = "snps,dw-i3c-master-1.00a";
> + #address-cells = <3>;
> + #size-cells = <0>;
> + reg = <0x02000 0x1000>;
> + interrupts = <0>;
> + clocks = <&i3cclk>;
> +
> + eeprom@57{
> + compatible = "atmel,24c01";
> + reg = < 0x57 0x0 0x10>;

^ remove this white space.

> + pagesize = <0x8>;
> + };
> + };
> +