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

vitor
2018-08-08T16:59:24Z

Hi Rob,

On 25-07-2018 20:57, Rob Herring wrote:
> On Fri, Jul 20, 2018 at 09:57:51PM +0100, Vitor soares wrote:
>> This patch document Synopsys DesignWare I3C master DT bindings.
>>
>> Signed-off-by: Vitor soares <soares@synopsys.com>
>> ---
>> .../devicetree/bindings/i3c/snps,dw-i3c-master.txt | 43 ++++++++++++++++++++++
>> 1 file changed, 43 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..7f5c8b0
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
>> @@ -0,0 +1,43 @@
>> +Bindings for Synopsys DesignWare I3C master block
>> +=================================================
>> +
>> +Required properties:
>> +--------------------
>> +- compatible: shall be "snps,dw-i3c-master"
> Only one version and no version number?
>
> ... and an SoC specific compatible string.

I'm not understanding. Can you explain?

>
>> +- clocks: shall reference the core_clk
>> +- clock-names: shall contain "core_clk"
> "_clk" is redundant and *-names with a single entry is kind of
> pointless.

I will fix it for next version.

>
>> +- 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@0x2000 {
> Drop the '0x'
>
>> + compatible = "snps,dw-i3c-master";
>> + #address-cells = <3>;
>> + #size-cells = <0>;
>> + reg = <0x02000 0x1000>;
>> + interrupts = <0>;
>> + clocks = <&i3cclk>;
>> + clock-names = "core_clk";
>> +
>> + eeprom@0x57{
>> + compatible = "atmel,24c01";
>> + reg = < 0x57 0x80000010 0x0>;
>> + pagesize = <0x8>;
>> + };
>> + };
>> --
>> 2.7.4
>>
>>

Thanks for your feedback.

Best regards,
Vitor Soares