[PATCH v2 1/9] ARM: dts: sam9x60: Add OHCI and EHCI DT nodes

[Eugen.Hristev at microchip.com]

On 1/3/23 18:00, Marek Vasut wrote:
> On 1/3/23 16:56, Sergiu.Moga at microchip.com wrote:
>> On 03.01.2023 17:47, Marek Vasut wrote:
>>> On 1/3/23 16:35, Sergiu Moga wrote:
>>>> Add the OHCI and EHCI DT nodes for the sam9x60 SoC's.
>>>>
>>>> Signed-off-by: Sergiu Moga <sergiu.moga at microchip.com>
>>>> ---
>>>>
>>>> v1 -> v2:
>>>> - use usb@
>>>>
>>>>    arch/arm/dts/sam9x60.dtsi | 18 ++++++++++++++++++
>>>>    1 file changed, 18 insertions(+)
>>>>
>>>> diff --git a/arch/arm/dts/sam9x60.dtsi b/arch/arm/dts/sam9x60.dtsi
>>>> index 17224ef771..4fcfb5c597 100644
>>>> --- a/arch/arm/dts/sam9x60.dtsi
>>>> +++ b/arch/arm/dts/sam9x60.dtsi
>>>> @@ -69,6 +69,24 @@
>>>>                #size-cells = <1>;
>>>>                ranges;
>>>>
>>>> +             usb1: usb at 600000 {
>>>> +                     compatible = "atmel,at91rm9200-ohci", "usb-ohci";
>>>> +                     reg = <0x00600000 0x100000>;
>>>> +                     clocks = <&pmc PMC_TYPE_PERIPHERAL 22>, <&pmc
>>>> PMC_TYPE_PERIPHERAL 22>, <&pmc PMC_TYPE_SYSTEM 21>;
>>>
>>> ./scripts/checkpatch.pl on this patch indicates
>>>
>>> WARNING: line length of 121 exceeds 100 columns
>>> #93: FILE: arch/arm/dts/sam9x60.dtsi:75:
>>> +                       clocks = <&pmc PMC_TYPE_PERIPHERAL 22>, <&pmc
>>> PMC_TYPE_PERIPHERAL 22>, <&pmc PMC_TYPE_SYSTEM 21>;
>>>
>>> Please run checkpatch on all your patches.
>>>
>>> Also, wait a few days before sending V2 , no need to send V2 immediately
>>> while review of V1 is still ongoing.
>>
>> It was my understanding that exceeding the character per line limit on
>> DT's is acceptable. All of our DT's are like this.
> 
> Not to my knowledge or per what is in other DTs.
> Is that some exception here ?

DTs have not had restrictions on 80 chars per line. Have a look in Linux.

Also, as we have a requirement to keep the DT from Linux, we either have 
to patch up Linux if there is a problem in the DT, or keep it in sync 
with Linux.
We may have exceptions if there is a too big amount of work to be done 
now to change things, to have differences in term of DT between Uboot 
and Linux. But the general guideline is to keep the DT in sync with 
Linux as it's ABI.

Eugen