Re: [PATCH 07/14] riscv: dts: canaan: fix the k210's memory node

[Conor.Dooley]

On 20/06/2022 00:38, Damien Le Moal wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On 6/18/22 21:30, Conor Dooley wrote:
>> From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
>>
>> The k210 memory node has a compatible string that does not match with
>> any driver or dt-binding & has several non standard properties.
>> Replace the reg names with a comment and delete the rest.
>>
>> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
>> ---
>> ---
>>  arch/riscv/boot/dts/canaan/k210.dtsi | 6 ------
>>  1 file changed, 6 deletions(-)
>>
>> diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
>> index 44d338514761..287ea6eebe47 100644
>> --- a/arch/riscv/boot/dts/canaan/k210.dtsi
>> +++ b/arch/riscv/boot/dts/canaan/k210.dtsi
>> @@ -69,15 +69,9 @@ cpu1_intc: interrupt-controller {
>>
>>       sram: memory@80000000 {
>>               device_type = "memory";
>> -             compatible = "canaan,k210-sram";
>>               reg = <0x80000000 0x400000>,
>>                     <0x80400000 0x200000>,
>>                     <0x80600000 0x200000>;
>> -             reg-names = "sram0", "sram1", "aisram";
>> -             clocks = <&sysclk K210_CLK_SRAM0>,
>> -                      <&sysclk K210_CLK_SRAM1>,
>> -                      <&sysclk K210_CLK_AI>;
>> -             clock-names = "sram0", "sram1", "aisram";
>>       };
> 
> These are used by u-boot to setup the memory clocks and initialize the
> aisram. Sure the kernel actually does not use this, but to be in sync with
> u-boot DT, I would prefer keeping this as is. Right now, u-boot *and* the
> kernel work fine with both u-boot internal DT and the kernel DT.

Right, but unfortunately that desire alone doesn't do anything about
the dtbs_check complaints.

I guess the alternative approach of actually documenting the compatible
would be more palatable?

Thanks,
Conor.