[PATCH 1/2] arm64: dts: ti: k3-am65: mark dss as dma-coherent

[Tomi Valkeinen]

Hi Nishanth,

On 27/08/2020 03:13, Nishanth Menon wrote:
> On 16:16-20200826, Tomi Valkeinen wrote:
>> DSS is IO coherent on AM65, so we can mark it as such with
>> 'dma-coherent' property in the DT file.
>>
>> Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
>> ---
>>  arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> index 9edfae5944f7..efd3f18f4be3 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> @@ -847,6 +847,8 @@ dss: dss at 04a00000 {
>>  
>>  		status = "disabled";
>>  
>> +		dma-coherent;
>> +
>>  		dss_ports: ports {
>>  			#address-cells = <1>;
>>  			#size-cells = <0>;
> Could you look closer at the dss node a bit? dtbs_check results in a
> change in error (on next-20200824):
> -/workdir/arch/arm64/boot/dts/ti/k3-am654-base-board.dt.yaml: dss at 04a00000: 'assigned-clock-parents', 'assigned-clocks' do not match any of the regexes: 'pinctrl-[0-9]+'
> +/workdir/arch/arm64/boot/dts/ti/k3-am654-base-board.dt.yaml: dss at 04a00000: 'assigned-clock-parents', 'assigned-clocks', 'dma-coherent' do not match any of the regexes: 'pinctrl-[0-9]+'
> 
> I am not sure what extent is the dss conversion to yaml done.

I sent a v2, with two new patches to extend the schema to cover those properties.

 Tomi

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