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@xxxxxx> >> --- >> 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@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@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@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 -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki