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. -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D