On Tue, Dec 01, 2020 at 01:39:26PM +0100, Martin Kepplinger wrote: > From: Leonard Crestez <leonard.crestez@xxxxxxx> > > Add initial support for dynamic frequency scaling of main NOC. > > Make DDRC the parent of the NOC (using passive governor) so that the > main NOC is automatically scaled together with DDRC by default. > > Support for proactive scaling via interconnect will come on top. > > Signed-off-by: Leonard Crestez <leonard.crestez@xxxxxxx> > Tested-by: Martin Kepplinger <martin.kepplinger@xxxxxxx> (imx8mq) > --- > arch/arm64/boot/dts/freescale/imx8mm.dtsi | 22 ++++++++++++++++++++++ > arch/arm64/boot/dts/freescale/imx8mn.dtsi | 22 ++++++++++++++++++++++ > arch/arm64/boot/dts/freescale/imx8mq.dtsi | 22 ++++++++++++++++++++++ > 3 files changed, 66 insertions(+) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi > index c824f2615fe8..835b19f0ea42 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi > @@ -921,6 +921,28 @@ > > }; > > + noc: interconnect@32700000 { > + compatible = "fsl,imx8mm-noc", "fsl,imx8m-noc"; > + reg = <0x32700000 0x100000>; > + clocks = <&clk IMX8MM_CLK_NOC>; > + devfreq = <&ddrc>; This does not pass the dtschema checks. Are you missing here any dependencies? arch/arm64/boot/dts/freescale/imx8mm-evk.dt.yaml: interconnect@32700000: 'devfreq' does not match any of the regexes: 'pinctrl-[0-9]+' Best regards, Krzysztof