Hello Geert, Thank you for the patch!
> From: Geert Uytterhoeven <[email protected]> > Sent: 19 August 2019 13:45 > Subject: [PATCH] ARM: dts: r8a77470: Add PMU device node > > Enable support for the ARM Performance Monitor Units in the Cortex-A7 > CPU cores on RZ/G1C by adding a device node for the PMU. > > New Linux output: > > hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters > available > > Signed-off-by: Geert Uytterhoeven <[email protected]> Tested-by: Fabrizio Castro <[email protected]> Reviewed-by: Fabrizio Castro <[email protected]> > --- > Untested on actual hardware. I even made up the kernel output ;-) Good guess! > > arch/arm/boot/dts/r8a77470.dtsi | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm/boot/dts/r8a77470.dtsi b/arch/arm/boot/dts/r8a77470.dtsi > index 56cb10b42ed940dd..51806c7f486a3681 100644 > --- a/arch/arm/boot/dts/r8a77470.dtsi > +++ b/arch/arm/boot/dts/r8a77470.dtsi > @@ -63,6 +63,13 @@ > clock-frequency = <0>; > }; > > + pmu { > + compatible = "arm,cortex-a7-pmu"; > + interrupts-extended = <&gic GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>, > + <&gic GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>; > + interrupt-affinity = <&cpu0>, <&cpu1>; > + }; > + > /* External SCIF clock */ > scif_clk: scif { > compatible = "fixed-clock"; > -- > 2.17.1
