Hello Geert,
Thank you for the patch!
> From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> 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 <geert+renesas@xxxxxxxxx>
Tested-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
Reviewed-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
> ---
> 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
