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Date: Thu, 10 Apr 2014 19:23:48 +0900 From: Chanho Park <chanho61.park@...sung.com> To: 'Chanwoo Choi' <cw00.choi@...sung.com>, kgene.kim@...sung.com, t.figa@...sung.com, linux-samsung-soc@...r.kernel.org Cc: hyunhee.kim@...sung.com, sw0312.kim@...sung.com, linux-kernel@...r.kernel.org, yj44.cho@...sung.com, inki.dae@...sung.com, kyungmin.park@...sung.com, linux-arm-kernel@...ts.infradead.org Subject: RE: [PATCH 21/27] ARM: dts: exynos3250: Add PMU dt data Hi, > -----Original Message----- > From: linux-arm-kernel [mailto:linux-arm-kernel- > bounces@...ts.infradead.org] On Behalf Of Chanwoo Choi > Sent: Thursday, April 10, 2014 7:06 PM > To: kgene.kim@...sung.com; t.figa@...sung.com; linux-samsung- > soc@...r.kernel.org > Cc: hyunhee.kim@...sung.com; sw0312.kim@...sung.com; linux- > kernel@...r.kernel.org; yj44.cho@...sung.com; inki.dae@...sung.com; > cw00.choi@...sung.com; kyungmin.park@...sung.com; linux-arm- > kernel@...ts.infradead.org > Subject: [PATCH 21/27] ARM: dts: exynos3250: Add PMU dt data > > From: Hyunhee Kim <hyunhee.kim@...sung.com> > > ARM CPU has its own PMU (Performance Monitoring Unit). This patch add > PMU dt > data to support PMU for CPU. Exynos3250 has four PMU interrupts. > > Signed-off-by: Hyunhee Kim <hyunhee.kim@...sung.com> > Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com> > --- > arch/arm/boot/dts/exynos3250.dtsi | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm/boot/dts/exynos3250.dtsi > b/arch/arm/boot/dts/exynos3250.dtsi > index ceed761..2f0ca32 100644 > --- a/arch/arm/boot/dts/exynos3250.dtsi > +++ b/arch/arm/boot/dts/exynos3250.dtsi > @@ -280,4 +280,9 @@ > pinctrl-0 = <&i2c7_bus>; > status = "disabled"; > }; > + > + pmu { > + compatible = "arm,cortex-a7-pmu"; > + interrupts = <0 18 0>, <0 19 0>, <0 20 0>, <0 21 0>; > + }; As I know, the exynos3250 has two CPU cores. Why does it have four pmu interrupts? IMO it is sufficient it has only two interrupts. Best Regards, Chanho Park -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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