From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chanho Park Subject: RE: [PATCH-RESEND] ARM: dts: Add arm-pmu node for exynos4412 Date: Tue, 29 Apr 2014 15:56:45 +0900 Message-ID: <00f501cf6378$2efd6ee0$8cf84ca0$@samsung.com> References: <1376044914-1759-1-git-send-email-chanho61.park@samsung.com> <535F41B1.70404@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from mailout2.samsung.com ([203.254.224.25]:34819 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755268AbaD2G4r (ORCPT ); Tue, 29 Apr 2014 02:56:47 -0400 Received: from epcpsbgr2.samsung.com (u142.gpu120.samsung.co.kr [203.254.230.142]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N4S00GBE5YL1J00@mailout2.samsung.com> for linux-samsung-soc@vger.kernel.org; Tue, 29 Apr 2014 15:56:45 +0900 (KST) In-reply-to: <535F41B1.70404@linaro.org> Content-language: ko Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: 'Tushar Behera' , kgene.kim@samsung.com Cc: linux-samsung-soc@vger.kernel.org, thomas.abraham@linaro.org, linux-arm-kernel@lists.infradead.org, 'Kyungmin Park' Hi Tushar, > -----Original Message----- > From: Tushar Behera [mailto:tushar.behera@linaro.org] > Sent: Tuesday, April 29, 2014 3:08 PM > To: Chanho Park; kgene.kim@samsung.com > Cc: linux-samsung-soc@vger.kernel.org; thomas.abraham@linaro.org; linux- > arm-kernel@lists.infradead.org; Kyungmin Park > Subject: Re: [PATCH-RESEND] ARM: dts: Add arm-pmu node for exynos4412 > > On 08/09/2013 04:11 PM, Chanho Park wrote: > > The Exynos4412 has 4 cpus and each has a performance counter. > > Thus, we should define 4 interrupts which are combined by irq-combiner > for arm > > pmu. > > > > Signed-off-by: Chanho Park > > Signed-off-by: Kyungmin Park > > --- > > arch/arm/boot/dts/exynos4412.dtsi | 6 ++++++ > > 1 file changed, 6 insertions(+) > > > > diff --git a/arch/arm/boot/dts/exynos4412.dtsi > b/arch/arm/boot/dts/exynos4412.dtsi > > index e743e67..cfad655 100644 > > --- a/arch/arm/boot/dts/exynos4412.dtsi > > +++ b/arch/arm/boot/dts/exynos4412.dtsi > > @@ -35,6 +35,12 @@ > > <0 107 0>, <0 108 0>, <0 48 0>, <0 42 0>; > > }; > > > > + pmu { > > + compatible = "arm,cortex-a9-pmu"; > > + interrupt-parent = <&combiner>; > > + interrupts = <2 2>, <3 2>, <18 2>, <19 2>; > > + }; > > + > > mct@10050000 { > > compatible = "samsung,exynos4412-mct"; > > reg = <0x10050000 0x800>; > > > > Tested on Exynos4412 based Origen-Quad board. You would required to > rebase it on latest code though. > > Tested-by: Tushar Behera You took old patch which I cannot remember now:) Actually, arm-pmu support for exynos4412 was already merged in the latest code.[1]. I sent a clean-up patch recently[2]. It could be more readable for exynos4412. Thanks. [1] : https://lkml.org/lkml/2014/3/12/27 [2] : http://www.spinics.net/linux/lists/arm-kernel/msg325565.html Best Regards, Chanho Park