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Tue, 1 Oct 2019 12:38:44 +0000 (GMT) X-AuditID: cbfec7f5-4f7ff70000001116-24-5d9348d4aacc Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id CA.0B.04166.4D8439D5; Tue, 1 Oct 2019 13:38:44 +0100 (BST) Received: from [106.120.51.20] (unknown [106.120.51.20]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20191001123843eusmtip237921a023022d439d4283e2bae0b2dd9~JhjjG90Ma1599415994eusmtip2u; Tue, 1 Oct 2019 12:38:43 +0000 (GMT) Subject: Re: [PATCH 1/3] ARM: dts: exynos: Add interrupt to DMC controller in Exynos5422 To: Krzysztof Kozlowski From: Lukasz Luba Message-ID: <16c56e81-d0a7-a405-fa12-83442364c260@partner.samsung.com> Date: Tue, 1 Oct 2019 14:38:43 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190927085359.GA19131@pi3> Content-Language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA01Sa0hTYRju29m5OJodp+WbhcEKUkMzKvgg8QIq+5XRrzBWrXZQyU3bmZYm 5KWLzmtalqs0pZoMY2ViOkpBl1O6mOYtozCVpFKLZg3BLI/HyH/P+7zP+z7P+/ExhGKI9GOS 9EbOoNckKymZtLlr/lXwgKpCHZo/sh0/vG4j8fDcFIlrHK9IXDrxlcC9vQ9o/DJ3msaNE0Mk fmO/SWFXsQPh671tEnzf8Z7Gd4f7JPhdTj2FLzx10Lhz+hKJf3WPo0hW1VDdgFSt5ve0qtFa QKke3TmnKmmyIpWr0f8AFS8L03LJSemcYWf4MVliSf2O1HbZmdqKQjIbdTImxDDA7oEnV3Um 5MEo2HoETlOgCcmW8ByC9hdtlFi4EPTbZ0hBJQzk5UyQYsOCILfsrUQsZhCU5nykBZU3Gw8N rkGpgH3YQBj+7V6eJlgzAYM1QYI1xYZAi/WUQMvZWCirvCcRaCm7DS4WUAK9nj0EP8Y6SVHi BT1Vk8sbPZY2jtxYpMWNvjA6WSMR8RZ4PHOTEOIAm8OA6ZsTiaGjYd49KxGxN3xxNtEi3gzP K4qkIuYhu7h2RZ8FE6W3VjT7oNPZRwrZiCVjm32nSEdBV79FKj6iJ4zMeIkRPKG8+Roh0nLI v6gQ1QHQVPR6JcAGsDRU0mVIaV51mHnVMeZVx5j/+95GUivy5dJ4XQLH79Zzp0N4jY5P0yeE nEjRNaKl3/Z80fmzBbUtHO9ALIOUa+V46rJaQWrS+QxdBwKGUPrIwxbK1Qq5VpORyRlSjhrS kjm+A21ipEpf+dk1Y4cVbILGyJ3kuFTO8K8rYTz8slHcEKxxr1PRza37Y5SLan0wepeSanRE dEcfKd0b62+LURf98aprabI0X+juW7BndXwecGurAii/iO/h97e7t1SFvul5Vh1l4lsTvGxH XMYPYenedYu2SGvhp6nM+BPjwXULvv3G9vNbr+QRksKNEQfDb0BitU+c1t81SrGWWaWUT9Ts CiIMvOYvnYKBEGkDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDIsWRmVeSWpSXmKPExsVy+t/xe7pXPCbHGlz7x2WxccZ6VovrX56z Wsw/co7Vov/xa2aL8+c3sFucbXrDbrHp8TVWi8u75rBZfO49wmgx4/w+Jou1R+6yWyy9fpHJ 4nbjCjaL1r1H2C0Ov2lntfh24hGjg4DHmnlrGD12zrrL7rFpVSebx+Yl9R59W1YxenzeJBfA FqVnU5RfWpKqkJFfXGKrFG1oYaRnaGmhZ2RiqWdobB5rZWSqpG9nk5Kak1mWWqRvl6CX0bdC u2A/V8XCyd2sDYyHOboYOTkkBEwkmhsfs4LYQgJLGSWez3aBiItJTNq3nR3CFpb4c62LrYuR C6jmNaNEz7wvjCAJYYEoib3r54MViQhoSlz/+50VpIhZYBazxPorzSwQHS8YJa6caGfuYuTg YBPQk9ixqhCkgVfATWLCtGVMIGEWARWJtk42kLCoQITE4R2zGCFKBCVOznzCAmJzAs2/Mfsf 2C5mATOJeZsfMkPY4hK3nsxngrDlJba/ncM8gVFoFpL2WUhaZiFpmYWkZQEjyypGkdTS4tz0 3GJDveLE3OLSvHS95PzcTYzAmN527OfmHYyXNgYfYhTgYFTi4Z3wcmKsEGtiWXFl7iFGCQ5m JRFemz+TYoV4UxIrq1KL8uOLSnNSiw8xmgL9NpFZSjQ5H5hu8kriDU0NzS0sDc2NzY3NLJTE eTsEDsYICaQnlqRmp6YWpBbB9DFxcEo1MHpxKDecfPNweoayqUnCvMmsm5R5mzvaJ28V+Ga8 5+mzAwuvTFzWlsFswOb8audV/6uc4do3n7olV5Y/67GdWjWR+7uzyxpG89CdLw/tWhYcvvYr Z/h52xtRSTpfV83ICZ9aMEV/2VdR48Pad4SPxPvX+LO8VZjBOWmvbqtguYLziic/prJy6Cqx FGckGmoxFxUnAgDoPfRt/wIAAA== X-CMS-MailID: 20191001123844eucas1p1ab3cf26fa7a5ec8748b67f49df5aaa47 X-Msg-Generator: CA X-RootMTR: 20190925161842eucas1p271a9cf4f62b3d7af02c0a5d0d1eb9c4f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190925161842eucas1p271a9cf4f62b3d7af02c0a5d0d1eb9c4f References: <20190925161813.21117-1-l.luba@partner.samsung.com> <20190925161813.21117-2-l.luba@partner.samsung.com> <20190927085359.GA19131@pi3> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191001_053846_774269_4619187D X-CRM114-Status: GOOD ( 17.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, willy.mh.wolff.ml@gmail.com, linux-samsung-soc@vger.kernel.org, b.zolnierkie@samsung.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, cw00.choi@samsung.com, kyungmin.park@samsung.com, kgene@kernel.org, myungjoo.ham@samsung.com, s.nawrocki@samsung.com, linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Krzysztof, On 9/27/19 10:53 AM, Krzysztof Kozlowski wrote: > On Wed, Sep 25, 2019 at 06:18:11PM +0200, Lukasz Luba wrote: >> Add interrupt to Dynamic Memory Controller in Exynos5422 and Odroid >> XU3-family boards. It will be used instead of devfreq polling mode >> governor. The interrupt is connected to performance counters private >> for DMC, which might track utilisation of the memory channels. >> >> Signed-off-by: Lukasz Luba >> --- >> arch/arm/boot/dts/exynos5420.dtsi | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi >> index ac49373baae7..72738e620d11 100644 >> --- a/arch/arm/boot/dts/exynos5420.dtsi >> +++ b/arch/arm/boot/dts/exynos5420.dtsi >> @@ -240,6 +240,8 @@ >> dmc: memory-controller@10c20000 { >> compatible = "samsung,exynos5422-dmc"; >> reg = <0x10c20000 0x100>, <0x10c30000 0x100>; >> + interrupt-parent = <&combiner>; >> + interrupts = <16 0>; > > You register DMC for DREX0 and DREX1 but take only DREX0 interrupt. Why > skipping second? > Right, the second should also be there: <16 1>. The channel 1 has not been triggered in CPU test cases but might be used by some other NoC clients. I will add it in the next version. Regards, Lukasz _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel