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Tue, 01 Oct 2019 06:18:11 -0700 (PDT) Received: from pi3 ([194.230.155.145]) by smtp.googlemail.com with ESMTPSA id y5sm3780299wma.14.2019.10.01.06.18.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2019 06:18:09 -0700 (PDT) Date: Tue, 1 Oct 2019 15:18:07 +0200 From: Krzysztof Kozlowski To: Lukasz Luba Subject: Re: [PATCH v2 1/4] dt-bindings: memory-controllers: Add Exynos5422 DMC interrupts description Message-ID: <20191001131807.GB30129@pi3> References: <20191001125436.24086-1-l.luba@partner.samsung.com> <20191001125436.24086-2-l.luba@partner.samsung.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191001125436.24086-2-l.luba@partner.samsung.com> User-Agent: Mutt/1.12.1 (2019-06-15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191001_061814_062402_A1EB2601 X-CRM114-Status: GOOD ( 17.12 ) 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 On Tue, Oct 01, 2019 at 02:54:33PM +0200, Lukasz Luba wrote: > Add description for optional interrupt lines. It provides a new operation > mode, which uses internal performance counters interrupt when overflow. > This is more reliable than using default polling mode implemented in > devfreq. > > Signed-off-by: Lukasz Luba > --- > .../bindings/memory-controllers/exynos5422-dmc.txt | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/Documentation/devicetree/bindings/memory-controllers/exynos5422-dmc.txt b/Documentation/devicetree/bindings/memory-controllers/exynos5422-dmc.txt > index 02aeb3b5a820..afc38aea6b1c 100644 > --- a/Documentation/devicetree/bindings/memory-controllers/exynos5422-dmc.txt > +++ b/Documentation/devicetree/bindings/memory-controllers/exynos5422-dmc.txt > @@ -31,6 +31,13 @@ Required properties for DMC device for Exynos5422: > The register offsets are in the driver code and specyfic for this SoC > type. > > +Optional properties for DMC device for Exynos5422: > +- interrupt-parent : The parent interrupt controller. > +- interrupts : Contains the IRQ line numbers for the DMC internal performance > + event counters. Align with specification of the interrupt line(s) in the > + interrupt-parent controller. > +- interrupt-names : List of IRQ names. Since the names are important (not the order) they are part of the bindings and they must be listed here. Best regards, Krzysztof > + > Example: > > ppmu_dmc0_0: ppmu@10d00000 { > @@ -70,4 +77,7 @@ Example: > device-handle = <&samsung_K3QF2F20DB>; > vdd-supply = <&buck1_reg>; > samsung,syscon-clk = <&clock>; > + interrupt-parent = <&combiner>; > + interrupts = <16 0>, <16 1>; > + interrupt-names = "drex_0", "drex_1"; > }; > -- > 2.17.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel