From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krzysztof Kozlowski Subject: Re: [PATCH v2 1/4] dt-bindings: memory-controllers: Add Exynos5422 DMC interrupts description Date: Tue, 1 Oct 2019 15:18:07 +0200 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-Type: text/plain; charset=utf-8 Return-path: Content-Disposition: inline In-Reply-To: <20191001125436.24086-2-l.luba@partner.samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: Lukasz Luba Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, b.zolnierkie@samsung.com, kgene@kernel.org, mark.rutland@arm.com, cw00.choi@samsung.com, kyungmin.park@samsung.com, m.szyprowski@samsung.com, s.nawrocki@samsung.com, myungjoo.ham@samsung.com, robh+dt@kernel.org, willy.mh.wolff.ml@gmail.com List-Id: devicetree@vger.kernel.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 >