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[68.147.8.254]) by smtp.gmail.com with ESMTPSA id j11sm2950518pfn.38.2020.07.29.10.20.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Jul 2020 10:21:00 -0700 (PDT) Date: Wed, 29 Jul 2020 11:20:58 -0600 From: Mathieu Poirier To: Suzuki K Poulose Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, mike.leach@linaro.org, coresight@lists.linaro.org, Rob Herring , devicetree@vger.kernel.org Subject: Re: [RFC PATCH 14/14] dts: bindings: coresight: ETMv4.4 system register access only units Message-ID: <20200729172058.GA3060370@xps15> References: <20200722172040.1299289-1-suzuki.poulose@arm.com> <20200722172040.1299289-15-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200722172040.1299289-15-suzuki.poulose@arm.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Wed, Jul 22, 2020 at 06:20:40PM +0100, Suzuki K Poulose wrote: > Document the bindings for ETMv4.4 and later with only system register > access. > > Cc: Rob Herring > Cc: devicetree@vger.kernel.org > Cc: Mathieu Poirier > Cc: Mike Leach > Signed-off-by: Suzuki K Poulose > --- > Documentation/devicetree/bindings/arm/coresight.txt | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt > index d711676b4a51..cfe47bdda728 100644 > --- a/Documentation/devicetree/bindings/arm/coresight.txt > +++ b/Documentation/devicetree/bindings/arm/coresight.txt > @@ -34,9 +34,13 @@ its hardware characteristcs. > Program Flow Trace Macrocell: > "arm,coresight-etm3x", "arm,primecell"; > > - - Embedded Trace Macrocell (version 4.x): > + - Embedded Trace Macrocell (version 4.x), with memory mapped access. > "arm,coresight-etm4x", "arm,primecell"; > > + - Embedded Trace Macrocell (version 4.4 and later) with system > + register access only. > + "arm,coresight-etm-v4.4"; I would rather call this "arm,coresight-etm-v4.4+" so that the binding's semantic is still relevant when dealing with ETM v4.5 and onward. Thanks, Mathieu > + > - Coresight programmable Replicator : > "arm,coresight-dynamic-replicator", "arm,primecell"; > > -- > 2.24.1 >