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Wed, 14 Feb 2024 07:32:22 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCUw+5lPFplGqvj1MYKo6OJms2q7hssc32FlwjvPtOBA+tDREHoCfVz+idCVGpdnyQXgIeDx21jWoDH9prrOhUKRDeH49it7poqvDonpIx8+IP9pQGd1T7Lg+o7Jeg3ENUwb4drqIYIodW5GPO5G9XkmRGjDpiBDKHb3IDfAhgZ7794JPzpc+Os= X-Gm-Message-State: AOJu0Yzmv2qP5PEd/ciFFGffSGEKSH2FDUZIgigTBuTgk2IAefz9q29Z Ur0zJFN4Hfn6HQVACNjr+yrrsitBK/1vxt7ZF/7kFJoKpVm4vZNWvSS5z4ry+d7Brtc1huaNoNW 0hEZFg0DlttT7uwOYB/aHsFCLJA== X-Received: by 2002:a05:651c:2008:b0:2d0:cbcd:a33c with SMTP id s8-20020a05651c200800b002d0cbcda33cmr1952171ljo.53.1707924740981; Wed, 14 Feb 2024 07:32:20 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20240213160521.15925-1-quic_jinlmao@quicinc.com> <20240213160521.15925-2-quic_jinlmao@quicinc.com> <20240213222957.GA2502642-robh@kernel.org> <162256e1-416f-46ea-9698-9de507768cb0@quicinc.com> In-Reply-To: <162256e1-416f-46ea-9698-9de507768cb0@quicinc.com> From: Rob Herring Date: Wed, 14 Feb 2024 15:32:07 +0000 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v1 1/2] dt-bindings: arm: qcom,coresight-tpdm: Rename qcom,dsb-element-size To: Jinlong Mao Cc: James Clark , Mike Leach , Bjorn Andersson , Konrad Dybcio , Krzysztof Kozlowski , Conor Dooley , Tao Zhang , Alexander Shishkin , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, Feb 14, 2024 at 8:18=E2=80=AFAM Jinlong Mao wrote: > > > On 2/14/2024 5:36 PM, James Clark wrote: > > > > On 14/02/2024 01:43, Jinlong Mao wrote: > >> On 2/14/2024 6:29 AM, Rob Herring wrote: > >>> On Tue, Feb 13, 2024 at 08:05:17AM -0800, Mao Jinlong wrote: > >>>> Change qcom,dsb-element-size to qcom,dsb-element-bits as the unit is > >>>> bit. > >>> That may be, but this is an ABI and you are stuck with it. Unless, yo= u > >>> can justify why that doesn't matter. (IIRC, this is new, so maybe no > >>> users yet?) > >> Hi Rob, > >> > >> Because for CMB type, it uses qcom,cmb-element-bits. So I change the > >> format to be the same as > >> CMB. > >> > >> Thanks > >> Jinlong Mao > >> > > I think what Rob was trying to say was that in the interest of not > > breaking existing DTs it's best to leave the existing names as they are= , > > even if they aren't technically correct. And to only add new parameters > > with the -bits suffix, even if it's inconsistent with what's already th= ere. > > Hi Rob & James, > > There is no tpdm nodes in any DT as of now. So I want to make this > change before any tpdm > node is added in DT. Then the commit msg needs to state that detail. Rob