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Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by desiato.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uXbFk-00000007pjU-0Yl2 for linux-arm-kernel@lists.infradead.org; Fri, 04 Jul 2025 07:54:38 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 30BCA467A9; Fri, 4 Jul 2025 07:54:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51210C4CEE3; Fri, 4 Jul 2025 07:54:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751615673; bh=5p7gOND5S78G6c8QwUB05hpS5qSqTn8+V/uQ6I3tCTk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=liuKYEfYk33H3iySy8AibMWijxSIkotOWfcfrcw5YyZGUaSLZgf9bfYCW5W40+5nx Jb1tiRwm7vt/FF3L8AQYkLoHyZ3b9ImOJEZWJCh9iVLJB/Tmn+78WHNvYOCRigrSP0 5r4ruhr/aeAxBIsd21ZFYpXsZL7cHxnaGbky9Z8GA2rrouvCoNeoeDx+rjTSVfoXDA ThAQhAcNM5ZAGq4qIEHTbDeWpnOzI66L3XLHDmsJnGflM6CmFjYeZ2dQXr/+y9csct B2r0BkgupWvBNMtnX3t0qPMaap/lfUXVufxG/vlG5EOtwHFy4VuKHcg3794xre3i0I vBnDaRp+75VAA== Message-ID: <3551dba1-0c5f-4000-8b95-6a04cd81a027@kernel.org> Date: Fri, 4 Jul 2025 09:54:27 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/2] Enable CTCU device for QCS8300 To: Jie Gan , Jie Gan , Suzuki K Poulose , Mike Leach , James Clark , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio Cc: 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 References: <20250624095905.7609-1-jie.gan@oss.qualcomm.com> <338a9ee1-10aa-4bd2-9b0a-5006ed571bb9@quicinc.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250704_085436_641155_1544A883 X-CRM114-Status: GOOD ( 12.12 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 25/06/2025 02:59, Jie Gan wrote: > > > On 6/24/2025 5:59 PM, Jie Gan wrote: >> Enable CTCU device for QCS8300 platform. Add a fallback mechnasim in binding to utilize >> the compitable of the SA8775p platform becuase the CTCU for QCS8300 shares same >> configurations as SA8775p platform. > > Hi dear maintainers, > > I just realized it would be more efficient to introduce a common > compatible string for SoCs that include two TMC ETR devices. > > Most of these SoCs share the same CTCU data configuration, such as the "Most" basically disqualifies your idea. > offsets for the ATID and IRQ registers, because they integrate the same > version of the CTCU hardware. > > So I propose introducing a common compatible string, > "coresight-ctcu-v2", to simplify the device tree configuration for these > platforms. This is explained in writing bindings. Best regards, Krzysztof