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[135.19.110.125]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6cc22961be9sm17901106d6.114.2024.10.16.06.34.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Oct 2024 06:34:27 -0700 (PDT) Subject: Re: [PATCH v3 4/5] arm64: dts: qcom: x1e80100-crd: add rtc offset to set rtc time To: Johan Hovold Cc: linux-arm-msm@vger.kernel.org, Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , open list References: <20241015004945.3676-1-jonathan@marek.ca> <20241015004945.3676-5-jonathan@marek.ca> From: Jonathan Marek Message-ID: <663cf3f6-3254-e490-d557-a12aa41a1628@marek.ca> Date: Wed, 16 Oct 2024 09:31:00 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit On 10/16/24 2:51 AM, Johan Hovold wrote: > On Mon, Oct 14, 2024 at 08:47:29PM -0400, Jonathan Marek wrote: >> See commit e67b45582c5e for explanation. > > It's good that you reference commit e67b45582c5e ("arm64: dts: qcom: > sc8280xp-crd: enable rtc") but your commit message still needs to be > self-contained and provide the explanation here in some form (e.g. > quoted or paraphrased). > > Also spell out the commit summary in parenthesis when referring to > commits as I did above. > >> Note: the 0xbc offset is arbitrary, it just needs to not be already in use. > > How did you verify that nothing is using this offset on this platform? I > assume we need someone with access to the docs to make sure it's not in > use as we did for sc8280xp. > AFAIK qcom allocate things from the start of the SDAM, so allocating from the end of the SDAM should be safe. And AFAIK this is supposed to be a general purpose HLOS (linux/windows) SDAM block, so should be mostly free to use. (its possible windows uses this offset for something, I don't know about that)