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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-65a3cf38c80sm1709186a12.21.2026.02.12.04.07.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Feb 2026 04:07:27 -0800 (PST) Message-ID: <0f2fc3b0-3263-490f-ad35-24651a800f11@oss.qualcomm.com> Date: Thu, 12 Feb 2026 13:07:25 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] arm64: dts: qcom: x1-dell-thena: remove i2c20 (battery SMBus) and reserve its pins To: Val Packett , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Laurentiu Tudor , Bryan O'Donoghue Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260210175001.7691-1-val@packett.cool> <20260210175001.7691-2-val@packett.cool> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260210175001.7691-2-val@packett.cool> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: EABWiUqMluatPIZXYQ6Prn1B-A1vzfAH X-Proofpoint-GUID: EABWiUqMluatPIZXYQ6Prn1B-A1vzfAH X-Authority-Analysis: v=2.4 cv=XvX3+FF9 c=1 sm=1 tr=0 ts=698dc281 cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=EUspDBNiAAAA:8 a=n2RZqRzcAogvZMCmR6YA:9 a=QEXdDO2ut3YA:10 a=iYH6xdkBrDN1Jqds4HTS:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjEyMDA5MCBTYWx0ZWRfXwAgDb0lxpMCB vAJDNKzJFdjFpgMkDEwQPJg363YwyXV6eLUB+yeASJ8+163z7vYaQDiO0CYaa1ITjDEGx0x1iLN RzTtVydOB3QUuW3k64WVsM4Jg3qEc9I7MiXWx5u4+Hev59IHYtB13m7A3gdfoCpNA4SF1kMgOyC Fm52j+MqpyAw7C90mIn42FwX1qvsC2Ab/TTpRiuPjMD1MCqoZ1JIMOwxAxEMqTBNjjIqRpK/tS/ aOrxwuxpNNxtPaFlZQ9k3eYB+f2PZEcrFyJXtZMMCj2qFs28NZiEwhlREUOzbcqbH4iBEdVwYZC 4zociBc1Owd53PSLAzVI2ccaMxte4l5kh3nUIefYK1YWR1HNjny17JL0ZIEbpiLU6hAuIl9pux8 QtwZCLXxrP6weYTptwH7aWvRhP4h7a5i571UKO1aHKOLCu1mkLwPi9SCLD3XBbudS9lMGYtyMuy /1gQhElnvQprprJaSJA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-12_03,2026-02-11_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 malwarescore=0 adultscore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 impostorscore=0 clxscore=1015 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602120090 On 2/10/26 6:45 PM, Val Packett wrote: > i2c20 is used by the battmgr service on the ADSP to communicate with the > SBS interface of the battery. Initializing it from Linux would break the > battmgr functionality when booted in EL2. Mark those pins as reserved. > > Fixes: e7733b42111c ("arm64: dts: qcom: Add support for Dell Inspiron 7441 / Latitude 7455") > Signed-off-by: Val Packett > --- > Wow.. I was pulling my hair out trying to figure out why I had the "broken battmgr in EL2" > issue that absolutely no one else had on other laptops, turns out I did it to myself. > --- It's good you found it.. Reviewed-by: Konrad Dybcio Konrad