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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b734fd80a5dsm1091952966b.36.2025.11.17.07.35.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 17 Nov 2025 07:35:56 -0800 (PST) Message-ID: Date: Mon, 17 Nov 2025 16:35:54 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 5/6] arm64: dts: qcom: x1e80100-vivobook-s15: add charge limit nvmem To: Maud Spierings , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <20251116-asus_usbc_dp-v2-0-cc8f51136c9f@hotmail.com> <20251116-asus_usbc_dp-v2-5-cc8f51136c9f@hotmail.com> <378c611b-f8c6-4f89-a3b3-6d8c22445e83@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=AKSYvs3t c=1 sm=1 tr=0 ts=691b40df cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=69EAbJreAAAA:8 a=NI52xOD4TGehLKbkATUA:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTE3MDEzMiBTYWx0ZWRfX1Hqp7Sz0+cxY vBJ0dOtQnkTQjR4dS8N2vl6bh2PWmt3Yl3DxaIC89uPHu56KUljFDEfxxedXVQsTNbPgp95zZD+ 2JRWpsHWiujoMNIhgR7uM2pP1nsq7lvV/IF1c1ttCY1v5BrVD9sNxVEsohYWTAXkcWPbuSRqQdh mnFb2M0wIyOJaiP1yDStNFOCuVjljq75nMKiWw4skSiC1gC/PbTo4HkFcxKkIT4udQHntl0vqZm 18FDvHAo9hk+BrLCBEyUO6e8FSqkKcu9ozQ8YLo0F+fukm0tyKevck7eUS5GRaTI2J+jKLLmvD/ m7YB8F15uvDUaQa7CiBZjccsPhqR3NHeyDZrcjuQv0UqvojHCPasdhKw/Ad58bImEvEkVZuiiYp Ma/AmOEIg6kxC/lVysqHWO2iHed/Qg== X-Proofpoint-ORIG-GUID: 1yZFsS2PMPY7r51k4LpoHfCUSrlFPLlL X-Proofpoint-GUID: 1yZFsS2PMPY7r51k4LpoHfCUSrlFPLlL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-17_03,2025-11-13_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 bulkscore=0 spamscore=0 adultscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511170132 On 11/17/25 3:13 PM, Maud Spierings wrote: > Hi Konrad, > > On 11/17/25 13:59, Konrad Dybcio wrote: >> On 11/16/25 11:52 AM, Maud Spierings via B4 Relay wrote: >>> From: Maud Spierings >>> >>> Add nvmem cells for getting charge control thresholds if they have >>> been set previously. >>> >>> Signed-off-by: Maud Spierings >>> --- >> >> Have you verified that e.g. >> >> connecting the charger >> setting the charge threshold >> rebooting to windows >> rebooting to windows once more for good measure >> rebooting to linux >> >> still has the settings persist? > > Hmm I have tried several things but I can't seem to get the values to stick. I the spmi-sdam driver is compiled in, I am not quite sure if I might be missing something. Hm, I wonder if Windows/UEFI overwrites these values or whether they're used by something else.. Can you set a threshold in windows and see if Linux can read back that data? Konrad