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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8ea0073117sm211208666b.71.2026.02.05.02.51.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 05 Feb 2026 02:51:05 -0800 (PST) Message-ID: Date: Thu, 5 Feb 2026 11:51:03 +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] testing! arm64: dts: qcom: decrease WiFi antenna regulator minimum to 3.0V To: David Heidelberg , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org References: <20260204-oneplus6-wifi-voltage-v1-1-ee6fd47f9d02@ixit.cz> <851db388-61dc-4916-91fa-32b96113d4aa@ixit.cz> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <851db388-61dc-4916-91fa-32b96113d4aa@ixit.cz> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjA1MDA4MCBTYWx0ZWRfX0dZsHId7bONw 331S5RhLA57J3/6OSjTiw+aeGmBWm9pbEF+jBTThPMNfo2ZLNaLsPlsptp+gjw7eAJhTQ5udGQE vcabW0xMrdZxcmu1eZbpPY+xHDNz9vCdfB4yNJqJBPmcNUZZnxoRV0yhnUrzKSSlYfoYOx+XlV3 JEBR5YXjCtzyZcbWODQnJNHHw7mpwdDsfMEJUqcom8J74XMWXPRzeiIch/vcZSTYT+CDhSZGeL1 5VKak3L1QMeVp59FDD6y/cXluGrLHjIqg2tF+RO930bizMpi3TZ8Crk3KXoGk2iIapd6eVgJSLi DFgk5MUmSfKWsxq1RAagapPMPG5u/elbz5t+Efu24EZadCVc0Aw5fxA/USItAXIhlaVhNBj8sQi k00J+9H0pELUNCzA0t9vSkoo3RFOnA2laJ9CmjrMyx5oYmFnmvAv3OrFopFIObMgMIoxvM0OWxI 0vyAfEqZiOfrRUZvz8Q== X-Authority-Analysis: v=2.4 cv=GdcaXAXL c=1 sm=1 tr=0 ts=6984761a cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=wKYZdr8hRx8ZL1f4wtIA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: j9Q1VBobDJspI02FYl9i6wwvWh7Z6a6f X-Proofpoint-GUID: j9Q1VBobDJspI02FYl9i6wwvWh7Z6a6f 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=2026-02-05_02,2026-02-05_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 malwarescore=0 bulkscore=0 phishscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602050080 On 2/5/26 10:58 AM, David Heidelberg wrote: > On 05/02/2026 10:05, Konrad Dybcio wrote: >> On 2/4/26 6:03 PM, David Heidelberg via B4 Relay wrote: >>> From: David Heidelberg >>> >>> Downstream defines minimal voltage as 3.0 V, while when OnePlus 6 was >>> introduced to Linux mainline, the value was fixed to maximum 3.3V. >>> >>> Signed-off-by: David Heidelberg >>> --- >>> Tested for ~ 1 month. Seems to work well, no visible issues anywhere. >>> --- >>>   arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 4 ++-- >>>   1 file changed, 2 insertions(+), 2 deletions(-) >>> >>> diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi >>> index 5b121ea5520f5..e950db41ce25a 100644 >>> --- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi >>> +++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi >>> @@ -307,7 +307,7 @@ vreg_l20a_2p95: ldo20 { >>>           }; >>>             vreg_l23a_3p3: ldo23 { >>> -            regulator-min-microvolt = <3300000>; >>> +            regulator-min-microvolt = <3000000>; >>>               regulator-max-microvolt = <3312000>; >>>               regulator-initial-mode = ; >>>           }; >>> @@ -320,7 +320,7 @@ vreg_l24a_3p075: ldo24 { >>>           }; >>>             vreg_l25a_3p3: ldo25 { >>> -            regulator-min-microvolt = <3300000>; >>> +            regulator-min-microvolt = <3000000>; >>>               regulator-max-microvolt = <3312000>; >> >> A datasheet tells me this is out of spec for this wireless chip > > As I don't have the datasheet, can you clarify if the 3.3 - 3.312V is the correct range which should be kept? These settings are OK. Konrad