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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8037f09149sm3924692966b.47.2025.12.31.04.09.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 31 Dec 2025 04:09:53 -0800 (PST) Message-ID: Date: Wed, 31 Dec 2025 13:09:49 +0100 Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 08/14] arm64: dts: qcom: sdm845-db845c: specify power for WiFi CH1 To: Dmitry Baryshkov , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bartosz Golaszewski , Marcel Holtmann , Luiz Augusto von Dentz , Jeff Johnson , Bjorn Andersson , Konrad Dybcio , Manivannan Sadhasivam , Vinod Koul , Balakrishna Godavarthi , Matthias Kaehlcke Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-wireless@vger.kernel.org, ath10k@lists.infradead.org, linux-pm@vger.kernel.org, Krzysztof Kozlowski References: <20251231-wcn3990-pwrctl-v1-0-1ff4d6028ad5@oss.qualcomm.com> <20251231-wcn3990-pwrctl-v1-8-1ff4d6028ad5@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20251231-wcn3990-pwrctl-v1-8-1ff4d6028ad5@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjMxMDEwNiBTYWx0ZWRfXwq5wN4WmaxeE FT4qqdUFzhOVRDhJT6ZZEfbXotVIudATFBjNJMPZOJyLbi+1tZdm5AKE9W4LCBgJB3P5gOabNxQ 5qzPDKaDwKQMXsdgSZrqqMpmf5W0/bB796uAOqXFBVuv/fiildJMvlYGTMqoORYYbKbRUpkWVs7 xC3TN+ZNpiAaEQ7Ui4MgiDOKkpSp6/k6Mac7qHhHSz4wMXIPuVTFEOFLNfeQXaGyvEcQRzEVahl qYcqK7cRZ4+3dZ4p77P6SlbgFzelyPJyTX1v4839jhHqEAMeH28JbKXs0xek3+Rfdyqw2frAChY zw3M4awgXTlNa/TJeCat/8+5P6RlMKyoYMHwjbpy8juw8FnivMYcr8GuNe3c8oFwmx1RtK0Vsb4 OjR+wneEk5iC5JERfMUCeZ1L6QfyzsjXzZD4gyokkIpMC7ijRfIOxC+XBwHZ9acJTyuJPpT35e3 ESUA0lNlIDSMfdhEU8g== X-Proofpoint-ORIG-GUID: VzGJiyceWV7Ji_B7EB54ne_cHFHJG3ev X-Authority-Analysis: v=2.4 cv=BuuQAIX5 c=1 sm=1 tr=0 ts=69551293 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=DbB6eazJVb8MnLPbLtEA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-GUID: VzGJiyceWV7Ji_B7EB54ne_cHFHJG3ev 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=2025-12-31_03,2025-12-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 malwarescore=0 lowpriorityscore=0 spamscore=0 adultscore=0 bulkscore=0 suspectscore=0 clxscore=1015 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512310106 On 12/31/25 12:35 AM, Dmitry Baryshkov wrote: > Specify power supply for the second chain / antenna output of the > onboard WiFi chip. > > Fixes: 3f72e2d3e682 ("arm64: dts: qcom: Add Dragonboard 845c") > Signed-off-by: Dmitry Baryshkov > --- I don't have schematics nearby, but jfyi downstream doesn't do that > arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > index ad283a79bcdb..5118b776a9bb 100644 > --- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > @@ -379,6 +379,12 @@ vreg_l21a_2p95: ldo21 { > regulator-initial-mode = ; > }; > > + vreg_l23a_3p3: ldo23 { > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3312000>; Do we benefit from the 0.012V spread? (i.e. is there anything else on this rail?) Konrad