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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9b203ef95csm87469966b.52.2026.03.26.02.01.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 26 Mar 2026 02:01:47 -0700 (PDT) Message-ID: Date: Thu, 26 Mar 2026 10:01:43 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 7/8] arm64: dts: qcom: sdm845-db845c: describe WiFi/BT properly To: Dmitry Baryshkov , David Heidelberg Cc: Bjorn Andersson , Konrad Dybcio , Vinod Koul , linux-arm-msm@vger.kernel.org, Liam Girdwood , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Luiz Augusto von Dentz , Rob Herring , linux-bluetooth@vger.kernel.org, Balakrishna Godavarthi , Matthias Kaehlcke , linux-wireless@vger.kernel.org, Jeff Johnson , ath10k@lists.infradead.org, linux-pm@vger.kernel.org, Bartosz Golaszewski , Krzysztof Kozlowski , Mark Brown , Krzysztof Kozlowski , Bartosz Golaszewski , Marcel Holtmann , Conor Dooley , Manivannan Sadhasivam References: <20260119-wcn3990-pwrctl-v3-0-948df19f5ec2@oss.qualcomm.com> <20260119-wcn3990-pwrctl-v3-7-948df19f5ec2@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=SMZPlevH c=1 sm=1 tr=0 ts=69c4f5fe cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=Mao_WS8moKRl95PynMsA:9 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI2MDA2NSBTYWx0ZWRfX+mh7kJtCbX3l 15W0k4P3+VhuwkS81J++b8CK8Z67mbld7omlsfp4/1bqAyxn1ZAZgeV4ZVhe8KJdIkrRnWpm6hV wRfVTF4GXOH2GjFrLID9hEDGsLyXkVWiSk/khkjU3QxEJfafemBSa3TyHM3IfjaKgwxe52LfAaz /twcFre/+Fyst5iYuMEx88EL7ipyVN7skvrzJzfMiUrh+fq2WIw9OVjfEVbiDLrvtQ/7nHQEcoK kWvzKxsyG8u5x5kmwFfAxs5jKNuXJ7bzKd8dgViKWVad1O4XE5Zqmku+jR9+82LMvs1QFdKjFpt PKexBxbDzqd2fBk2aXW8R5qwwcLRqjw32NXAvAJ0olsriyUehgoW5jmwaIdQGII/HMRIHUZ4WQY NNh964WrbJos3Rm/VSUG3SULRqboUX4kv9DPw6OMfFIBA/WnPP0E1IlqRZYlKTdo00O13AvizJ6 5w6jHwS2PVay+ZSobfw== X-Proofpoint-GUID: KVL2DQcfeg3kYSUmlxbAns-pSoVIGJM1 X-Proofpoint-ORIG-GUID: KVL2DQcfeg3kYSUmlxbAns-pSoVIGJM1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-26_02,2026-03-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 bulkscore=0 impostorscore=0 spamscore=0 clxscore=1015 adultscore=0 phishscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603260065 On 3/26/26 2:59 AM, Dmitry Baryshkov wrote: > On Thu, 26 Mar 2026 at 02:02, David Heidelberg wrote: >> >> On 19/01/2026 18:08, Dmitry Baryshkov wrote: >> >> [...] >> >>> + wcn3990-pmu { >>> + compatible = "qcom,wcn3990-pmu"; >>> + >>> + pinctrl-0 = <&sw_ctrl_default>; >>> + pinctrl-names = "default"; >>> + >>> + vddio-supply = <&vreg_s4a_1p8>; >>> + vddxo-supply = <&vreg_l7a_1p8>; >>> + vddrf-supply = <&vreg_l17a_1p3>; >>> + vddch0-supply = <&vreg_l25a_3p3>; >>> + vddch1-supply = <&vreg_l23a_3p3>; >>> + >>> + swctrl-gpios = <&pm8998_gpios 3 GPIO_ACTIVE_HIGH>; >> >> Do you know if the GPIO is common for whole sdm845, or it's only recommended as >> reference design, or nothing? >> >> I did test defaulting to GPIO 3 on Pixel 3 and WiFi works as before, but since >> previous downstream kernel didn't touched GPIO 3 at all, I'm worried about >> toggling unrelated GPIO. > > It is an input-only GPIO, but nevertheless, if you are not sure, just skip it. I think you should be able to observe its state and deduce based on that On a sidenote, 99.5% of reference design choices seem to hold true on at least 90% of devices Konrad