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Wed, 25 Mar 2026 22:15:52 -0700 (PDT) X-Received: by 2002:a05:6300:95:b0:39b:8b59:4ec9 with SMTP id adf61e73a8af0-39c4a794ecamr4511539637.0.1774502152377; Wed, 25 Mar 2026 22:15:52 -0700 (PDT) Received: from [10.231.195.100] ([114.94.8.21]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82c7d388f92sm1630877b3a.38.2026.03.25.22.15.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 25 Mar 2026 22:15:51 -0700 (PDT) Message-ID: Date: Thu, 26 Mar 2026 13:15:44 +0800 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 4/6] arm64: dts: qcom: kaanapali-mtp: Enable bluetooth and Wifi To: Dmitry Baryshkov Cc: Jingyi Wang , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , aiqun.yu@oss.qualcomm.com, tingwei.zhang@oss.qualcomm.com, trilok.soni@oss.qualcomm.com, yijie.yang@oss.qualcomm.com, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, 20260224-knp-dts-misc-v6-0-79d20dab8a60@oss.qualcomm.com References: <20260322-knp-pmic-dt-v1-0-70bc40ea4428@oss.qualcomm.com> <20260322-knp-pmic-dt-v1-4-70bc40ea4428@oss.qualcomm.com> <13745334-c2dd-4a97-90de-a5ee18cff6a7@oss.qualcomm.com> <0279f334-95ed-4df8-9e42-749fd854c551@oss.qualcomm.com> <3xb6ya4zxhmaode3u3al5r4g3rfzlq2ifbyodvwtr3qgt34pwc@ia2xqfaeufd2> Content-Language: en-US From: Zijun Hu In-Reply-To: <3xb6ya4zxhmaode3u3al5r4g3rfzlq2ifbyodvwtr3qgt34pwc@ia2xqfaeufd2> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=M9hA6iws c=1 sm=1 tr=0 ts=69c4c109 cx=c_pps a=oF/VQ+ItUULfLr/lQ2/icg==:117 a=Uz3yg00KUFJ2y2WijEJ4bw==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=1mDv_yBIlbhTikghve4A:9 a=QEXdDO2ut3YA:10 a=3WC7DwWrALyhR5TkjVHa:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI2MDAzOCBTYWx0ZWRfXxChGqFhb7InB sK+Cn3UHhXO5diCWf5OsTpYWcreXx1gYIzgitHeDO6krqeBR8U/q8T8kdHT78mFDlAyHZK5/hoT RjOWBW0D9oVbpFE1w2Y2oJahVLiO1KTWSXiTbLrKkyhTm+67bcs2tjNz3w3D7+Yt0PrOKL+2nTo +gMTN8/2olUyumPui2htOzkpQfOfJis8oXZhbmq7FGqT64eLgprRrtHzRly7/q1fOiQgtuHZHRT GCwRiyfAiRHWeIK2kKge/lRP5w6UxZaZMaqNP6HydLgUClxEJlwgyvoIx0wOIlSHytnhPz9oBmO 582OtUOT6ZJ8ewtTzoVU/o8kwX+C2Zw5UaeWtTD9m27L9Ou6V4HP4iN/OZ2C1EJPfAbIeGlaJ69 NM6+bcA4i/yOqdEG9qCMjMRzCgG9RJUOACw7mWI87tQOW4btWjcR1hP/DUiusuoHoqf/IKrqrqB WJMhENu79OlOY1J2UHA== X-Proofpoint-GUID: EKfd_859Fzwx76TBFTg1sF86yo0EDU-R X-Proofpoint-ORIG-GUID: EKfd_859Fzwx76TBFTg1sF86yo0EDU-R 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_01,2026-03-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 bulkscore=0 impostorscore=0 spamscore=0 adultscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603260038 On 3/26/2026 12:10 PM, Dmitry Baryshkov wrote: >> 3/25/2026 7:40 PM, Dmitry Baryshkov wrote: >>>> On 3/25/2026 3:08 PM, Dmitry Baryshkov wrote: >>>>> On Wed, Mar 25, 2026 at 02:40:19PM +0800, Zijun Hu wrote: >>>>>> On 3/24/2026 9:16 AM, Dmitry Baryshkov wrote: >>>>>>>> + >>>>>>>> + wcn7850-pmu { >>>>>>>> + compatible = "qcom,wcn7850-pmu"; >>>>>>>> + >>>>>>>> + pinctrl-0 = <&bt_default>, <&sw_ctrl_default>, <&wlan_en>; >>>>>>>> + pinctrl-names = "default"; >>>>>>>> + >>>>>>>> + bt-enable-gpios = <&pmh0104_j_e1_gpios 5 GPIO_ACTIVE_HIGH>; >>>>>>>> + wlan-enable-gpios = <&tlmm 16 GPIO_ACTIVE_HIGH>; >>>>>>> swctrl-gpios? >>>>>> it is '<&sw_ctrl_default>' within 'pinctrl-0' above. >>>>>> the input pin is not used by power sequencing driver. >>>>>> just give it some default configurations here. >>>>> Please don't mix hardware description and the driver. If the pin is >>>>> wired, let's describe it in DT. >>>>> >>>> give comments about that pin in this dts file ? >>>> or give a seperated patch to describe the pin in DT binding schema of "qcom,wcn7850-pmu"? >>> It is there, as far as I remember. >>> >>> $ grep swctrl Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.yaml >>> swctrl-gpios: >> swctrl-gpios may be not applicable for 'qcom,wcn7850-pmu' since there is no 'qcom,wcn7850-pmu' node >> which configures 'swctrl-gpios' within upstream DT tree. > It's a wrong way to check it. > Instead follow these steps: > - Is the pin defined in the datasheet? datasheet define this pin SW_CTRL with description "Switch request to the external PMU between active and sleep mode" > - Is the pin defined in the schema? schema define property 'swctrl-gpios' with description "GPIO line indicating the state of the clock supply to the BT module" > - Is the pin wired in the hardware? pin SW_CTRL is wired in hardware. i have below confusions about 'swctrl-gpios' of 'qcom,wcn7850-pmu' which WCN7850 pin is 'swctrl-gpios' mean for ? Why to introduce 'swctrl-gpios' ? what problem does it solve ? how to solve the problem ?