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[199.106.103.254]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2c10b17d1ddsm17511082eec.11.2026.03.25.03.23.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 25 Mar 2026 03:23:51 -0700 (PDT) Message-ID: Date: Wed, 25 Mar 2026 18:23:46 +0800 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 v3] Bluetooth: hci_qca: disable power control for WCN7850 when bt_en is not defined To: Luiz Augusto von Dentz , Bartosz Golaszewski Cc: Marcel Holtmann , linux-arm-msm@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, cheng.jiang@oss.qualcomm.com, quic_chezhou@quicinc.com, wei.deng@oss.qualcomm.com, jinwang.li@oss.qualcomm.com, mengshi.wu@oss.qualcomm.com References: <20260324023016.3889062-1-shuai.zhang@oss.qualcomm.com> Content-Language: en-US From: Shuai Zhang In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI1MDA3MyBTYWx0ZWRfX3O4G08pDoODl ymJdN28UvoEGohAISbls7Oq6iBflGUTSJzoAqiusFUY/0RnS+DD+eKenD05V/DhkjJ/p8+HqMV1 rs/19c8ZfCGOpsszYj4l7TtKXcbpXcxqv3gVxL1n2DR4HRIdJwPkvsgZj2pXjrNyLEevT/d6mFD xDwxZmRKNzkdTW7m0FqUoWFTqQ4Q8Jbtz3CKv6BSrqOEGKE691SoZD7c8UZri4BVyCSBn5Lthn9 WfRLobK7KmfNbC3sX/3njPbCHLJ4C6CsDRKBaLZhcN8OauohQvmAYvbe+/4QX9MmsjhQaP4ALa1 hvyj03Ao5gpEPNSy4t8U0seQbCjQb2qFKvdeMgZF3DOWE2vbak0xNq/FuwiFy7/JcZ26IGBtqnk WVvPCpQRydJ8rJkKKeAhNYydgrim3t2wbqrzGO9MmWKiWfOZCMr3GbTF/J0uUPqL3Jtw5gOaOSK 4MLDzt+anpV/MW5NoVQ== X-Proofpoint-GUID: zivUkOMsDaSVHEIFGQs_gHYdK59fNwtr X-Proofpoint-ORIG-GUID: zivUkOMsDaSVHEIFGQs_gHYdK59fNwtr X-Authority-Analysis: v=2.4 cv=O7w0fR9W c=1 sm=1 tr=0 ts=69c3b7b8 cx=c_pps a=PfFC4Oe2JQzmKTvty2cRDw==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=c92rfblmAAAA:8 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=LITGez8UpPA1zbsMazEA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=6Ab_bkdmUrQuMsNx7PHu:22 a=GvGzcOZaWPEFPQC_NcjD:22 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=2026-03-25_03,2026-03-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 lowpriorityscore=0 suspectscore=0 spamscore=0 malwarescore=0 priorityscore=1501 impostorscore=0 bulkscore=0 phishscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603250073 Hi Luiz On 3/25/2026 4:01 AM, Luiz Augusto von Dentz wrote: > Hi Shuai, > > On Tue, Mar 24, 2026 at 6:33 AM Bartosz Golaszewski wrote: >> On Tue, Mar 24, 2026 at 3:30 AM Shuai Zhang >> wrote: >>> On platforms using an M.2 slot with both UART and USB support, bt_en is >>> pulled high by hardware. In this case, software-based power control >>> should be disabled. The current platforms are Lemans-EVK and Monaco-EVK. >>> >>> Add QCA_WCN7850 to the existing condition so that power_ctrl_enabled is >>> cleared when bt_en is not software-controlled (or absent), aligning its >>> behavior with WCN6750 and WCN6855 >>> >>> Signed-off-by: Shuai Zhang >>> --- >> Reviewed-by: Bartosz Golaszewski > Let's check if the following is true before I push it: > > https://sashiko.dev/#/patchset/20260324023016.3889062-1-shuai.zhang%40oss.qualcomm.com The question raised by this check is whether |qca_power_shutdown()| properly considers WCN7850. WCN7850 does not need any special handling and is intentionally covered by the default case in |qca_power_shutdown()|. Thanks, Shuai