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Fri, 04 Sep 2026 08:42:32 -0700 (PDT) X-Received: by 2002:a05:6102:1606:b0:778:9e3c:5760 with SMTP id ada2fe7eead31-78a4a9621d7mr2056895137.11.1788536552421; Fri, 04 Sep 2026 08:42:32 -0700 (PDT) Received: from QCOM-eG0v1AUPpu.na.qualcomm.com ([2a01:e0a:830:450:e90a:787f:72ea:b218]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49ce5533ffbsm160668505e9.3.2026.09.04.08.42.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Sep 2026 08:42:29 -0700 (PDT) From: Loic Poulain Date: Fri, 04 Sep 2026 17:42:21 +0200 Subject: [PATCH v6 06/11] Bluetooth: hci_qca: Set 'bt_en_available' based on pwrseq power controllability Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260904-monza-wireless-v6-6-d8c5042b3efd@oss.qualcomm.com> References: <20260904-monza-wireless-v6-0-d8c5042b3efd@oss.qualcomm.com> In-Reply-To: <20260904-monza-wireless-v6-0-d8c5042b3efd@oss.qualcomm.com> To: Manivannan Sadhasivam , Bartosz Golaszewski , Marcel Holtmann , Luiz Augusto von Dentz , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-bluetooth@vger.kernel.org, devicetree@vger.kernel.org, Manivannan Sadhasivam , Loic Poulain , Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Authority-Analysis: v=2.4 cv=F+xnsKhN c=1 sm=1 tr=0 ts=6a9ae6e9 cx=c_pps a=N1BjEkVkxJi3uNfLdpvX3g==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=8YyhkPy0JF_pzLATneMA:9 a=QEXdDO2ut3YA:10 a=crWF4MFLhNY0qMRaF8an:22 X-Proofpoint-ORIG-GUID: cw7-SY6UXsv-CIdskbDHmBBVdLJlAfi9 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA0MDE0MyBTYWx0ZWRfX8hU2HYMkpmA2 y36dPIUF1lVVcHpAHtsWu07IkfpQXAcGoQ6LOkIdAcxHoJF7KILpRyg5eFhxTMKwqUDS3XwEsid e4G7dNrl5WMK2j+FoISetLEEypni6KE= X-Proofpoint-GUID: cw7-SY6UXsv-CIdskbDHmBBVdLJlAfi9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA0MDE0MyBTYWx0ZWRfX6ZXt5XCgPPyq zS3ZtPojNdjEmLk0P1d/XiUNv8TMX96cyXdcpiHBpnjf60WKmPhbpugWgfykJGVChvTqnNSLNmw zXfQJYER9P770OJmR0FL2dtWOF7edl+Ktap8kpZ9ZXevhHtBNhDkcSM+VOSJ/lNQD9j9bUpps0n YdZrjWF1Mc1MMlhQa4SZBgmL3nARzFlKfRE5SlssmepLnFFfTqW2eyfB2RhXFOYACkWWfqaNlxF Jj3/Ygx1WUcZVHdVZhw3SJGQrOZ0Cx4gcMEpAQPl/FTl9yp7p912kyk2559pCq8lz+dW5tT5Rnl oQ3sc1zvDtiy9x7IM1F/IG+gwUU25QWbP18PvuXUzHEx50YAfB7qNDNpdbGYnlC6gf/irkUjL2L UKki+0OBOxhyj1+bkZdasSatISDdQSXEr2yfC0bS3+7o4ww6h/5oS+bUAfQMKcI3EwllOkfefLg eKtQwVQWRMT5aHSpq0w== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-04_04,2026-09-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 adultscore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609040143 A Bluetooth device only needs the non-persistent setup if the host can gate its power, so that it is actually reset on the next power-on. When the power is controlled by a power sequencer, whether the host can gate it depends on the hardware wiring, e.g. the presence of the BT_EN or W_DISABLE2# line. Query the generic pwrseq_is_controllable() helper whenever the BT power comes from a sequencer, regardless of which provider it is (M2, WCN, ...). If the power is not controllable, clear 'bt_en_available' so that HCI_QUIRK_NON_PERSISTENT_SETUP is not set. This is based on Manivannan's original patch that keyed the decision off the W_DISABLE2# device tree property, it now uses the generic pwrseq helper and handles the always-on case. Reviewed-by: Manivannan Sadhasivam Reviewed-by: Bartosz Golaszewski Reviewed-by: Manivannan Sadhasivam Signed-off-by: Loic Poulain --- drivers/bluetooth/hci_qca.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index f7a20138cb742e8f6ea51d565aa8da8751f21f37..9d27cd851b4a685ce42201b0d40ca6ecbeec9cb1 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -2551,7 +2551,20 @@ static int qca_serdev_probe(struct serdev_device *serdev) return PTR_ERR(qcadev->susclk); } } - + + if (qcadev->bt_power->pwrseq) { + bt_en_available = pwrseq_is_controllable(qcadev->bt_power->pwrseq); + if (!bt_en_available) { + /* The host cannot gate the BT power individually. + * Treat it as always-on and drop the pwrseq handle. + * The descriptor itself is still released by devres, + * so dropping the handle here is not a leak. + */ + pwrseq_power_on(qcadev->bt_power->pwrseq); + qcadev->bt_power->pwrseq = NULL; + } + } + err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto); if (err) { BT_ERR("serdev registration failed"); -- 2.34.1