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[90.182.211.1]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a027698f13sm324157425e9.1.2026.10.05.05.21.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Oct 2026 05:21:49 -0700 (PDT) From: Loic Poulain Date: Mon, 05 Oct 2026 14:21:33 +0200 Subject: [PATCH v7 3/8] Bluetooth: hci_qca: Set 'bt_en_available' based on pwrseq power controllability Precedence: bulk X-Mailing-List: devicetree@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: <20261005-monza-wireless-v7-3-5a6de7662dcb@oss.qualcomm.com> References: <20261005-monza-wireless-v7-0-5a6de7662dcb@oss.qualcomm.com> In-Reply-To: <20261005-monza-wireless-v7-0-5a6de7662dcb@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-Proofpoint-GUID: WNkJyaKqApTUgk2E4Xn3GJgxN2r3orQF X-Proofpoint-ORIG-GUID: WNkJyaKqApTUgk2E4Xn3GJgxN2r3orQF X-Authority-Analysis: v=2.4 cv=A6b5rKWG c=1 sm=1 tr=0 ts=6ac39660 cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=zRh97aRZNhiOMYVz81Er1w==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=8YyhkPy0JF_pzLATneMA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDA1MDA0OCBTYWx0ZWRfX911P13+eO1VL wKwr4P8tLhrQaNGgQAIjIf8stN3ziu5cjRtNCgM8L2LKDKgaCVNtp1dwKXRKoKLwqIx2+GDT1xu gVq5KegWiCFfmtjbxzrevy+YPWxbIQlUtAdjgyl60rjpPRKAzuKsuWwU6ilvsK71Q60PB7atF9r s+hViqiwuxoMZjGBU4b5JnSjvvia6CmXrGuZMPtyQ/2kEyFhces3BICa+HIcdkfxEdel+2X8KZL TsyEn5yRpzXtbONvphNNIm11yvH0qWGn37okIpRli3XHoGaumVfyw6Uiofgc6aQ+GNEzQP2DXEg Y9JpuhyD63ZypxSubdEJj4ISdkKlMq7Lb04DOUXESjWzDiiM79o7dca8JHQEGaSSBtzjBZFrNIM Tc6/Z1PQ+ULVx1haXskjdFERfLFZckfF6AcBJP2aEikn8RDwEqS+iFnkc/lJtWt5zxcNorEcrcw Rxp3+DaA/UNqJcDtusg== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDA1MDA0OCBTYWx0ZWRfX+SHLbsHb00Be ZSr9izo550Ehs+dWssEn5Jk9ZEXntmogAVOQdcgyAWAdS4aXF7PfvwImIPrs996dARJ/2/jSvKz 3LRQyJdkzvCl1Ks8iLNGMUEtLzofeX0= 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=2026-10-05_03,2026-10-05_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 phishscore=0 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610050048 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 f53f95601693dcd8356b4b825776317061050f1b..20d8c5e890a8903a07c3e7e37d037c44d383e8df 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -2557,7 +2557,20 @@ 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