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([2a01:e0a:82c:5f0:ad62:b2f0:914c:91ae]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-390cd8fbc31sm5768155f8f.85.2025.02.26.07.06.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Feb 2025 07:06:00 -0800 (PST) From: Loic Poulain To: neeraj.sanjaykale@nxp.com, marcel@holtmann.org, robh@kernel.org, krzk+dt@kernel.org Cc: amitkumar.karwar@nxp.com, conor+dt@kernel.org, linux-bluetooth@vger.kernel.org, devicetree@vger.kernel.org, Loic Poulain Subject: [PATCH 1/2] Bluetooth: btnxpuart: Add VIN regulator support Date: Wed, 26 Feb 2025 16:05:52 +0100 Message-Id: <20250226150553.1015106-1-loic.poulain@linaro.org> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 As bluetooth controller is usually part of a WiFi/BT combo chip, it is important that each driver references the common supply. This prevents bluetooth to be powered down if WiFi driver is not loaded or removed. Signed-off-by: Loic Poulain --- drivers/bluetooth/btnxpuart.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c index 4f2f429c9800..fc313559c2aa 100644 --- a/drivers/bluetooth/btnxpuart.c +++ b/drivers/bluetooth/btnxpuart.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -1522,6 +1523,11 @@ static int nxp_serdev_probe(struct serdev_device *serdev) { struct hci_dev *hdev; struct btnxpuart_dev *nxpdev; + int ret; + + ret = devm_regulator_get_enable(&serdev->dev, "vin"); + if (ret) + return dev_err_probe(&serdev->dev, ret, "Failed to enable VIN\n"); nxpdev = devm_kzalloc(&serdev->dev, sizeof(*nxpdev), GFP_KERNEL); if (!nxpdev)