diff mbox series

[1/2] Bluetooth: btnxpuart: Add VIN regulator support

Message ID 20250226150553.1015106-1-loic.poulain@linaro.org
State New
Headers show
Series [1/2] Bluetooth: btnxpuart: Add VIN regulator support | expand

Commit Message

Loic Poulain Feb. 26, 2025, 3:05 p.m. UTC 
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 <loic.poulain@linaro.org>
---
 drivers/bluetooth/btnxpuart.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

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 <linux/crc32.h>
 #include <linux/string_helpers.h>
 #include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -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)