When HCI_QUIRK_NON_PERSISTENT_SETUP is set by drivers,
it indicates that BT SoC will be completely powered OFF
during BT OFF. On next BT ON firmware must be downloaded
again. Holding UART port open during BT OFF is draining
the battery. Now during BT OFF, UART port is closed if
qurik HCI_QUIRK_NON_PERSISTENT_SETUP is set by clearing
HCI_UART_PROTO_READY proto flag. On next BT ON, UART
port is opened if HCI_UART_PROTO_READY proto flag is cleared.
Venkata Lakshmi Narayana Gubba (2):
Bluetooth: hci_serdev: Close UART port if NON_PERSISTENT_SETUP is set
Bluetooth: hci_qca: Remove duplicate power off in proto close
drivers/bluetooth/hci_qca.c | 5 ++---
drivers/bluetooth/hci_serdev.c | 36 +++++++++++++++++++++++++++++++++---
2 files changed, 35 insertions(+), 6 deletions(-)
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
During serdev unregister, hdev->shutdown is called before
proto close. Removing duplicates power OFF call.
Signed-off-by: Venkata Lakshmi Narayana Gubba <[email protected]>
---
drivers/bluetooth/hci_qca.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 20e1ded..f0d9ee3 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -693,8 +693,6 @@ static int qca_close(struct hci_uart *hu)
destroy_workqueue(qca->workqueue);
qca->hu = NULL;
- qca_power_shutdown(hu);
-
kfree_skb(qca->rx_skb);
hu->priv = NULL;
@@ -2032,8 +2030,9 @@ static int qca_serdev_probe(struct serdev_device *serdev)
static void qca_serdev_remove(struct serdev_device *serdev)
{
struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
+ struct qca_power *power = qcadev->bt_power;
- if (qca_is_wcn399x(qcadev->btsoc_type))
+ if (qca_is_wcn399x(qcadev->btsoc_type) && power->vregs_on)
qca_power_shutdown(&qcadev->serdev_hu);
else if (qcadev->susclk)
clk_disable_unprepare(qcadev->susclk);
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation