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path: root/drivers/bluetooth/hci_qca.c
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Diffstat (limited to 'drivers/bluetooth/hci_qca.c')
-rw-r--r--drivers/bluetooth/hci_qca.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index de36af63e182..73af901c2032 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1571,6 +1571,20 @@ static void qca_cmd_timeout(struct hci_dev *hdev)
mutex_unlock(&qca->hci_memdump_lock);
}
+static bool qca_prevent_wake(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ bool wakeup;
+
+ /* UART driver handles the interrupt from BT SoC.So we need to use
+ * device handle of UART driver to get the status of device may wakeup.
+ */
+ wakeup = device_may_wakeup(hu->serdev->ctrl->dev.parent);
+ bt_dev_dbg(hu->hdev, "wakeup status : %d", wakeup);
+
+ return !wakeup;
+}
+
static int qca_wcn3990_init(struct hci_uart *hu)
{
struct qca_serdev *qcadev;
@@ -1721,6 +1735,7 @@ retry:
qca_debugfs_init(hdev);
hu->hdev->hw_error = qca_hw_error;
hu->hdev->cmd_timeout = qca_cmd_timeout;
+ hu->hdev->prevent_wake = qca_prevent_wake;
} else if (ret == -ENOENT) {
/* No patch/nvm-config found, run with original fw/config */
set_bit(QCA_ROM_FW, &qca->flags);