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| author | Ying Hsu <yinghsu@chromium.org> | 2022-07-04 18:33:24 +0800 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2022-07-21 17:09:48 -0700 |
| commit | bee5395ced44c5a312348557eb2dfb0c2a7bfaa2 (patch) | |
| tree | 44e698a4106871ff477b45b1a1c86b5cbb9d584e /drivers/bluetooth | |
| parent | 6828b58307a92d6b626d4d1421ab7db6db125ba5 (diff) | |
| download | lwn-bee5395ced44c5a312348557eb2dfb0c2a7bfaa2.tar.gz lwn-bee5395ced44c5a312348557eb2dfb0c2a7bfaa2.zip | |
Bluetooth: Add default wakeup callback for HCI UART driver
Bluetooth HCI devices indicate if they are able to wakeup in the wakeup
callback since 'commit 4539ca67fe8e ("Bluetooth: Rename driver
.prevent_wake to .wakeup")'. This patch adds a default wakeup callback
for Bluetooth HCI UAR devices. It assumes Bluetooth HCI UART devices are
wakeable for backward compatibility. For those who need a customized
behavior, one can override it before calling hci_uart_register_device().
Fixes: 4539ca67fe8e ("Bluetooth: Rename driver .prevent_wake to .wakeup")
Signed-off-by: Ying Hsu <yinghsu@chromium.org>
Reviewed-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/hci_serdev.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_serdev.c b/drivers/bluetooth/hci_serdev.c index 4cda890ce647..c0e5f42ec6b7 100644 --- a/drivers/bluetooth/hci_serdev.c +++ b/drivers/bluetooth/hci_serdev.c @@ -231,6 +231,15 @@ static int hci_uart_setup(struct hci_dev *hdev) return 0; } +/* Check if the device is wakeable */ +static bool hci_uart_wakeup(struct hci_dev *hdev) +{ + /* HCI UART devices are assumed to be wakeable by default. + * Implement wakeup callback to override this behavior. + */ + return true; +} + /** hci_uart_write_wakeup - transmit buffer wakeup * @serdev: serial device * @@ -342,6 +351,8 @@ int hci_uart_register_device(struct hci_uart *hu, hdev->flush = hci_uart_flush; hdev->send = hci_uart_send_frame; hdev->setup = hci_uart_setup; + if (!hdev->wakeup) + hdev->wakeup = hci_uart_wakeup; SET_HCIDEV_DEV(hdev, &hu->serdev->dev); if (test_bit(HCI_UART_NO_SUSPEND_NOTIFIER, &hu->flags)) |