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Bluetooth: Add default wakeup callback for HCI UART driver 

[ Upstream commit bee5395ced ]

Bluetooth HCI devices indicate if they are able to wakeup in the wakeup
callback since 'commit 4539ca67fe ("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: 4539ca67fe ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ying Hsu 2022-07-04 18:33:24 +08:00 committed by Greg Kroah-Hartman
parent 5910eee752
commit aacbdca35a
1 changed files with 11 additions and 0 deletions
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11
drivers/bluetooth/hci_serdev.c
View File

@ -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))