Commit bee5395c authored Jul 04, 2022 by Ying Hsu Committed by Luiz Augusto von Dentz Jul 21, 2022

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 4539ca67 ("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: 4539ca67 ("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>

parent 6828b583

drivers/bluetooth/hci_serdev.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -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))