Commit df332800 authored by Sean Wang's avatar Sean Wang Committed by Luiz Augusto von Dentz
Browse files

Bluetooth: btmtksdio: Add in-band wakeup support 



Commit ce64b3e9 ("Bluetooth: mt7921s: Support wake on bluetooth")
adds the wake on bluethooth via a dedicated GPIO.

Extend the wake-on-bluetooth to use the SDIO DAT1 pin (in-band wakeup),
when supported by the SDIO host driver.

Co-developed-by: default avatarYake Yang <yake.yang@mediatek.com>
Signed-off-by: default avatarYake Yang <yake.yang@mediatek.com>
Signed-off-by: default avatarSean Wang <sean.wang@mediatek.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
parent d7b2fdfb

drivers/bluetooth/btmtksdio.c

+15 −0
Original line number Diff line number Diff line
@@ -1282,6 +1282,13 @@ static void btmtksdio_cmd_timeout(struct hci_dev *hdev) 
	hci_reset_dev(hdev);

}



static bool btmtksdio_sdio_inband_wakeup(struct hci_dev *hdev)

{

	struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);



	return device_may_wakeup(bdev->dev);

}



static bool btmtksdio_sdio_wakeup(struct hci_dev *hdev)

{

	struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
@@ -1349,6 +1356,14 @@ static int btmtksdio_probe(struct sdio_func *func, 
	hdev->shutdown = btmtksdio_shutdown;

	hdev->send     = btmtksdio_send_frame;

	hdev->wakeup   = btmtksdio_sdio_wakeup;

	/*

	 * If SDIO controller supports wake on Bluetooth, sending a wakeon

	 * command is not necessary.

	 */

	if (device_can_wakeup(func->card->host->parent))

		hdev->wakeup = btmtksdio_sdio_inband_wakeup;

	else

		hdev->wakeup = btmtksdio_sdio_wakeup;

	hdev->set_bdaddr = btmtk_set_bdaddr;



	SET_HCIDEV_DEV(hdev, &func->dev);