From df332800a914e9fd97b83aa63832979227fd8a8d Mon Sep 17 00:00:00 2001 From: Sean Wang Date: Mon, 27 Jun 2022 07:27:36 +0800 Subject: [PATCH] Bluetooth: btmtksdio: Add in-band wakeup support Commit ce64b3e94919 ("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: Yake Yang Signed-off-by: Yake Yang Signed-off-by: Sean Wang Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Luiz Augusto von Dentz --- drivers/bluetooth/btmtksdio.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index d6700efcfe8c..f9a3444753c2 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -1282,6 +1282,13 @@ err: 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);