From: Mark Chen mark-yw.chen@mediatek.com
[ Upstream commit 752aea58489fd42f5c54dc50cb098d19e486ae61 ]
According to chip hw flow, mt7921s need to re-acquire privilege again before normal running. Otherwise, the bus may be stuck in an abnormal status.
Fixes: c603bf1f94d0 ("Bluetooth: btmtksdio: add MT7921s Bluetooth support") Co-developed-by: Sean Wang sean.wang@mediatek.com Signed-off-by: Sean Wang sean.wang@mediatek.com Signed-off-by: Mark Chen mark-yw.chen@mediatek.com Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bluetooth/btmtksdio.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index d4e2541a4873..c05578b52d33 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -872,6 +872,15 @@ static int btmtksdio_setup(struct hci_dev *hdev) err = mt79xx_setup(hdev, fwname); if (err < 0) return err; + + err = btmtksdio_fw_pmctrl(bdev); + if (err < 0) + return err; + + err = btmtksdio_drv_pmctrl(bdev); + if (err < 0) + return err; + break; case 0x7663: case 0x7668: