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Bluetooth: mt7921s: fix bus hang with wrong privilege

Browse source 
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: c603bf1f94 ("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>
This commit is contained in:
Mark Chen 2022-01-12 15:39:13 +08:00 committed by Marcel Holtmann
parent c7e301d7c8
commit 752aea5848
1 changed files with 8 additions and 0 deletions
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8
drivers/bluetooth/btmtksdio.c
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@ -960,6 +960,14 @@ static int btmtksdio_setup(struct hci_dev *hdev)
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;
/* Enable SCO over I2S/PCM */
err = btmtksdio_sco_setting(hdev);
if (err < 0) {