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Bluetooth: mt7921s: fix bus hang with wrong privilege

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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 <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Signed-off-by: Mark Chen <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
This commit is contained in:
Mark Chen authored and Marcel Holtmann committed 2022-01-21 23:49:27 +01:00
1 parent c7e301d7c8
commit 752aea5848
1 file changed
+8
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drivers/bluetooth/btmtksdio.c
+8
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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) {