Messages in this thread Patch in this message | | | From | <> | Subject | [PATCH 3/7] Bluetooth: mt7921s: fix bus hang with wrong privilege | Date | Wed, 12 Jan 2022 15:39:13 +0800 |
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From: Mark Chen <mark-yw.chen@mediatek.com>
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> --- drivers/bluetooth/btmtksdio.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 8cbd49013d86..0951bb10d117 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -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) { -- 2.25.1
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