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Bluetooth: btmtksdio: fix the reset takes too long

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Sending WMT command during the reset in progress is invalid and would get
no response from firmware until the reset is complete, so we ignore the WMT
command here to resolve the issue which causes the whole reset process
taking too long.

Fixes: 8fafe70225 ("Bluetooth: mt7921s: support bluetooth reset mechanism")
Co-developed-by: Yake Yang <yake.yang@mediatek.com>
Signed-off-by: Yake Yang <yake.yang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Sean Wang 2022-05-13 05:38:11 +08:00 committed by Marcel Holtmann
parent 7469720563
commit baabb7f530
1 changed files with 5 additions and 0 deletions
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5
drivers/bluetooth/btmtksdio.c
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@ -1189,6 +1189,10 @@ static int btmtksdio_shutdown(struct hci_dev *hdev)
*/
pm_runtime_get_sync(bdev->dev);
/* wmt command only works until the reset is complete */
if (test_bit(BTMTKSDIO_HW_RESET_ACTIVE, &bdev->tx_state))
goto ignore_wmt_cmd;
/* Disable the device */
wmt_params.op = BTMTK_WMT_FUNC_CTRL;
wmt_params.flag = 0;
@ -1202,6 +1206,7 @@ static int btmtksdio_shutdown(struct hci_dev *hdev)
return err;
}
ignore_wmt_cmd:
pm_runtime_put_noidle(bdev->dev);
pm_runtime_disable(bdev->dev);