| Message ID | 1713771497-5733-2-git-send-email-quic_zijuhu@quicinc.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Fix two regression issues for QCA controllers | expand |
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 92fa20f5ac7d..4079254fb1c8 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -2357,6 +2357,8 @@ static int qca_serdev_probe(struct serdev_device *serdev) if (IS_ERR(qcadev->bt_en)) { dev_warn(&serdev->dev, "failed to acquire enable gpio\n"); power_ctrl_enabled = false; + } else if (!qcadev->bt_en && qcadev->btsoc_type == QCA_QCA6390) { + power_ctrl_enabled = false; } qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
Commit 56d074d26c58 ("Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()") will cause below serious regression issue: BT can't be enabled any more after below steps: cold boot -> enable BT -> disable BT -> BT enable failure if property enable-gpios is not configured within DT|ACPI for QCA_QCA6390. The commit wrongly changes flag @power_ctrl_enabled set logic for this case as shown by its below code applet and causes this serious issue. qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable", GPIOD_OUT_LOW); - if (IS_ERR_OR_NULL(qcadev->bt_en)) { + if (IS_ERR(qcadev->bt_en)) { dev_warn(&serdev->dev, "failed to acquire enable gpio\n"); power_ctrl_enabled = false; } Fixed by reverting the mentioned commit for QCA_QCA6390. Fixes: 56d074d26c58 ("Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()") Reported-by: Wren Turkal <wt@penguintechs.org> Link: https://bugzilla.kernel.org/show_bug.cgi?id=218726 Link: https://lore.kernel.org/linux-bluetooth/ea20bb9b-6b60-47fc-ae42-5eed918ad7b4@quicinc.com/T/#m73d6a71d2f454bb03588c66f3ef7912274d37c6f Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Tested-by: Wren Turkal <wt@penguintechs.org> --- drivers/bluetooth/hci_qca.c | 2 ++ 1 file changed, 2 insertions(+)