| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 114/276] Bluetooth: hci_qca: Give enough time to ROME controller to bootup. | Date | Wed, 29 May 2019 20:04:32 -0700 |
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[ Upstream commit 7f09d5a6c33be66a5ca19bf9dd1c2d90c5dfcf0d ]
This patch enables enough time to ROME controller to bootup after we bring the enable pin out of reset.
Fixes: 05ba533c5c11 ("Bluetooth: hci_qca: Add serdev support"). Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Reviewed-by: Rocky Liao <rjliao@codeaurora.org> Tested-by: Rocky Liao <rjliao@codeaurora.org> Tested-by: Claire Chang <tientzu@chromium.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/bluetooth/hci_qca.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index f0d593c3fa728..77004c29da089 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -504,6 +504,8 @@ static int qca_open(struct hci_uart *hu) qcadev = serdev_device_get_drvdata(hu->serdev); if (qcadev->btsoc_type != QCA_WCN3990) { gpiod_set_value_cansleep(qcadev->bt_en, 1); + /* Controller needs time to bootup. */ + msleep(150); } else { hu->init_speed = qcadev->init_speed; hu->oper_speed = qcadev->oper_speed; -- 2.20.1
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