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Date: Wed, 29 May 2019 20:03:22 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Balakrishna Godavarthi <bgodavar@...eaurora.org>, Rocky Liao <rjliao@...eaurora.org>, Claire Chang <tientzu@...omium.org>, Marcel Holtmann <marcel@...tmann.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.0 129/346] Bluetooth: hci_qca: Give enough time to ROME controller to bootup. [ 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@...eaurora.org> Reviewed-by: Rocky Liao <rjliao@...eaurora.org> Tested-by: Rocky Liao <rjliao@...eaurora.org> Tested-by: Claire Chang <tientzu@...omium.org> Signed-off-by: Marcel Holtmann <marcel@...tmann.org> Signed-off-by: Sasha Levin <sashal@...nel.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 f036c8f98ea33..97bc17670b7aa 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -508,6 +508,8 @@ 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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