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From: Balakrishna Godavarthi <bgodavar@codeaurora.org>
To: marcel@holtmann.org, johan.hedberg@gmail.com
Cc: mka@chromium.org, linux-kernel@vger.kernel.org,
	linux-bluetooth@vger.kernel.org, hemantg@codeaurora.org,
	linux-arm-msm@vger.kernel.org, rjliao@codeaurora.org,
	Balakrishna Godavarthi <bgodavar@codeaurora.org>
Subject: [PATCH v1] Bluetooth: hci_qca: Give enough time to ROME controller to bootup.
Date: Wed,  6 Mar 2019 21:51:13 +0530	[thread overview]
Message-ID: <20190306162113.8585-1-bgodavar@codeaurora.org> (raw)

This patch enables enough time to ROME controller to bootup
after we bring the enable ping out of reset.

Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.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 237aea34b69f..1953b13511e7 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;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


             reply	other threads:[~2019-03-06 16:21 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-06 16:21 Balakrishna Godavarthi [this message]
2019-03-06 22:33 ` [PATCH v1] Bluetooth: hci_qca: Give enough time to ROME controller to bootup Stephen Boyd
2019-03-07  6:49   ` Balakrishna Godavarthi
2019-03-07  6:52     ` rjliao
2019-03-13  9:45     ` rjliao
2019-03-19  0:49       ` Nicolas Boichat
2019-03-19  2:35         ` Claire Chang
2019-03-08  5:15 ` rjliao

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