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From: pharish <pharish@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, bgodavar@codeaurora.org,
	rjliao@codeaurora.org, hbandi@codeaurora.org,
	abhishekpandit@chromium.org, mcchou@chromium.org,
	saluvala@codeaurora.org, pharish <pharish@codeaurora.org>
Subject: [PATCH v1] Bluetooth: hci_qca: Optimizations in init sequence for WCN6750.
Date: Thu, 25 Nov 2021 18:47:09 +0530	[thread overview]
Message-ID: <1637846230-4798-1-git-send-email-pharish@codeaurora.org> (raw)

This change adds optimazation in init sequence for WCN6750.

Signed-off-by: pharish <pharish@codeaurora.org>
---
 drivers/bluetooth/hci_qca.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 6f44b26..4dedaaa 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1603,15 +1603,19 @@ static int qca_regulator_init(struct hci_uart *hu)
 	 */
 	qcadev = serdev_device_get_drvdata(hu->serdev);
 	if (!qcadev->bt_power->vregs_on) {
-		serdev_device_close(hu->serdev);
+		if (qca_is_wcn399x(soc_type))
+			serdev_device_close(hu->serdev);
+
 		ret = qca_regulator_enable(qcadev);
 		if (ret)
 			return ret;
 
-		ret = serdev_device_open(hu->serdev);
-		if (ret) {
-			bt_dev_err(hu->hdev, "failed to open port");
-			return ret;
+		if (qca_is_wcn399x(soc_type)) {
+			ret = serdev_device_open(hu->serdev);
+			if (ret) {
+				bt_dev_err(hu->hdev, "failed to open port");
+				return ret;
+			}
 		}
 	}
 
@@ -1635,9 +1639,8 @@ static int qca_regulator_init(struct hci_uart *hu)
 		}
 	}
 
-	qca_set_speed(hu, QCA_INIT_SPEED);
-
 	if (qca_is_wcn399x(soc_type)) {
+		qca_set_speed(hu, QCA_INIT_SPEED);
 		ret = qca_send_power_pulse(hu, true);
 		if (ret)
 			return ret;
@@ -1648,6 +1651,7 @@ static int qca_regulator_init(struct hci_uart *hu)
 	 * Without this, we will have RTS and CTS synchronization
 	 * issues.
 	 */
+
 	serdev_device_close(hu->serdev);
 	ret = serdev_device_open(hu->serdev);
 	if (ret) {
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member 
of Code Aurora Forum, hosted by The Linux Foundation


             reply	other threads:[~2021-11-25 13:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-25 13:17 pharish [this message]
2021-11-25 13:17 ` [PATCH v1] Bluetooth: hci_qca: Stop IBS timer during BT OFF pharish
2021-11-25 18:42   ` Marcel Holtmann
2021-12-07  5:39     ` pharish
2021-11-25 18:44 ` [PATCH v1] Bluetooth: hci_qca: Optimizations in init sequence for WCN6750 Marcel Holtmann

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