From: Harish Bandi <c-hbandi@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,
anubhavg@codeaurora.org, Harish Bandi <c-hbandi@codeaurora.org>
Subject: [PATCH v1] Bluetooth: hci_qca: wait for Pre shutdown to command complete event before sending the Power off pulse
Date: Thu, 8 Aug 2019 14:55:53 +0530 [thread overview]
Message-ID: <1565256353-4476-1-git-send-email-c-hbandi@codeaurora.org> (raw)
When SoC receives pre shut down command, it share the same
with other COEX shared clients. So SoC needs a short
time after sending VS pre shutdown command before
turning off the regulators and sending the power off pulse.
Signed-off-by: Harish Bandi <c-hbandi@codeaurora.org>
---
drivers/bluetooth/btqca.c | 5 +++--
drivers/bluetooth/hci_qca.c | 2 ++
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index 2221935..f20991e 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -106,8 +106,9 @@ int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
bt_dev_dbg(hdev, "QCA pre shutdown cmd");
- skb = __hci_cmd_sync(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
- NULL, HCI_INIT_TIMEOUT);
+ skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
+ NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
+
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 16db6c0..566aa28 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1386,6 +1386,8 @@ static int qca_power_off(struct hci_dev *hdev)
/* Perform pre shutdown command */
qca_send_pre_shutdown_cmd(hdev);
+ usleep_range(8000, 10000);
+
qca_power_shutdown(hu);
return 0;
}
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next reply other threads:[~2019-08-08 9:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-08 9:25 Harish Bandi [this message]
2019-08-08 10:55 ` [PATCH v1] Bluetooth: hci_qca: wait for Pre shutdown to command complete event before sending the Power off pulse Balakrishna Godavarthi
2019-08-09 4:51 ` Harish Bandi
2019-08-08 14:59 ` Matthias Kaehlcke
2019-08-09 5:12 ` Harish Bandi
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