From: Venkata Lakshmi Narayana Gubba <gubbaven@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,
Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Subject: [RFC PATCH v1] Bluetooth: hci_qca: Add device_may_wakeup support
Date: Wed, 10 Mar 2021 17:11:36 +0530 [thread overview]
Message-ID: <1615376496-13577-1-git-send-email-gubbaven@codeaurora.org> (raw)
Added device_may_wakeup() support.
Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
---
drivers/bluetooth/hci_qca.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index de36af6..73af901 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1571,6 +1571,20 @@ static void qca_cmd_timeout(struct hci_dev *hdev)
mutex_unlock(&qca->hci_memdump_lock);
}
+static bool qca_prevent_wake(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ bool wakeup;
+
+ /* UART driver handles the interrupt from BT SoC.So we need to use
+ * device handle of UART driver to get the status of device may wakeup.
+ */
+ wakeup = device_may_wakeup(hu->serdev->ctrl->dev.parent);
+ bt_dev_dbg(hu->hdev, "wakeup status : %d", wakeup);
+
+ return !wakeup;
+}
+
static int qca_wcn3990_init(struct hci_uart *hu)
{
struct qca_serdev *qcadev;
@@ -1721,6 +1735,7 @@ static int qca_setup(struct hci_uart *hu)
qca_debugfs_init(hdev);
hu->hdev->hw_error = qca_hw_error;
hu->hdev->cmd_timeout = qca_cmd_timeout;
+ hu->hdev->prevent_wake = qca_prevent_wake;
} else if (ret == -ENOENT) {
/* No patch/nvm-config found, run with original fw/config */
set_bit(QCA_ROM_FW, &qca->flags);
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
next reply other threads:[~2021-03-10 11:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-10 11:41 Venkata Lakshmi Narayana Gubba [this message]
2021-03-10 15:02 ` [RFC PATCH v1] Bluetooth: hci_qca: Add device_may_wakeup support Bjorn Andersson
2021-03-11 6:01 ` gubbaven
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