mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Bluetooth: hci_qca: Add device_may_wakeup support 

Based on device may wakeup status, Bluez stack will enable/disable
passive scanning with whitelist in BT controller while suspending.
As interrupt from BT SoC is handled by UART driver,we need to use
device handle of UART driver to get the status of device may wakeup

Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Venkata Lakshmi Narayana Gubba 2021-03-11 12:33:40 +05:30 committed by Marcel Holtmann
parent 6d19628f53
commit c1a74160ea
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/bluetooth/hci_qca.c
View File

@ -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 @@ retry:
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);