linux-kernel - [PATCH v1 1/1] Bluetooth: hci_qca: only assign wakeup with serial port support

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Message-ID: <20221013144431.v1.1.I47f1918a2786b34e7649387233377c57a8bdcdac@changeid>
Date:   Thu, 13 Oct 2022 14:45:08 -0700
From:   Zhengping Jiang <jiangzp@...gle.com>
To:     linux-bluetooth@...r.kernel.org, marcel@...tmann.org,
        luiz.dentz@...il.com
Cc:     Zhengping Jiang <jiangzp@...gle.com>,
        Johan Hedberg <johan.hedberg@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/1] Bluetooth: hci_qca: only assign wakeup with serial
 port support

Only assign hdev->wakeup if the serial port supports wakeup. Otherwise
it will fall back to the hci_uart_wakeup or the behavior that can be
overridden before calling the hci_uart_register_device().

Signed-off-by: Zhengping Jiang <jiangzp@...gle.com>
---

Changes in v1:
- Check serial port support before assigning wakeup callback

 drivers/bluetooth/hci_qca.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 8df11016fd51..dacb6f5efd29 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1765,7 +1765,8 @@ 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->wakeup = qca_wakeup;
+		if (device_can_wakeup(hu->serdev->ctrl->dev.parent))
+			hu->hdev->wakeup = qca_wakeup;
 	} else if (ret == -ENOENT) {
 		/* No patch/nvm-config found, run with original fw/config */
 		set_bit(QCA_ROM_FW, &qca->flags);
-- 
2.38.0.413.g74048e4d9e-goog