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Subject[PATCH v1 3/4] Bluetooth: hci_qca: Enable power off/on support during hci down/up for QCA Rome
Date
This patch registers hdev->shutdown() callback and also sets
HCI_QUIRK_NON_PERSISTENT_SETUP for QCA Rome. It will power-off the BT chip
during hci down and power-on/initialize the chip again during hci up.

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
---
drivers/bluetooth/hci_qca.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 45042aa27fa4..7e202041ed77 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1300,6 +1300,11 @@ static int qca_setup(struct hci_uart *hu)
} else {
bt_dev_info(hdev, "ROME setup");
if (hu->serdev) {
+ /* Enable NON_PERSISTENT_SETUP QUIRK to ensure to
+ * execute setup for every hci up.
+ */
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+ hu->hdev->shutdown = qca_power_off;
qcadev = serdev_device_get_drvdata(hu->serdev);
gpiod_set_value_cansleep(qcadev->bt_en, 1);
/* Controller needs time to bootup. */
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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