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Subject[PATCH v3 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>
---

Changes in v2: None
Changes in v3:
- Move the quirk and callback register to probe()

drivers/bluetooth/hci_qca.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 45042aa27fa4..ca0b38f065e5 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1532,6 +1532,7 @@ static int qca_init_regulators(struct qca_power *qca,
static int qca_serdev_probe(struct serdev_device *serdev)
{
struct qca_serdev *qcadev;
+ struct hci_dev *hdev;
const struct qca_vreg_data *data;
int err;

@@ -1596,8 +1597,14 @@ static int qca_serdev_probe(struct serdev_device *serdev)
return err;

err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
- if (err)
+ if (err) {
clk_disable_unprepare(qcadev->susclk);
+ goto out;
+ }
+
+ hdev = qcadev->serdev_hu.hdev;
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+ hdev->shutdown = qca_power_off;
}

out: return err;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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