Re: [PATCH 3/3] Bluetooth: hci_qca: Add serdev support

From: Thierry Escande <redacted>

Add support for Qualcomm serial slave devices. Probe the serial device,
retrieve its maximum speed and register a new hci uart device.

Signed-off-by: Thierry Escande <redacted>
---
 drivers/bluetooth/Kconfig   |   2 +-
 drivers/bluetooth/hci_qca.c | 102 +++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 101 insertions(+), 3 deletions(-)

diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 07e55cd8f8c8..c2a6a7ebd14b 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig

@@ -195,7 +195,7 @@ config BT_HCIUART_BCM

 config BT_HCIUART_QCA
        bool "Qualcomm Atheros protocol support"
-       depends on BT_HCIUART
+       depends on BT_HCIUART_SERDEV

@@ -386,6 +399,7 @@ static void hci_ibs_wake_retrans_timeout(struct timer_list *t)
 /* Initialize protocol */
 static int qca_open(struct hci_uart *hu)
 {
+       struct qca_serdev *qcadev;
        struct qca_data *qca;

        BT_DBG("hu %p qca_open", hu);

@@ -444,6 +458,13 @@ static int qca_open(struct hci_uart *hu)
        timer_setup(&qca->tx_idle_timer, hci_ibs_tx_idle_timeout, 0);
        qca->tx_idle_delay = IBS_TX_IDLE_TIMEOUT_MS;

+       if (hu->serdev) {
+               serdev_device_open(hu->serdev);
+
+               qcadev = serdev_device_get_drvdata(hu->serdev);
+               gpiod_set_value(qcadev->bt_en, 1);