From: Harish Bandi Date: Fri, 30 Aug 2019 12:28:36 +0000 (+0530) Subject: Bluetooth: hci_qca: wait for Pre shutdown complete event before sending the Power... X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=010376ab7fd788a0eddb86b6de5869b3045b97e3;p=linux.git Bluetooth: hci_qca: wait for Pre shutdown complete event before sending the Power off pulse When SoC receives pre shut down command, it share the same with other COEX shared clients. So SoC needs a short time after sending VS pre shutdown command before turning off the regulators and sending the power off pulse. Along with short delay, needs to wait for command complete event for Pre shutdown VS command Signed-off-by: Harish Bandi Reviewed-by: Balakrishna Godavarthi Signed-off-by: Marcel Holtmann --- diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index 0875470a7806f..8cc21ad7cf29d 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -106,8 +106,9 @@ int qca_send_pre_shutdown_cmd(struct hci_dev *hdev) bt_dev_dbg(hdev, "QCA pre shutdown cmd"); - skb = __hci_cmd_sync(hdev, QCA_PRE_SHUTDOWN_CMD, 0, - NULL, HCI_INIT_TIMEOUT); + skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0, + NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { err = PTR_ERR(skb); bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err); diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 15753f6bce80b..d33828fef89f4 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1375,6 +1375,8 @@ static int qca_power_off(struct hci_dev *hdev) /* Perform pre shutdown command */ qca_send_pre_shutdown_cmd(hdev); + usleep_range(8000, 10000); + qca_power_shutdown(hu); return 0; }