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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 <c-hbandi@codeaurora.org>
Reviewed-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
alistair/sunxi64-5.4-dsi
Harish Bandi 2019-08-30 17:58:36 +05:30 committed by Marcel Holtmann
parent 16946de590
commit 010376ab7f
2 changed files with 5 additions and 2 deletions
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5
drivers/bluetooth/btqca.c
View File

@ -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);

2
drivers/bluetooth/hci_qca.c
View File

@ -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;
}