| Message ID | 1567141304-24600-1-git-send-email-c-hbandi@codeaurora.org (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v2] Bluetooth: hci_qca: wait for Pre shutdown complete event before sending the Power off pulse | expand |
Hi Harish, > 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> > --- > Changes in V2: > - Modified commit text. > --- > drivers/bluetooth/btqca.c | 22 ++++++++++++++++++++++ > drivers/bluetooth/hci_qca.c | 5 +++++ > 2 files changed, 27 insertions(+) the patch does not apply cleanly to bluetooth-next tree. Can you send an updated version please. Regards Marcel
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index 8b33128..d48dc9e 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -99,6 +99,28 @@ static int qca_send_reset(struct hci_dev *hdev) return 0; } +int qca_send_pre_shutdown_cmd(struct hci_dev *hdev) +{ + struct sk_buff *skb; + int err; + + bt_dev_dbg(hdev, "QCA pre shutdown cmd"); + + 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); + return err; + } + + kfree_skb(skb); + + return 0; +} +EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd); + static void qca_tlv_check_data(struct rome_config *config, const struct firmware *fw) { diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index ab4c18e..43df13c 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1367,6 +1367,11 @@ static int qca_power_off(struct hci_dev *hdev) { struct hci_uart *hu = hci_get_drvdata(hdev); + /* Perform pre shutdown command */ + qca_send_pre_shutdown_cmd(hdev); + + usleep_range(8000, 10000); + qca_power_shutdown(hu); return 0; }