From 201a11246d6018bb4ce648e62ed099950f4b174a Mon Sep 17 00:00:00 2001
From: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Date: Fri, 12 Jun 2020 17:45:17 +0530
Subject: [PATCH] Bluetooth: hci_qca: Request Tx clock vote off only when Tx is pending
Git-commit: 201a11246d6018bb4ce648e62ed099950f4b174a
Patch-mainline: v5.9-rc1
References: jsc#SLE-13430
Tx pending flag is set to true when HOST IBS state is AWAKE or
AWAKEING. If IBS state is ASLEEP, then Tx clock is already voted
off. To optimize further directly calling serial_clock_vote()
instead of qca_wq_serial_tx_clock_vote_off(), at this point of
qca_suspend() already data is sent out. No need to wake up hci to
send data.
Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/bluetooth/hci_qca.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 91c9aa642367..99d14c777105 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -2107,6 +2107,7 @@ static int __maybe_unused qca_suspend(struct device *dev)
if (tx_pending) {
serdev_device_wait_until_sent(hu->serdev,
msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
+ serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_OFF, hu);
}
/* Wait for HCI_IBS_SLEEP_IND sent by device to indicate its Tx is going
@@ -2120,7 +2121,6 @@ static int __maybe_unused qca_suspend(struct device *dev)
goto error;
}
- qca_wq_serial_tx_clock_vote_off(&qca->ws_tx_vote_off);
return 0;
error:
--
2.16.4