From: Balakrishna Godavarthi <bgodavar@codeaurora.org>
To: marcel@holtmann.org, johan.hedberg@gmail.com, johan@kernel.org
Cc: mka@chromium.org, linux-kernel@vger.kernel.org,
linux-bluetooth@vger.kernel.org, hemantg@codeaurora.org,
linux-arm-msm@vger.kernel.org,
Balakrishna Godavarthi <bgodavar@codeaurora.org>
Subject: [PATCH v5 4/5] Bluetooth: hci_qca: Disable IBS state machine and flush Tx buffer
Date: Thu, 20 Dec 2018 20:16:38 +0530 [thread overview]
Message-ID: <20181220144639.15928-5-bgodavar@codeaurora.org> (raw)
In-Reply-To: <20181220144639.15928-1-bgodavar@codeaurora.org>
During hci down we observed IBS sleep commands are queued in the Tx
buffer and hci_uart_write_work is sending data to the chip which is
not required as the chip is powered off. This patch will disable IBS
and flush the Tx buffer before we turn off the chip.
Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
---
drivers/bluetooth/hci_qca.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 52de0b5a0620..cccc9a525926 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1286,6 +1286,8 @@ static void qca_power_shutdown(struct hci_uart *hu)
* still open, discard all the garbage data received on the Rx line.
*/
set_bit(STATE_DISCARD_RX, &qca->flags);
+ clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
+ qca_flush(hu);
serdev_device_write_flush(hu->serdev);
host_set_baudrate(hu, 2400);
qca_send_power_pulse(hu, QCA_WCN3990_POWEROFF_PULSE);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2018-12-20 14:47 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-20 14:46 [PATCH v5 0/5] Bug fixes for Qualcomm BT chip wcn3990 Balakrishna Godavarthi
2018-12-20 14:46 ` [PATCH v5 1/5] Bluetooth: hci_qca: use wait_until_sent() for power pulses Balakrishna Godavarthi
2018-12-22 1:59 ` Matthias Kaehlcke
2018-12-26 6:31 ` Balakrishna Godavarthi
2018-12-26 22:21 ` Matthias Kaehlcke
2018-12-27 3:23 ` Balakrishna Godavarthi
2019-01-09 14:38 ` Johan Hovold
2019-01-10 14:48 ` Balakrishna Godavarthi
2019-01-11 0:55 ` Matthias Kaehlcke
2019-01-11 14:32 ` Balakrishna Godavarthi
2019-01-11 23:38 ` Matthias Kaehlcke
2019-01-14 10:25 ` Balakrishna Godavarthi
2018-12-20 14:46 ` [PATCH v5 2/5] Bluetooth: hci_qca: Deassert RTS while baudrate change command Balakrishna Godavarthi
2018-12-22 0:31 ` Matthias Kaehlcke
2018-12-26 5:45 ` Balakrishna Godavarthi
2018-12-26 20:25 ` Matthias Kaehlcke
2018-12-27 3:20 ` Balakrishna Godavarthi
2019-01-09 14:52 ` Johan Hovold
2019-01-10 14:34 ` Balakrishna Godavarthi
2019-01-10 14:39 ` Johan Hovold
2019-01-10 14:52 ` Balakrishna Godavarthi
2019-01-11 1:37 ` Matthias Kaehlcke
2019-01-11 15:07 ` Balakrishna Godavarthi
2019-01-11 23:56 ` Matthias Kaehlcke
2019-01-14 14:52 ` Balakrishna Godavarthi
2019-01-15 23:46 ` Matthias Kaehlcke
2019-01-17 16:09 ` Johan Hovold
2019-01-17 17:21 ` Matthias Kaehlcke
2019-01-18 9:44 ` Johan Hovold
2019-01-19 0:31 ` Matthias Kaehlcke
2019-01-21 8:56 ` Johan Hovold
2019-01-22 21:39 ` Matthias Kaehlcke
2019-01-21 14:41 ` Balakrishna Godavarthi
2019-01-22 21:53 ` Matthias Kaehlcke
2019-01-23 12:57 ` Balakrishna Godavarthi
2018-12-20 14:46 ` [PATCH v5 3/5] Bluetooth: hci_qca: Fix frame reassembly errors for wcn3990 Balakrishna Godavarthi
2018-12-20 14:46 ` Balakrishna Godavarthi [this message]
2018-12-20 14:46 ` [PATCH v5 5/5] Bluetooth: btqca: inject command complete event during fw download Balakrishna Godavarthi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181220144639.15928-5-bgodavar@codeaurora.org \
--to=bgodavar@codeaurora.org \
--cc=hemantg@codeaurora.org \
--cc=johan.hedberg@gmail.com \
--cc=johan@kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-bluetooth@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marcel@holtmann.org \
--cc=mka@chromium.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).