From: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
To: marcel@holtmann.org, johan.hedberg@gmail.com
Cc: mka@chromium.org, linux-kernel@vger.kernel.org,
linux-bluetooth@vger.kernel.org, hemantg@codeaurora.org,
linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org,
rjliao@codeaurora.org, hbandi@codeaurora.org,
abhishekpandit@chromium.org,
Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Subject: [PATCH v1] Bluetooth: hci_qca: Wait for SSR completion during suspend
Date: Wed, 30 Dec 2020 22:47:08 +0530 [thread overview]
Message-ID: <1609348628-3932-1-git-send-email-gubbaven@codeaurora.org> (raw)
During SSR after memory dump collection,BT controller will be powered off,
powered on and then FW will be downloaded.During suspend if BT controller
is powered off due to SSR then we should wait until SSR is completed and
then suspend.
Fixes: 2be43abac5a8 ("Bluetooth: hci_qca: Wait for timeout during suspend")
Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
---
drivers/bluetooth/hci_qca.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 4a96368..6ad4079 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -50,7 +50,8 @@
#define IBS_HOST_TX_IDLE_TIMEOUT_MS 2000
#define CMD_TRANS_TIMEOUT_MS 100
#define MEMDUMP_TIMEOUT_MS 8000
-#define IBS_DISABLE_SSR_TIMEOUT_MS (MEMDUMP_TIMEOUT_MS + 1000)
+#define IBS_DISABLE_SSR_TIMEOUT_MS \
+ (MEMDUMP_TIMEOUT_MS + FW_DOWNLOAD_TIMEOUT_MS)
#define FW_DOWNLOAD_TIMEOUT_MS 3000
/* susclk rate */
@@ -2100,7 +2101,12 @@ static int __maybe_unused qca_suspend(struct device *dev)
set_bit(QCA_SUSPENDING, &qca->flags);
- if (test_bit(QCA_BT_OFF, &qca->flags))
+ /* During SSR after memory dump collection, controller will be
+ * powered off and then powered on.If controller is powered off
+ * during SSR then we should wait until SSR is completed.
+ */
+ if (test_bit(QCA_BT_OFF, &qca->flags) &&
+ !test_bit(QCA_SSR_TRIGGERED, &qca->flags))
return 0;
if (test_bit(QCA_IBS_DISABLED, &qca->flags)) {
@@ -2110,7 +2116,7 @@ static int __maybe_unused qca_suspend(struct device *dev)
/* QCA_IBS_DISABLED flag is set to true, During FW download
* and during memory dump collection. It is reset to false,
- * After FW download complete and after memory dump collections.
+ * After FW download complete.
*/
wait_on_bit_timeout(&qca->flags, QCA_IBS_DISABLED,
TASK_UNINTERRUPTIBLE, msecs_to_jiffies(wait_timeout));
@@ -2122,10 +2128,6 @@ static int __maybe_unused qca_suspend(struct device *dev)
}
}
- /* After memory dump collection, Controller is powered off.*/
- if (test_bit(QCA_BT_OFF, &qca->flags))
- return 0;
-
cancel_work_sync(&qca->ws_awake_device);
cancel_work_sync(&qca->ws_awake_rx);
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
next reply other threads:[~2020-12-30 17:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 17:17 Venkata Lakshmi Narayana Gubba [this message]
2021-01-06 7:50 ` [PATCH v1] Bluetooth: hci_qca: Wait for SSR completion during suspend Marcel Holtmann
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=1609348628-3932-1-git-send-email-gubbaven@codeaurora.org \
--to=gubbaven@codeaurora.org \
--cc=abhishekpandit@chromium.org \
--cc=bgodavar@codeaurora.org \
--cc=hbandi@codeaurora.org \
--cc=hemantg@codeaurora.org \
--cc=johan.hedberg@gmail.com \
--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 \
--cc=rjliao@codeaurora.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).