From: bugzilla-daemon@bugzilla.kernel.org
To: linux-bluetooth@vger.kernel.org
Subject: [Bug 213829] Intel AX210 Bluetooth controller doesn't start from warm boot
Date: Sun, 17 Oct 2021 18:05:04 +0000 [thread overview]
Message-ID: <bug-213829-62941-EqhONenYdh@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-213829-62941@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=213829
--- Comment #13 from Guillaume Binet (gbin@gootz.net) ---
I continued to investigate. The major difference between a cold boot and a warm
boot is the driver trying to load a firmware.
For the science, I just disabled this behavior and it looks like the device and
driver recover on a warm boot. Consider this a workaround and not a fix but at
least it works for me, bluetooth is available on a warm boot.
```
pal ➜ linux-5.14.12 diff -u drivers/bluetooth/btintel.c.old
drivers/bluetooth/btintel.c
--- drivers/bluetooth/btintel.c.old 2021-10-17 13:56:23.583338189 -0400
+++ drivers/bluetooth/btintel.c 2021-10-17 14:01:16.113344330 -0400
@@ -1034,17 +1034,6 @@
/* Skip reading firmware file version in bootloader mode */
if (ver->fw_variant == 0x06)
break;
-
- /* Skip download if firmware has the same version */
- if (btintel_firmware_version(hdev, ver->fw_build_num,
- ver->fw_build_ww,
ver->fw_build_yy,
- fw, boot_param)) {
- bt_dev_info(hdev, "Firmware already loaded");
- /* Return -EALREADY to indicate that the firmware has
- * already been loaded.
- */
- return -EALREADY;
- }
}
/* The firmware variant determines if the device is in bootloader
@@ -1074,21 +1063,6 @@
int err;
u32 css_header_ver;
- /* Skip reading firmware file version in bootloader mode */
- if (ver->img_type != 0x01) {
- /* Skip download if firmware has the same version */
- if (btintel_firmware_version(hdev, ver->min_fw_build_nn,
- ver->min_fw_build_cw,
- ver->min_fw_build_yy,
- fw, boot_param)) {
- bt_dev_info(hdev, "Firmware already loaded");
- /* Return -EALREADY to indicate that firmware has
- * already been loaded.
- */
- return -EALREADY;
- }
- }
-
/* The firmware variant determines if the device is in bootloader
* mode or is running operational firmware. The value 0x01 identifies
* the bootloader and the value 0x03 identifies the operational
```
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are the assignee for the bug.
next prev parent reply other threads:[~2021-10-17 18:05 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-213829-62941@https.bugzilla.kernel.org/>
2021-09-10 4:41 ` [Bug 213829] Intel AX210 Bluetooth controller doesn't start from warm boot bugzilla-daemon
2021-10-17 18:05 ` bugzilla-daemon [this message]
2021-11-02 13:57 ` bugzilla-daemon
2021-11-02 20:02 ` bugzilla-daemon
2021-11-11 1:11 ` bugzilla-daemon
2021-11-11 3:12 ` bugzilla-daemon
2021-11-13 3:43 ` bugzilla-daemon
2021-11-13 9:19 ` bugzilla-daemon
2021-11-13 17:55 ` bugzilla-daemon
2021-11-14 8:07 ` bugzilla-daemon
2021-11-14 14:36 ` bugzilla-daemon
2021-11-25 12:19 ` bugzilla-daemon
2021-11-26 14:49 ` bugzilla-daemon
2022-01-02 20:37 ` bugzilla-daemon
2022-01-02 21:07 ` bugzilla-daemon
2022-01-06 12:58 ` bugzilla-daemon
2022-01-06 13:03 ` bugzilla-daemon
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=bug-213829-62941-EqhONenYdh@https.bugzilla.kernel.org/ \
--to=bugzilla-daemon@bugzilla.kernel.org \
--cc=linux-bluetooth@vger.kernel.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).