diff options
Diffstat (limited to 'SOURCES/bluetooth-btusb-qca-fix.patch')
| -rw-r--r-- | SOURCES/bluetooth-btusb-qca-fix.patch | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/SOURCES/bluetooth-btusb-qca-fix.patch b/SOURCES/bluetooth-btusb-qca-fix.patch deleted file mode 100644 index d770639..0000000 --- a/SOURCES/bluetooth-btusb-qca-fix.patch +++ /dev/null @@ -1,51 +0,0 @@ -From 28ddef379ecc0ab1ae646f6442cfa839ab9a15b2 Mon Sep 17 00:00:00 2001 -From: Hui Wang <hui.wang@canonical.com> -Date: Mon, 8 Feb 2021 13:02:37 +0800 -Subject: [PATCH 5.12 regression fix] Bluetooth: btusb: Some Qualcomm Bluetooth - adapters stop working - -This issue starts from linux-5.10-rc1, I reproduced this issue on my -Dell Inspiron 7447 with BT adapter 0cf3:e005, the kernel will print -out: "Bluetooth: hci0: don't support firmware rome 0x31010000", and -someone else also reported the similar issue to bugzilla #211571. - -I found this is a regression introduced by 'commit b40f58b97386 -("Bluetooth: btusb: Add Qualcomm Bluetooth SoC WCN6855 support"), the -patch assumed that if high ROM version is not zero, it is an adapter -on WCN6855, but many old adapters don't need to load rampatch or nvm, -and they have non-zero high ROM version. - -To fix it, let the driver match the rom_version in the -qca_devices_table first, if there is no entry matched, check the -high ROM version, if it is not zero, we assume this adapter is ready -to work and no need to load rampatch and nvm like previously. - -BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=211571 -Fixes: b40f58b97386 ("Bluetooth: btusb: Add Qualcomm Bluetooth SoC WCN6855 support") -Signed-off-by: Hui Wang <hui.wang@canonical.com> -Signed-off-by: Marcel Holtmann <marcel@holtmann.org> ---- - drivers/bluetooth/btusb.c | 7 +++++++ - 1 file changed, 7 insertions(+) - -diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c -index 80468745d5c5..1c128de99abd 100644 ---- a/drivers/bluetooth/btusb.c -+++ b/drivers/bluetooth/btusb.c -@@ -3693,6 +3693,13 @@ static int btusb_setup_qca(struct hci_dev *hdev) - info = &qca_devices_table[i]; - } - if (!info) { -+ /* If the rom_version is not matched in the qca_devices_table -+ * and the high ROM version is not zero, we assume this chip no -+ * need to load the rampatch and nvm. -+ */ -+ if (ver_rom & ~0xffffU) -+ return 0; -+ - bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); - return -ENODEV; - } --- -2.30.1 - |