diff options
| author | Hilda Wu <hildawu@realtek.com> | 2021-09-30 12:36:34 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2021-10-01 11:40:47 +0200 |
| commit | cd36742a957c37f6cd17124dac6dd1d61aeba4ab (patch) | |
| tree | 2d4c8c168423e78eb6adf77c0a9cab584845fad4 /drivers/bluetooth/btrtl.c | |
| parent | Bluetooth: btusb: Add support for TP-Link UB500 Adapter (diff) | |
| download | linux-cd36742a957c37f6cd17124dac6dd1d61aeba4ab.tar.xz linux-cd36742a957c37f6cd17124dac6dd1d61aeba4ab.zip | |
Bluetooth: btrtl: Ask ic_info to drop firmware
Some un-support wakeup platforms keep USB power and suspend signal
is coming late, this makes Realtek some chip keep its firmware,
and make it never load new firmware.
So use vendor specific HCI command to ask them drop its firmware after
system shutdown or resume.
Signed-off-by: Hilda Wu <hildawu@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth/btrtl.c')
| -rw-r--r-- | drivers/bluetooth/btrtl.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c index 08582effb25e..c2bdd1e6060e 100644 --- a/drivers/bluetooth/btrtl.c +++ b/drivers/bluetooth/btrtl.c @@ -601,8 +601,10 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev, hci_rev = le16_to_cpu(resp->hci_rev); lmp_subver = le16_to_cpu(resp->lmp_subver); - if (resp->hci_ver == 0x8 && le16_to_cpu(resp->hci_rev) == 0x826c && - resp->lmp_ver == 0x8 && le16_to_cpu(resp->lmp_subver) == 0xa99e) + btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver, + hdev->bus); + + if (!btrtl_dev->ic_info) btrtl_dev->drop_fw = true; if (btrtl_dev->drop_fw) { @@ -641,13 +643,13 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev, hci_ver = resp->hci_ver; hci_rev = le16_to_cpu(resp->hci_rev); lmp_subver = le16_to_cpu(resp->lmp_subver); + + btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver, + hdev->bus); } out_free: kfree_skb(skb); - btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver, - hdev->bus); - if (!btrtl_dev->ic_info) { rtl_dev_info(hdev, "unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x", lmp_subver, hci_rev, hci_ver); |