diff options
| author | Tedd Ho-Jeong An <tedd.an@intel.com> | 2021-08-05 03:32:13 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2021-08-05 17:03:29 +0300 |
| commit | ffcba827c0a1d81933d4fdc35b925d150cee7dec (patch) | |
| tree | 964dec54d4b420218a2e6df78d968998cffad2df /drivers/bluetooth | |
| parent | ea7c4c0e44ee6d8cdf149af4e4084b16154ef216 (diff) | |
| download | linux-ffcba827c0a1d81933d4fdc35b925d150cee7dec.tar.xz | |
Bluetooth: btintel: Fix the LED is not turning off immediately
Some platforms have an issue with BT LED when the interface is
down or BT radio is turned off, which takes 5 seconds to BT LED
goes off. This command turns off the BT LED immediately.
This patch sends the Intel vendor command to turn off the LED.
Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btintel.c | 23 | ||||
| -rw-r--r-- | drivers/bluetooth/btintel.h | 1 |
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 8e6b497a2164..fd947a8798a9 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -1737,6 +1737,13 @@ static int btintel_setup_combined(struct hci_dev *hdev) case 0x07: /* WP */ case 0x08: /* StP */ /* Legacy ROM product */ + + /* These devices have an issue with LED which doesn't + * go off immediately during shutdown. Set the flag + * here to send the LED OFF command during shutdown. + */ + btintel_set_flag(hdev, INTEL_BROKEN_LED); + err = btintel_legacy_rom_setup(hdev, &ver); break; case 0x0b: /* SfP */ @@ -1785,6 +1792,7 @@ exit_error: static int btintel_shutdown_combined(struct hci_dev *hdev) { struct sk_buff *skb; + int ret; /* Send HCI Reset to the controller to stop any BT activity which * were triggered. This will help to save power and maintain the @@ -1797,6 +1805,21 @@ static int btintel_shutdown_combined(struct hci_dev *hdev) } kfree_skb(skb); + + /* Some platforms have an issue with BT LED when the interface is + * down or BT radio is turned off, which takes 5 seconds to BT LED + * goes off. This command turns off the BT LED immediately. + */ + if (btintel_test_flag(hdev, INTEL_BROKEN_LED)) { + skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + ret = PTR_ERR(skb); + bt_dev_err(hdev, "turning off Intel device LED failed"); + return ret; + } + kfree_skb(skb); + } + return 0; } diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h index 8a49795ad5af..aef04fa0e1ef 100644 --- a/drivers/bluetooth/btintel.h +++ b/drivers/bluetooth/btintel.h @@ -145,6 +145,7 @@ enum { INTEL_FIRMWARE_FAILED, INTEL_BOOTING, INTEL_BROKEN_INITIAL_NCMD, + INTEL_BROKEN_LED, __INTEL_NUM_FLAGS, }; |