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| author |  Johan Hovold <johan+linaro@kernel.org>
| 2024-03-20 08:55:53 +0100 |
|---|---|---|
| committer |  Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
| 2024-03-29 09:48:37 -0400 |
| commit | 39646f29b100566451d37abc4cc8cdd583756dfe (patch) | |
| tree | c09897f5cbf83c1a2a5aaca5b7646a9a09a73317 /include | |
| parent | arm64: dts: qcom: sc7180-trogdor: mark bluetooth address as broken (diff) | |
| download | linux-39646f29b100566451d37abc4cc8cdd583756dfe.tar.gz linux-39646f29b100566451d37abc4cc8cdd583756dfe.tar.bz2 linux-39646f29b100566451d37abc4cc8cdd583756dfe.zip | |
Bluetooth: add quirk for broken address properties
Some Bluetooth controllers lack persistent storage for the device
address and instead one can be provided by the boot firmware using the
'local-bd-address' devicetree property.
The Bluetooth devicetree bindings clearly states that the address should
be specified in little-endian order, but due to a long-standing bug in
the Qualcomm driver which reversed the address some boot firmware has
been providing the address in big-endian order instead.
Add a new quirk that can be set on platforms with broken firmware and
use it to reverse the address when parsing the property so that the
underlying driver bug can be fixed.
Fixes: 5c0a1001c8be ("Bluetooth: hci_qca: Add helper to set device address")
Cc: stable@vger.kernel.org # 5.1
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/bluetooth/hci.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 8701ca5f31ee..5c12761cbc0e 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -176,6 +176,15 @@ enum { */ HCI_QUIRK_USE_BDADDR_PROPERTY, + /* When this quirk is set, the Bluetooth Device Address provided by + * the 'local-bd-address' fwnode property is incorrectly specified in + * big-endian order. + * + * This quirk can be set before hci_register_dev is called or + * during the hdev->setup vendor callback. + */ + HCI_QUIRK_BDADDR_PROPERTY_BROKEN, + /* When this quirk is set, the duplicate filtering during * scanning is based on Bluetooth devices addresses. To allow * RSSI based updates, restart scanning if needed. |