[PATCH v9 09/10] Bluetooth: qca: Set NVMEM BD address quirks when address is invalid

Loic Poulain <[email protected]> Thu, 30 Jul 2026 18:00:39 +0200
Newsgroups org.infradead.lists.ath10k,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-block,org.kernel.vger.linux-bluetooth,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-mmc,org.kernel.vger.linux-wireless,org.kernel.vger.netdev
Message-ID <[email protected]>
When the controller BD address is invalid (zero or default),
set the NVMEM quirks to allow retrieving the address from a
'local-bd-address' NVMEM cell. The BD address is often stored
alongside the WiFi MAC address in big-endian format, so also
set the big-endian quirk.

Reviewed-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Loic Poulain <[email protected]>
---
 drivers/bluetooth/btqca.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index 04ebe290bc784ea854ec7743bc753c3e41f556d3..06cb787b0559f3d712ec2b88d9e25a7d46fb00b3 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -723,8 +723,11 @@ static int qca_check_bdaddr(struct hci_dev *hdev, const struct qca_fw_config *co
 	}
 
 	bda = (struct hci_rp_read_bd_addr *)skb->data;
-	if (!bacmp(&bda->bdaddr, &config->bdaddr))
+	if (!bacmp(&bda->bdaddr, &config->bdaddr)) {
 		hci_set_quirk(hdev, HCI_QUIRK_USE_BDADDR_PROPERTY);
+		hci_set_quirk(hdev, HCI_QUIRK_USE_BDADDR_NVMEM);
+		hci_set_quirk(hdev, HCI_QUIRK_BDADDR_NVMEM_BE);
+	}
 
 	kfree_skb(skb);
 

-- 
2.34.1