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-rw-r--r--drivers/bluetooth/btmtksdio.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 25fb9c79b1f4..784e65c3fddd 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -87,8 +87,12 @@ MODULE_DEVICE_TABLE(sdio, btmtksdio_table);
#define RX_DONE_INT BIT(1)
#define TX_EMPTY BIT(2)
#define TX_FIFO_OVERFLOW BIT(8)
+#define FW_MAILBOX_INT BIT(15)
#define RX_PKT_LEN GENMASK(31, 16)
+#define MTK_REG_PH2DSM0R 0xc4
+#define PH2DSM0R_DRIVER_OWN BIT(0)
+
#define MTK_REG_CTDR 0x18
#define MTK_REG_CRDR 0x1c
@@ -481,6 +485,12 @@ static void btmtksdio_txrx_work(struct work_struct *work)
*/
sdio_writel(bdev->func, int_status, MTK_REG_CHISR, NULL);
+ if ((int_status & FW_MAILBOX_INT) &&
+ bdev->data->chipid == 0x7921) {
+ sdio_writel(bdev->func, PH2DSM0R_DRIVER_OWN,
+ MTK_REG_PH2DSM0R, 0);
+ }
+
if (int_status & FW_OWN_BACK_INT)
bt_dev_dbg(bdev->hdev, "Get fw own back");