diff options
| author | Mark Chen <mark-yw.chen@mediatek.com> | 2022-01-12 10:39:11 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2022-01-22 01:49:27 +0300 |
| commit | 2fc967cc0dadad6735448cfbcbc77fe0ea30203d (patch) | |
| tree | d7686e864b406b68ff6b1e573daf97bc8d11bae0 /drivers/bluetooth/btmtksdio.c | |
| parent | 9d7cbe2b9cf5f650067df4f402fdd799d4bbb4e1 (diff) | |
| download | linux-2fc967cc0dadad6735448cfbcbc77fe0ea30203d.tar.xz | |
Bluetooth: mt7921s: fix firmware coredump retrieve
According to the MCU firmware behavior, as the driver is aware of the
notification of the interrupt source FW_MAILBOX_INT that shows the MCU
completed delivered a core dump piece to the host, the driver must
acknowledge the MCU with the register PH2DSM0R bit PH2DSM0R_DRIVER_OWN
to notify the MCU to handle the next core dump piece.
Fixes: db57b625912a ("Bluetooth: btmtksdio: add support of processing firmware coredump and log")
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Mark Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth/btmtksdio.c')
| -rw-r--r-- | drivers/bluetooth/btmtksdio.c | 10 |
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"); |