Write the register 0x18011100[1] = 1 to avoid the device enter sleep state during download patch flow on specific platform. Error log: Bluetooth: hci0: Execution of wmt command timed out Bluetooth: hci0: Failed to send wmt patch dwnld (-110) Bluetooth: hci0: Failed to set up firmware (-110) Signed-off-by: Peter Tsao <peter.tsao@xxxxxxxxxxxx> --- drivers/bluetooth/btmtk.h | 3 +++ drivers/bluetooth/btusb.c | 6 +++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h index 56f5502baadf..8b582077a01f 100644 --- a/drivers/bluetooth/btmtk.h +++ b/drivers/bluetooth/btmtk.h @@ -22,6 +22,9 @@ #define MT7921_DLSTATUS 0x7c053c10 #define BT_DL_STATE BIT(1) +#define MT7925_SLPPROT 0x18011100 +#define SLPPROT_BYPASS BIT(1) + #define MTK_COREDUMP_SIZE (1024 * 1000) #define MTK_COREDUMP_END "coredump end" #define MTK_COREDUMP_END_LEN (sizeof(MTK_COREDUMP_END)) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 7835170b1d66..842fda0527db 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -3120,9 +3120,13 @@ static int btusb_mtk_setup(struct hci_dev *hdev) case 0x7668: fwname = FIRMWARE_MT7668; break; + case 0x7925: + btusb_mtk_uhw_reg_read(data, MT7925_SLPPROT, &val); + val |= SLPPROT_BYPASS; + btusb_mtk_uhw_reg_write(data, MT7925_SLPPROT, val); + fallthrough; case 0x7922: case 0x7961: - case 0x7925: if (dev_id == 0x7925) snprintf(fw_bin_name, sizeof(fw_bin_name), "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", -- 2.18.0
