diff options
| author | Sean Wang <sean.wang@mediatek.com> | 2020-06-19 19:52:02 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-19 08:16:07 +0200 |
| commit | a728697b74b78c1ec696afdb211a6d50247e3f74 (patch) | |
| tree | 85803bb127f42bf802210f94604b938b28272cab /drivers/bluetooth | |
| parent | ecab4ef93ce6fa9f0fb5a50c72d6e0f9aa0dad4d (diff) | |
Bluetooth: btmtksdio: fix up firmware download sequence
[ Upstream commit 737cd06072a72e8984e41af8e5919338d0c5bf2b ]
Data RAM on the device have to be powered on before starting to download
the firmware.
Fixes: 9aebfd4a2200 ("Bluetooth: mediatek: add support for MediaTek MT7663S and MT7668S SDIO devices")
Co-developed-by: Mark Chen <Mark-YW.Chen@mediatek.com>
Signed-off-by: Mark Chen <Mark-YW.Chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btmtksdio.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 813338288453..b7de7cb8cca9 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -684,7 +684,7 @@ static int mtk_setup_firmware(struct hci_dev *hdev, const char *fwname) const u8 *fw_ptr; size_t fw_size; int err, dlen; - u8 flag; + u8 flag, param; err = request_firmware(&fw, fwname, &hdev->dev); if (err < 0) { @@ -692,6 +692,20 @@ static int mtk_setup_firmware(struct hci_dev *hdev, const char *fwname) return err; } + /* Power on data RAM the firmware relies on. */ + param = 1; + wmt_params.op = MTK_WMT_FUNC_CTRL; + wmt_params.flag = 3; + wmt_params.dlen = sizeof(param); + wmt_params.data = ¶m; + wmt_params.status = NULL; + + err = mtk_hci_wmt_sync(hdev, &wmt_params); + if (err < 0) { + bt_dev_err(hdev, "Failed to power on data RAM (%d)", err); + return err; + } + fw_ptr = fw->data; fw_size = fw->size; |