| Message ID | 51dda3f7e6e3a01b20145c5e879e837cec78b7da.1592463595.git.sean.wang@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/2] Bluetooth: btusb: fix up firmware download sequence | expand |
Hi Sean, > 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> > --- > drivers/bluetooth/btmtksdio.c | 16 +++++++++++++++- > 1 file changed, 15 insertions(+), 1 deletion(-) the patch doesn’t apply to bluetooth-next tree. Regards Marcel
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 519788c442ca..11494cd2a982 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -685,7 +685,7 @@ 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) { @@ -693,6 +693,20 @@ 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;