Commit 737cd060 authored by Sean Wang's avatar Sean Wang Committed by Marcel Holtmann
Browse files

Bluetooth: btmtksdio: fix up firmware download sequence 



Data RAM on the device have to be powered on before starting to download
the firmware.

Fixes: 9aebfd4a ("Bluetooth: mediatek: add support for MediaTek MT7663S and MT7668S SDIO devices")
Co-developed-by: default avatarMark Chen <Mark-YW.Chen@mediatek.com>
Signed-off-by: default avatarMark Chen <Mark-YW.Chen@mediatek.com>
Signed-off-by: default avatarSean Wang <sean.wang@mediatek.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent f6451257

drivers/bluetooth/btmtksdio.c

+15 −1
Original line number Diff line number Diff line
@@ -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 = &param;

	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;