[2/2] Bluetooth: btmtksdio: fix up firmware download sequence
diff mbox series

Message ID 51dda3f7e6e3a01b20145c5e879e837cec78b7da.1592463595.git.sean.wang@mediatek.com
State New
Headers show
Series
  • Untitled series #304795
Related show

Commit Message

Sean Wang June 18, 2020, 7:17 a.m. UTC
From: Sean Wang <sean.wang@mediatek.com>

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(-)

Comments

Marcel Holtmann June 19, 2020, 7:35 a.m. UTC | #1
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

Patch
diff mbox series

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 = &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;