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* [PATCH v2 1/2] Bluetooth: btusb: fix up firmware download sequence
@ 2020-06-19 17:52 sean.wang
  2020-06-19 17:52 ` [PATCH v2 2/2] Bluetooth: btmtksdio: " sean.wang
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: sean.wang @ 2020-06-19 17:52 UTC (permalink / raw)
  To: marcel, johan.hedberg
  Cc: linux-bluetooth, linux-mediatek, linux-kernel, Sean Wang, Mark Chen

From: Sean Wang <sean.wang@mediatek.com>

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

v1->v2:
	rebased to bluetooth-next

Fixes: a1c49c434e15 ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB 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/btusb.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index c7cc8e594166..e42fdd625eb0 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2934,7 +2934,7 @@ static int btusb_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) {
@@ -2942,6 +2942,20 @@ static int btusb_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 = BTMTK_WMT_FUNC_CTRL;
+	wmt_params.flag = 3;
+	wmt_params.dlen = sizeof(param);
+	wmt_params.data = &param;
+	wmt_params.status = NULL;
+
+	err = btusb_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;
 
-- 
2.25.1

^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2020-06-23 12:38 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-06-19 17:52 [PATCH v2 1/2] Bluetooth: btusb: fix up firmware download sequence sean.wang
2020-06-19 17:52 ` [PATCH v2 2/2] Bluetooth: btmtksdio: " sean.wang
2020-06-23 12:38   ` Marcel Holtmann
2020-06-22  7:15 ` [PATCH v2 1/2] Bluetooth: btusb: " Marcel Holtmann
2020-06-22 18:28   ` sean.wang
2020-06-23 12:38     ` Marcel Holtmann
2020-06-23 12:38 ` Marcel Holtmann

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