Thread (5 messages) flat view 5 messages, 2 authors, 2015-09-21
STALE3983d

[PATCH 1/2] Bluetooth: btmrvl: fix firmware dump issue

From: Amitkumar Karwar <hidden>
Date: 2015-09-18 13:40:40
Subsystem: bluetooth drivers, the rest · Maintainers: Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds

From: Nachiket Kukade <redacted>

First firmware dump attempt from user works fine, but firmware goes
into bad state after this. Subsequent attempts fails.

As required by the firmware dump implementation, this change writes
FW_DUMP_READ_DONE value to dump ctrl register to address this issue.

Signed-off-by: Nachiket Kukade <redacted>
Signed-off-by: Amitkumar Karwar <redacted>
---
 drivers/bluetooth/btmrvl_sdio.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index b9978a7..5f7c9be 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -1278,6 +1278,12 @@ static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv)
 
 		if (memory_size == 0) {
 			BT_INFO("Firmware dump finished!");
+			sdio_writeb(card->func, FW_DUMP_READ_DONE,
+				    card->reg->fw_dump_ctrl, &ret);
+			if (ret) {
+				BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
+				goto done;
+			}
 			break;
 		}
 
-- 
1.8.1.4
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