From: Nachiket Kukade <kukaden@marvell.com>
Date: Fri, 18 Sep 2015 13:40:40 +0000 (-0700)
Subject: Bluetooth: btmrvl: fix firmware dump issue
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=475b9eacc5543eea922431bb8ac4ec761de0e415;p=deliverable%2Flinux.git

Bluetooth: btmrvl: fix firmware dump issue

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 <kukaden@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index b9978a7ba0cc..5f7c9be779b8 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;
 		}