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 b9978a7ba0cc9b9883d2bdd95168f81408f6cc60..5f7c9be779b8d3898f572d2803386f75342ffa3b 100644 (file)
--- 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;
                }