Commit cb9d61e5 authored by Aniket Nagarnaik's avatar Aniket Nagarnaik Committed by Kalle Valo
Browse files

mwifiex: claim sdio bus while downloading the firmware



Our 8887 A2 chip can have separate firmware images for
bluetooth and WLAN. We observed an issue during parallel
downloading of these images by btmrvl and mwifiex drivers.

This patch claims sdio bus before starting of the firmware
download in mwifiex and releases it after completion to
fix the problem.
Signed-off-by: default avatarAniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 2375fa2b
......@@ -920,6 +920,8 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
if (!fwbuf)
return -ENOMEM;
sdio_claim_host(card->func);
/* Perform firmware data transfer */
do {
/* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
......@@ -1024,6 +1026,8 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
offset += txlen;
} while (true);
sdio_release_host(card->func);
mwifiex_dbg(adapter, MSG,
"info: FW download over, size %d bytes\n", offset);
......
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