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Bluetooth: btmrvl: release lock while waiting for fw download complete 

If not winner, driver must release the sdio host lock, so the fw
download can progress. While holding the lock fw download is stalled
and the following error is produced:

[  235.746015] Bluetooth: FW failed to be active in time!
[  235.752799] Bluetooth: Downloading firmware failed!

Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Andreas Fenkart 2013-04-22 11:10:22 +02:00 committed by Gustavo Padovan
parent 9da226c791
commit c1c999e27c
1 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/bluetooth/btmrvl_sdio.c
View File

@ -234,7 +234,10 @@ static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
/* Wait for firmware to become ready */
for (tries = 0; tries < pollnum; tries++) {
if (btmrvl_sdio_read_fw_status(card, &firmwarestat) < 0)
sdio_claim_host(card->func);
ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
sdio_release_host(card->func);
if (ret < 0)
continue;
if (firmwarestat == FIRMWARE_READY) {
@ -882,13 +885,14 @@ static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
BT_ERR("card or function is NULL!");
return -EINVAL;
}
sdio_claim_host(card->func);
if (!btmrvl_sdio_verify_fw_download(card, 1)) {
BT_DBG("Firmware already downloaded!");
goto done;
return 0;
}
sdio_claim_host(card->func);
/* Check if other function driver is downloading the firmware */
fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
if (ret) {
@ -918,15 +922,17 @@ static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
}
}
sdio_release_host(card->func);
if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
BT_ERR("FW failed to be active in time!");
ret = -ETIMEDOUT;
goto done;
return -ETIMEDOUT;
}
return 0;
done:
sdio_release_host(card->func);
return ret;
}