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authorAndreas Fenkart <andreas.fenkart@streamunlimited.com>2013-04-22 11:10:22 +0200
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2013-04-24 01:55:51 +0200
commitc1c999e27ce5681c5b43c7f82947030e7134f1d0 (patch)
treee8820bcc9b74a65a1f6f7a4f4b56f84b0850b567 /drivers/bluetooth
parentBluetooth: btmrvl: use native helpers for debugfs (diff)
downloadlinux-c1c999e27ce5681c5b43c7f82947030e7134f1d0.tar.xz
linux-c1c999e27ce5681c5b43c7f82947030e7134f1d0.zip
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>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btmrvl_sdio.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 0e9e8e95916d..758d5ac81ecc 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -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;
}