From c1c999e27ce5681c5b43c7f82947030e7134f1d0 Mon Sep 17 00:00:00 2001 From: Andreas Fenkart Date: Mon, 22 Apr 2013 11:10:22 +0200 Subject: [PATCH] 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 Signed-off-by: Gustavo Padovan --- drivers/bluetooth/btmrvl_sdio.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c index 0e9e8e9..758d5ac 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; } -- 2.7.4