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- From fd3ed33f51c2a586412d35b4f64803f019ab589f Mon Sep 17 00:00:00 2001
- From: Arend Van Spriel <arend.vanspriel@broadcom.com>
- Date: Fri, 15 Jul 2016 12:39:13 +0200
- Subject: [PATCH] brcmfmac: defer DPC processing during probe
- The sdio dpc starts processing when in SDIOD_STATE_DATA. This state was
- entered right after firmware download. This patch moves that transition
- just before enabling sdio interrupt handling thus avoiding watchdog
- expiry which would put the bus to sleep while probing.
- Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
- Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
- Reviewed-by: Franky Lin <franky.lin@broadcom.com>
- Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
- Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
- ---
- drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 7 +++----
- 1 file changed, 3 insertions(+), 4 deletions(-)
- --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
- +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
- @@ -3304,10 +3304,6 @@ static int brcmf_sdio_download_firmware(
- goto err;
- }
-
- - /* Allow full data communication using DPC from now on. */
- - brcmf_sdiod_change_state(bus->sdiodev, BRCMF_SDIOD_DATA);
- - bcmerror = 0;
- -
- err:
- brcmf_sdio_clkctl(bus, CLK_SDONLY, false);
- sdio_release_host(bus->sdiodev->func[1]);
- @@ -4045,6 +4041,9 @@ static void brcmf_sdio_firmware_callback
- }
-
- if (err == 0) {
- + /* Allow full data communication using DPC from now on. */
- + brcmf_sdiod_change_state(bus->sdiodev, BRCMF_SDIOD_DATA);
- +
- err = brcmf_sdiod_intr_register(sdiodev);
- if (err != 0)
- brcmf_err("intr register failed:%d\n", err);
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