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brcm80211: fmac: register a dummy irq handler for SDIO function 2 

When there is data available in dongle for driver to fetch, an
interrupt will be triggered and both SDIO function 1 and 2 will be
flagged by default in bcm4329. These two interrupt flags are
identical and only need to be handled once. Since there is no way
to turn off one flag from the dongle side, a dummy handler for
function 2 interrupt is placed.

Reported-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Alwin Beukers <alwin@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Franky Lin 2011-12-16 18:36:53 -08:00 committed by John W. Linville
parent 1ae00421e7
commit fbf59108f9
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
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@ -51,12 +51,18 @@ static void brcmf_sdioh_irqhandler(struct sdio_func *func)
sdio_claim_host(func);
}
/* dummy handler for SDIO function 2 interrupt */
static void brcmf_sdioh_dummy_irq_handler(struct sdio_func *func)
{
}
int brcmf_sdcard_intr_reg(struct brcmf_sdio_dev *sdiodev)
{
brcmf_dbg(TRACE, "Entering\n");
sdio_claim_host(sdiodev->func[1]);
sdio_claim_irq(sdiodev->func[1], brcmf_sdioh_irqhandler);
sdio_claim_irq(sdiodev->func[2], brcmf_sdioh_dummy_irq_handler);
sdio_release_host(sdiodev->func[1]);
return 0;
@ -67,6 +73,7 @@ int brcmf_sdcard_intr_dereg(struct brcmf_sdio_dev *sdiodev)
brcmf_dbg(TRACE, "Entering\n");
sdio_claim_host(sdiodev->func[1]);
sdio_release_irq(sdiodev->func[2]);
sdio_release_irq(sdiodev->func[1]);
sdio_release_host(sdiodev->func[1]);