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Date: Wed, 31 Dec 2014 10:56:07 +0100 From: Arend van Spriel <arend@...adcom.com> To: "Fu, Zhonghui" <zhonghui.fu@...ux.intel.com> CC: <brudley@...adcom.com>, Franky Lin <frankyl@...adcom.com>, <meuleman@...adcom.com>, <kvalo@...eaurora.org>, <linville@...driver.com>, <pieterpg@...adcom.com>, <hdegoede@...hat.com>, <wens@...e.org>, <linux-wireless@...r.kernel.org>, <brcm80211-dev-list@...adcom.com>, <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] brcmfmac: avoid duplicated suspend/resume operation On 12/31/14 09:20, Fu, Zhonghui wrote: > From e34419970a07bfcd365f9c66bdfa552188a0cd26 Mon Sep 17 00:00:00 2001 > From: Zhonghui Fu<zhonghui.fu@...ux.intel.com> > Date: Mon, 29 Dec 2014 21:25:31 +0800 > Subject: [PATCH] brcmfmac: avoid duplicated suspend/resume operation > > WiFi chip has 2 SDIO functions, and PM core will trigger > twice suspend/resume operations for one WiFi chip to do > the same things. This patch avoid this case. We have a patch queued up for this as well, but this one looks good enough although I personally prefer container_of() instead of dev_to_sdio_func(). Acked-by: Arend van Spriel <arend@...adcom.com> > Signed-off-by: Zhonghui Fu<zhonghui.fu@...ux.intel.com> > --- > drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 19 +++++++++++++++++-- > 1 files changed, 17 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c > index 3c06e93..eee7818 100644 > --- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c > +++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c > @@ -1139,11 +1139,18 @@ void brcmf_sdio_wowl_config(struct device *dev, bool enabled) > static int brcmf_ops_sdio_suspend(struct device *dev) > { > struct brcmf_bus *bus_if = dev_get_drvdata(dev); > - struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; > + struct brcmf_sdio_dev *sdiodev; > mmc_pm_flag_t sdio_flags; > + struct sdio_func *func = dev_to_sdio_func(dev); > > brcmf_dbg(SDIO, "Enter\n"); > > + if (func->num == 2) { > + return 0; > + } > + > + sdiodev = bus_if->bus_priv.sdio; > + > atomic_set(&sdiodev->suspend, true); > > if (sdiodev->wowl_enabled) { > @@ -1164,9 +1171,17 @@ static int brcmf_ops_sdio_suspend(struct device *dev) > static int brcmf_ops_sdio_resume(struct device *dev) > { > struct brcmf_bus *bus_if = dev_get_drvdata(dev); > - struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; > + struct brcmf_sdio_dev *sdiodev; > + struct sdio_func *func = dev_to_sdio_func(dev); > > brcmf_dbg(SDIO, "Enter\n"); > + > + if (func->num == 2) { > + return 0; > + } > + > + sdiodev = bus_if->bus_priv.sdio; > + > if (sdiodev->pdata->oob_irq_supported) > disable_irq_wake(sdiodev->pdata->oob_irq_nr); > brcmf_sdio_wd_timer(sdiodev->bus, BRCMF_WD_POLL_MS); > -- 1.7.1 > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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