Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751983AbaLaIUS (ORCPT ); Wed, 31 Dec 2014 03:20:18 -0500 Received: from mga02.intel.com ([134.134.136.20]:11887 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751950AbaLaIUP (ORCPT ); Wed, 31 Dec 2014 03:20:15 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,671,1413270000"; d="scan'208,223";a="655265934" Message-ID: <54A3B1B4.7090705@linux.intel.com> Date: Wed, 31 Dec 2014 16:20:04 +0800 From: "Fu, Zhonghui" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: brudley@broadcom.com, Arend van Spriel , Franky Lin , meuleman@broadcom.com, kvalo@codeaurora.org, linville@tuxdriver.com, pieterpg@broadcom.com, hdegoede@redhat.com, wens@csie.org, linux-wireless@vger.kernel.org, brcm80211-dev-list@broadcom.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] brcmfmac: avoid duplicated suspend/resume operation Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >From e34419970a07bfcd365f9c66bdfa552188a0cd26 Mon Sep 17 00:00:00 2001 From: Zhonghui Fu 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. Signed-off-by: Zhonghui Fu --- 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 linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/