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* [PATCH v2] brcmfmac: avoid duplicated suspend/resume operation
@ 2015-02-09  4:43 Fu, Zhonghui
  2015-02-09  8:36 ` Arend van Spriel
  0 siblings, 1 reply; 3+ messages in thread
From: Fu, Zhonghui @ 2015-02-09  4:43 UTC (permalink / raw)
  To: Kalle Valo, brudley, Arend van Spriel, Franky Lin, meuleman,
	linville, pieterpg, hdegoede, wens, linux-wireless,
	brcm80211-dev-list, netdev, linux-kernel@vger.kernel.org

>From ff39ed4af9f1c50358fe92ec4c8eaac9db183e00 Mon Sep 17 00:00:00 2001
From: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Date: Mon, 26 Jan 2015 10:13:21 +0800
Subject: [PATCH v2] 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.

Acked-by: Arend van Spriel<arend@broadcom.com>
Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
---
Changes in v2:
 - Remove two "Acked-by" lines

 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 9880dae..618b545 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -1139,11 +1139,17 @@ 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 +1170,16 @@ 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 && 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

^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2015-02-12  3:30 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2015-02-09  4:43 [PATCH v2] brcmfmac: avoid duplicated suspend/resume operation Fu, Zhonghui
2015-02-09  8:36 ` Arend van Spriel
2015-02-12  3:30   ` Fu, Zhonghui

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