On 02/14/2015 08:40 PM, Fu, Zhonghui wrote:
Any comments to this patch? Can it be accepted?
Thanks,
Zhonghui
On 2015/2/12 11:26, Fu, Zhonghui wrote:
From a05d35ab334c20970c236fb971dae88810078c88 Mon Sep 17 00:00:00 2001
From: Fu Zhonghui <zhonghui.fu@xxxxxxxxxxxxxxx>
Date: Thu, 12 Feb 2015 10:49:35 +0800
Subject: [PATCH v3] 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@xxxxxxxxxxxx>
Signed-off-by: Fu Zhonghui <zhonghui.fu@xxxxxxxxxxxxxxx>
---
Changes in v3:
- Rebase to wireless-drivers-next/master branch
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 7944224..b8832a7 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -1117,9 +1117,13 @@ static int brcmf_ops_sdio_suspend(struct device *dev)
struct brcmf_bus *bus_if;
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;
+
Should it be >= 2 instead of == 2 so that if, in the future, a 3+
SDIO function chip comes out, it's already handled? Not that that
should hold up the patch or anything, just a curiosity.
bus_if = dev_get_drvdata(dev);
sdiodev = bus_if->bus_priv.sdio;
@@ -1148,9 +1152,16 @@ 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);
-- 1.9.1
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