Hi Arend,
Where to find your patch for this?
Thanks,
Zhonghui
On 2014/12/31 17:56, Arend van Spriel wrote:
> On 12/31/14 09:20, Fu, Zhonghui wrote:
>> From e34419970a07bfcd365f9c66bdfa552188a0cd26 Mon Sep 17 00:00:00 2001
>> From: Zhonghui Fu<zhonghui.fu@xxxxxxxxxxxxxxx>
>> 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@xxxxxxxxxxxx>
>> Signed-off-by: Zhonghui Fu<zhonghui.fu@xxxxxxxxxxxxxxx>
>> ---
>> 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
>>
>
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