Subject: Re: [PATCH 2/2] brcmfmac: keep WiFi chip's power during system suspension

From: "Fu, Zhonghui" <[email-masked]>
Date: Fri, 01 May 2015 14:26:32 +0800

On 2015/4/27 16:53, Arend van Spriel wrote:
> On 04/27/15 07:06, Fu, Zhonghui wrote:
>> Need to keep the power supply for WiFi chip during system suspension.
>> Otherwise, the context of WiFi chip will be lost.
>
> I already submitted a patch doing exactly the same thing [1]

OK, please ignore this patch.

What's the target kernel version of your patch?

Thanks,
Zhonghui
>
> Regards,
> Arend
>
> [1] https://patchwork.kernel.org/patch/6217391/
>
>> Signed-off-by: Zhonghui Fu<[email-masked]>
>> ---
>>   drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c |   10 ++++++----
>>   1 files changed, 6 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
>> index fdf8feb..03d3671 100644
>> --- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
>> +++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
>> @@ -1251,15 +1251,17 @@ static int brcmf_ops_sdio_suspend(struct device *dev)
>>       brcmf_sdiod_freezer_on(sdiodev);
>>       brcmf_sdio_wd_timer(sdiodev->bus, 0);
>>
>> +    sdio_flags = MMC_PM_KEEP_POWER;
>>       if (sdiodev->wowl_enabled) {
>> -        sdio_flags = MMC_PM_KEEP_POWER;
>>           if (sdiodev->pdata->oob_irq_supported)
>>               enable_irq_wake(sdiodev->pdata->oob_irq_nr);
>>           else
>> -            sdio_flags = MMC_PM_WAKE_SDIO_IRQ;
>> -        if (sdio_set_host_pm_flags(sdiodev->func[1], sdio_flags))
>> -            brcmf_err("Failed to set pm_flags %x\n", sdio_flags);
>> +            sdio_flags |= MMC_PM_WAKE_SDIO_IRQ;
>>       }
>> +
>> +    if (sdio_set_host_pm_flags(sdiodev->func[1], sdio_flags))
>> +        brcmf_err("Failed to set pm_flags %x\n", sdio_flags);
>> +
>>       return 0;
>>   }
>>
>> -- 1.7.1
>>
>