[PATCH 1/2] mt76: mt7921s: make pm->suspended usage consistent
sean.wang at mediatek.com
sean.wang at mediatek.com
Sat Dec 11 09:14:42 PST 2021
From: Sean Wang <sean.wang at mediatek.com>
>> From: Sean Wang <sean.wang at mediatek.com>
>>
>> Update pm->suspended usage to be consistent with mt7921e driver.
>>
>> Signed-off-by: Sean Wang <sean.wang at mediatek.com>
>> ---
>> drivers/net/wireless/mediatek/mt76/mt7921/sdio.c | 7 +++++--
>> 1 file changed, 5 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c b/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c
>> index 84be229a899d..44ee9369f6bf 100644
>> --- a/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c
>> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c
>> @@ -278,7 +278,6 @@ static int mt7921s_resume(struct device *__dev)
>> struct mt76_dev *mdev = &dev->mt76;
>> int err;
>>
>> - pm->suspended = false;
>> clear_bit(MT76_STATE_SUSPEND, &mdev->phy.state);
>>
>> err = mt7921_mcu_drv_pmctrl(dev);
>> @@ -294,7 +293,11 @@ static int mt7921s_resume(struct device *__dev)
>> if (!pm->ds_enable)
>> mt76_connac_mcu_set_deep_sleep(mdev, false);
>>
>> - return mt76_connac_mcu_set_hif_suspend(mdev, false);
>> + err = mt76_connac_mcu_set_hif_suspend(mdev, false);
>
>should we check return value here? Something like:
>
> if (err)
> return err;
>
> pm->suspended = false;
> return 0;
>
>Or, is the chip up even if mt76_connac_mcu_set_hif_suspend() fails?
yes, chip is eventually up again by recovered with the following wifi reset
with current logic, if do so (not mark pm->suspended back as false to show suspend/resume is over),
the pm runtime would not be enabled again after the wifi reset
>> +
>> + pm->suspended = false;
>> +
>> + return err;
>> }
>>
>> static const struct dev_pm_ops mt7921s_pm_ops = {
>> --
>> 2.25.1
>>
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