[PATCH 1/2] mt76: mt7921: add debugfs knob for performing wifi reset

Lorenzo Bianconi lorenzo at kernel.org
Thu Apr 15 16:07:19 BST 2021


> From: Sean Wang <sean.wang at mediatek.com>
> 
> >> From: Sean Wang <sean.wang at mediatek.com>
> >>
> >> Introduce chip_reset knob in mt7921 debugfs to export a way to users
> >> able to trigger wifi reset.
> >>
> >> Signed-off-by: Sean Wang <sean.wang at mediatek.com>
> >> ---
> >>  drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c | 11 +++++++++++
> >>  1 file changed, 11 insertions(+)
> >>
> >> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
> >> b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
> >> index 024524173115..1342a0b645e3 100644
> >> --- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
> >> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
> >> @@ -302,6 +302,16 @@ static int mt7921_config(void *data, u64 val)
> >>
> >>  DEFINE_DEBUGFS_ATTRIBUTE(fops_config, NULL, mt7921_config, "%lld\n");
> >>
> >> +static int mt7921_chip_reset(void *data, u64 val) {
> >> +	struct mt7921_dev *dev = data;
> >> +
> >> +	mt7921_reset(&dev->mt76);
> >> +
> >> +	return 0;
> >> +}
> >> +DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7921_chip_reset,
> >> +"%lld\n");
> >
> >can we use chip_config for this?
> 
> i think we can resue the the knob for chip_reset. i will do it in the next version.

ack, I agree. Please rename the chip_config in something lile reset or similar.

Thanks,
Lorenzo

> 
> >
> >Regards,
> >Lorenzo
> >
> >> +
> >>  int mt7921_init_debugfs(struct mt7921_dev *dev)  {
> >>	struct dentry *dir;
> >> @@ -322,6 +332,7 @@ int mt7921_init_debugfs(struct mt7921_dev *dev)
> >>	debugfs_create_file("idle-timeout", 0600, dir, dev,
> >>			    &fops_pm_idle_timeout);
> >>	debugfs_create_file("chip_config", 0600, dir, dev, &fops_config);
> >> +	debugfs_create_file("chip_reset", 0600, dir, dev, &fops_reset);
> >>
> >>	return 0;
> >>  }
> >> --
> >> 2.25.1
> >>
> >
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