Re: [PATCH net-next v4 2/3] net: phy: Add helper for getting tx amplitude gain

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Am Wed, Feb 12, 2025 at 02:15:08PM +0100 schrieb Andrew Lunn:
> > @@ -3133,12 +3126,12 @@ static int phy_get_int_delay_property(struct device *dev, const char *name)
> >  s32 phy_get_internal_delay(struct phy_device *phydev, struct device *dev,
> >  			   const int *delay_values, int size, bool is_rx)
> >  {
> > -	s32 delay;
> > -	int i;
> > +	u32 delay;
> > +	int i, ret;
> 
> Networking uses reverse christmass tree. So you need to sort these two
> longest first.
>
Will fix it.

> > +int phy_get_tx_amplitude_gain(struct phy_device *phydev, struct device *dev,
> > +			      enum ethtool_link_mode_bit_indices linkmode,
> > +			      u32 *val)
> 
> Since this is an exported symbol, it would be nice to have some
> kerneldoc for it.
>
Yes.

> > +{
> > +	switch (linkmode) {
> > +	case ETHTOOL_LINK_MODE_100baseT_Full_BIT:
> > +		return phy_get_u32_property(dev,
> > +					    "tx-amplitude-100base-tx-percent",
> > +					    val);
> 
> So no handling of the default value here. This would be the logical
> place to have the 100 if the value is not in device tree.
> 
I will get rid of the default value.

> > +	default:
> > +		return -EINVAL;
> > +	}
> > +}
> > +EXPORT_SYMBOL(phy_get_tx_amplitude_gain);
> 
> I would prefer EXPORT_SYMBOL_GPL, but up to you.
>
Ok.

Best regards,
Dimitri Fedrau




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