Re: [PATCH net-next v4 2/3] net: phy: Add helper for getting tx amplitude gain
From: Andrew Lunn
Date: Wed Feb 12 2025 - 08:15:30 EST
> @@ -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.
> +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.
> +{
> + 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.
> + default:
> + return -EINVAL;
> + }
> +}
> +EXPORT_SYMBOL(phy_get_tx_amplitude_gain);
I would prefer EXPORT_SYMBOL_GPL, but up to you.
Andrew
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pw-bot: cr