Re: [PATCH v2 6/6] net: phy: DP83640: Add fiber mode enabling/disabling from device tree

["Russell King (Oracle)" <linux@xxxxxxxxxxxxxxx>]

On Tue, Feb 27, 2024 at 10:39:45AM +0100, Bastien Curutchet wrote:
> @@ -1141,6 +1147,17 @@ static int dp83640_config_init(struct phy_device *phydev)
>  	val = phy_read(phydev, PCFCR) & ~PCF_EN;
>  	phy_write(phydev, PCFCR, val);
>  
> +	if (dp83640->fiber != FIBER_MODE_DEFAULT) {
> +		val = phy_read(phydev, PCSR) & ~FX_EN;
> +		if (dp83640->fiber == FIBER_MODE_ENABLE)
> +			val |= FX_EN;
> +		phy_write(phydev, PCSR, val);

		val = 0;
		if (dp83640->fiber == FIBER_MODE_ENABLE)
			val = FX_EN;

		phy_modify(phydev, PCSR, FX_EN, val);

> +
> +		/* Write SOFT_RESET bit to ensure configuration */
> +		val = phy_read(phydev, PHYCR2) | SOFT_RESET;
> +		phy_write(phydev, PHYCR2, val);

		phy_set_bits(phydev, PHYCR2, SOFT_RESET);

...
> +#else
> +static int dp83640_of_init(struct phy_device *phydev)
> +{
> +	dp83640->fiber = FIBER_MODE_DEFAULT;

This hasn't been build tested - dp83640 won't exist here.

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