[PATCH v2 06/11] net: ethernet: mtk_eth_soc: only write values if needed

[Russell King (Oracle)]

On Tue, Feb 07, 2023 at 02:21:25PM +0000, Daniel Golle wrote:
> @@ -106,16 +101,21 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
>  		regmap_update_bits(mpcs->regmap, mpcs->ana_rgc3,
>  				   RG_PHY_SPEED_3_125G, rgc3);
>  
> +		/* Setup the link timer and QPHY power up inside SGMIISYS */
> +		link_timer = phylink_get_link_timer_ns(interface);
> +		if (link_timer < 0)
> +			return link_timer;

I know I asked for this to be placed inside this if(), but I'd prefer it
if it were before any register state was touched, so if it returns an
error then no register state is affected by the pcs_config() call.

IIRC, we don't touch any state before the if(), so it should be a
matter of placing it as one of the first things in the if() block.

Thanks!

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