linux-kernel - Re: [PATCH v3 net-next 4/6] net: ethernet: ti: am65-cpsw: Add suspend/resume support

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Message-ID: <Y35bahTL2cMgXM1F@lunn.ch>
Date:   Wed, 23 Nov 2022 18:42:02 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Roger Quadros <rogerq@...nel.org>
Cc:     davem@...emloft.net, maciej.fijalkowski@...el.com, kuba@...nel.org,
        edumazet@...gle.com, pabeni@...hat.com, vigneshr@...com,
        linux-omap@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 net-next 4/6] net: ethernet: ti: am65-cpsw: Add
 suspend/resume support

> +static int am65_cpsw_nuss_ndev_add_tx_napi(struct am65_cpsw_common *common);
> +

Please move the code around so you don't need this. Ideally as a patch
which only does the move. It is then trivial to review.

>  static void am65_cpsw_port_set_sl_mac(struct am65_cpsw_port *slave,
>  				      const u8 *dev_addr)
>  {
> @@ -555,11 +558,24 @@ static int am65_cpsw_nuss_ndo_slave_open(struct net_device *ndev)
>  	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
>  	struct am65_cpsw_port *port = am65_ndev_to_port(ndev);
>  	int ret, i;
> +	u32 reg;
>  
>  	ret = pm_runtime_resume_and_get(common->dev);
>  	if (ret < 0)
>  		return ret;
>  
> +	/* Idle MAC port */
> +	cpsw_sl_ctl_set(port->slave.mac_sl, CPSW_SL_CTL_CMD_IDLE);
> +	cpsw_sl_wait_for_idle(port->slave.mac_sl, 100);
> +	cpsw_sl_ctl_reset(port->slave.mac_sl);
> +
> +	/* soft reset MAC */
> +	cpsw_sl_reg_write(port->slave.mac_sl, CPSW_SL_SOFT_RESET, 1);
> +	mdelay(1);
> +	reg = cpsw_sl_reg_read(port->slave.mac_sl, CPSW_SL_SOFT_RESET);
> +	if (reg)
> +		dev_info(common->dev, "mac reset not yet done\n");

Should that be dev_info()? dev_dbg()

       Andrew