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Message-ID: <20210311164711.GA892053@BV030612LT>
Date:   Thu, 11 Mar 2021 18:47:11 +0200
From:   Cristian Ciocaltea <cristian.ciocaltea@...il.com>
To:     Philipp Zabel <pza@...gutronix.de>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Andreas Färber <afaerber@...e.de>,
        Manivannan Sadhasivam <mani@...nel.org>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-actions@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] net: ethernet: actions: Add Actions Semi Owl
 Ethernet MAC driver

Hi Philipp,

Thanks for your quick review!

I will incorporate the indicated changes in the next patch revision.

Kind regards,
Cristi

On Thu, Mar 11, 2021 at 07:43:36AM +0100, Philipp Zabel wrote:
> Hi Cristian,
> 
> On Thu, Mar 11, 2021 at 03:20:13AM +0200, Cristian Ciocaltea wrote:
> > Add new driver for the Ethernet MAC used on the Actions Semi Owl
> > family of SoCs.
> > 
> > Currently this has been tested only on the Actions Semi S500 SoC
> > variant.
> > 
> > Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...il.com>
> > ---
> [...]
> > diff --git a/drivers/net/ethernet/actions/owl-emac.c b/drivers/net/ethernet/actions/owl-emac.c
> > new file mode 100644
> > index 000000000000..ebd8ea88bca4
> > --- /dev/null
> > +++ b/drivers/net/ethernet/actions/owl-emac.c
> > @@ -0,0 +1,1660 @@
> [...]
> > +static int owl_emac_probe(struct platform_device *pdev)
> > +{
> [...]
> > +	priv->reset = devm_reset_control_get(dev, NULL);
> 
> Please use
> 
> 	priv->reset = devm_reset_control_get_exclusive(dev, NULL);
> 
> instead, to explicitly state that the driver requires exclusive
> control over the reset line.
> 
> > +	if (IS_ERR(priv->reset)) {
> > +		ret = PTR_ERR(priv->reset);
> > +		dev_err(dev, "failed to get reset control: %d\n", ret);
> > +		return ret;
> 
> You could use:
> 
> 		return dev_err_probe(dev, PTR_ERR(priv->reset),
> 				     "failed to get reset control");
> 
> regards
> Philipp

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