linux-kernel - Re: [PATCH net-next 2/2] net: mdio: add amlogic gxl mdio mux support

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Message-ID: <Y8U+1ta6bmt86htm@corigine.com>
Date:   Mon, 16 Jan 2023 13:11:02 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Jerome Brunet <jbrunet@...libre.com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        linux-amlogic@...ts.infradead.org,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Da Xue <da@...sconfused.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 2/2] net: mdio: add amlogic gxl mdio mux support

On Mon, Jan 16, 2023 at 10:16:36AM +0100, Jerome Brunet wrote:
> Add support for the mdio mux and internal phy glue of the GXL SoC
> family
> 
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
>  drivers/net/mdio/Kconfig              |  11 ++
>  drivers/net/mdio/Makefile             |   1 +
>  drivers/net/mdio/mdio-mux-meson-gxl.c | 160 ++++++++++++++++++++++++++
>  3 files changed, 172 insertions(+)
>  create mode 100644 drivers/net/mdio/mdio-mux-meson-gxl.c

Hi Jerome,

please run this patch through checkpatch.

...

> diff --git a/drivers/net/mdio/mdio-mux-meson-gxl.c b/drivers/net/mdio/mdio-mux-meson-gxl.c
> new file mode 100644
> index 000000000000..205095d845ea
> --- /dev/null
> +++ b/drivers/net/mdio/mdio-mux-meson-gxl.c

...

> +static int gxl_enable_internal_mdio(struct gxl_mdio_mux *priv)
> +{

nit: I think void would be a more appropriate return type for this
     function. Likewise gxl_enable_external_mdio()

...

> +static int gxl_mdio_mux_probe(struct platform_device *pdev){

nit: '{' should be at the beginning of a new line

> +	struct device *dev = &pdev->dev;
> +	struct clk *rclk;
> +	struct gxl_mdio_mux *priv;

nit: reverse xmas tree for local variable declarations.

> +	int ret;
> +
> +	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
> +	if (!priv)
> +		return -ENOMEM;

nit: may be it is nicer to use dev_err_probe() here for consistency.

> +	platform_set_drvdata(pdev, priv);
> +
> +	priv->regs = devm_platform_ioremap_resource(pdev, 0);
> +	if (IS_ERR(priv->regs))
> +		return PTR_ERR(priv->regs);

And here.

...