Re: [PATCH net-next v2 2/2] net: ethernet: socionext: add AVE ethernet driver

From: Kunihiko Hayashi
Date: Thu Oct 19 2017 - 06:35:48 EST


On Thu, 19 Oct 2017 09:29:03 +0900 <yamada.masahiro@xxxxxxxxxxxxx> wrote:

> 2017-10-18 19:23 GMT+09:00 Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>:
> > On Mon, 16 Oct 2017 00:08:21 +0900 <yamada.masahiro@xxxxxxxxxxxxx> wrote:
>
> >> priv->rst = devm_reset_control_get_optional_shared(dev, NULL);
> >> if (IS_ERR(priv->rst))
> >> return PTR_ERR(priv->rst);
> >
> > The clk and reset are optional in the driver.
> > Referring to your suggested method, I'll fix the part of clk and reset.
> >
>
>
> Why is clk optional?

Indeed. My check point was wrong.
This clk property should be treated as "required".

In v2, the clock enabling code moved to ndo_init().
Although probing the driver succeeds without clk,
enabling the driver fails clearly.

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Best Regards,
Kunihiko Hayashi