linux-kernel - Re: [PATCH 2/2] i2c: fsi: Prevent adding adapters for ports without dts nodes

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Message-ID: <CAHp75VfRj4kA1yrhkqak9zMJuES8Udk3YuzMKHXyh+hwrB6rSQ@mail.gmail.com>
Date:   Mon, 8 Jun 2020 19:31:12 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Eddie James <eajames@...ux.ibm.com>
Cc:     linux-i2c <linux-i2c@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        wsa@...nel.org, Joel Stanley <joel@....id.au>
Subject: Re: [PATCH 2/2] i2c: fsi: Prevent adding adapters for ports without
 dts nodes

On Mon, Jun 8, 2020 at 7:05 PM Eddie James <eajames@...ux.ibm.com> wrote:
>
> Ports should be defined in the devicetree if they are to be enabled on
> the system.

...

>         for (port_no = 0; port_no < ports; port_no++) {
>                 np = fsi_i2c_find_port_of_node(dev->of_node, port_no);
> -               if (np && !of_device_is_available(np))

> +               /* Do not add port if it is not described in the device tree */
> +               if (!np)
> +                       continue;

I believe this is redundant, since below will do the same second time.

> +               /* Do not add port if it is described as disabled */
> +               if (!of_device_is_available(np))
>                         continue;

-- 
With Best Regards,
Andy Shevchenko