linux-kernel - Re: [PATCH v2 3/6] stmmac: pci: Make stmmac_pci_find_phy

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Message-ID: <CAHp75VdMB3pYBfvz40xZoDd8Ey162RN+moy3X2OZ_cBf3wW2rg@mail.gmail.com>
Date:   Sat, 27 May 2017 16:25:29 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Jan Kiszka <jan.kiszka@...mens.com>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/6] stmmac: pci: Make stmmac_pci_find_phy_addr truly generic

On Fri, May 26, 2017 at 7:07 PM, Jan Kiszka <jan.kiszka@...mens.com> wrote:
> Move the special case for the early Galileo firmware into
> quark_default_setup. This allows to use stmmac_pci_find_phy_addr for
> non-quark cases.

>         ret = stmmac_pci_find_phy_addr(pdev, info);
> -       if (ret < 0)
> -               return ret;
> +       if (ret < 0) {
> +               /*
> +                * Galileo boards with old firmware don't support DMI. We always
> +                * use 1 here as PHY address, so at least the first found MAC
> +                * controller would be probed.
> +                */
> +               if (!dmi_get_system_info(DMI_BOARD_NAME))
> +                       ret = 1;
> +               else
> +                       return ret;

Perhaps

/* Return error to the caller on DMI enabled boards */
if (dmi_...)
 return ret;
/*
 * Comment goes here, I suppose.
 */
ret = 1;

> +       }

-- 
With Best Regards,
Andy Shevchenko