netdev - Re: [PATCH 3/3] net-next: stmmac: dwmac-sun8i: choose internal PHY via compatible

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Date:   Fri, 28 Jul 2017 17:49:55 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Corentin Labbe <clabbe.montjoie@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Russell King <linux@...linux.org.uk>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        alexandre.torgue@...com, Icenowy Zheng <icenowy@...c.io>,
        netdev <netdev@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [PATCH 3/3] net-next: stmmac: dwmac-sun8i: choose internal PHY
 via compatible

On Fri, Jul 28, 2017 at 5:28 PM, Corentin Labbe
<clabbe.montjoie@...il.com> wrote:
> The current way to find if the phy is internal is to compare DT phy-mode
> and emac_variant/internal_phy.
> But it will negate a possible future SoC where an external PHY use the
> same phy mode than the internal one.
>
> This patch adds a new way to find if the PHY is internal, via its
> compatible.
>
> Since the phy_mode of the internal PHY does need to be know, the
> variant internal_phy member is converted to a boolean.
>
> Signed-off-by: Corentin Labbe <clabbe.montjoie@...il.com>
> ---
>  drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 16 ++++++++++------
>  1 file changed, 10 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
> index fffd6d5fc907..04f7ddd802b0 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
> @@ -48,7 +48,7 @@
>   */
>  struct emac_variant {
>         u32 default_syscon_value;
> -       int internal_phy;
> +       bool internal_phy;

Nit: please add a verb to the name, like "has_internal_phy",
or even "soc_has_internal_phy". This makes it clear what this
property represents.

ChenYu