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From: Trent Piepho <trent.piepho@igorinstitute.com>
To: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Barebox List <barebox@lists.infradead.org>
Subject: Re: [PATCH v1 2/2] net: phy: micrel: port clock select support
Date: Wed, 13 Oct 2021 01:48:20 -0700
Message-ID: <CAMHeXxMTxSWb_evKksZVZkUxJoYF5DS0amDKaAOGhJ3f5pORAQ@mail.gmail.com> (raw)
In-Reply-To: <20211013072858.GC14971@pengutronix.de>

On Wed, Oct 13, 2021 at 12:29 AM Oleksij Rempel <o.rempel@pengutronix.de> wrote:
> > Note that not just KSZ8081 has this bit.  Also KSZ8021, KSZ8031, and
> > KSZ8051, which has the existing different method to handle it, as
> > described earlier.
>
> ok, i'll sync all of this PHYs with the state of the kernel driver.
> The board fixups should be removed by someone who can confirm it.

If you copy the entire kernel driver you will massively bloat this
code with stuff that is totally unused.

> > > +static int kszphy_rmii_clk_sel(struct phy_device *phydev, bool val)
> > > +{
> > > +       int ctrl;
> > > +
> > > +       ctrl = phy_read(phydev, MII_KSZPHY_CTRL);
> > > +       if (ctrl < 0)
> > > +               return ctrl;
> > > +
> > > +       if (val)
> > > +               ctrl |= KSZPHY_RMII_REF_CLK_SEL;
> > > +       else
> > > +               ctrl &= ~KSZPHY_RMII_REF_CLK_SEL;
> > > +
> > > +       return phy_write(phydev, MII_KSZPHY_CTRL, ctrl);
> > > +}
> >
> > phy_set_bits(phydev, MII_KSZPHY_CTRL, KSZ8051_RMII_50MHZ_CLK);
>
> No, it should be synced with kernel not in the opposite way.

If you want the code to match, then improve the kernel code rather
than make Barebox code worse.  phy_set_bits, phy_clear_bits and
phy_modify exist.  One can not use them if a kernel driver has not
been refactored to use them?

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  reply	other threads:[~2021-10-13 11:00 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-12 10:08 [PATCH v1 1/2] include/phy: add driver_data to resume more of kernel code Oleksij Rempel
2021-10-12 10:08 ` [PATCH v1 2/2] net: phy: micrel: port clock select support Oleksij Rempel
2021-10-12 17:12   ` Trent Piepho
2021-10-13  7:28     ` Oleksij Rempel
2021-10-13  8:48       ` Trent Piepho [this message]
2021-10-13 10:23         ` Oleksij Rempel
2021-10-13 10:43           ` Trent Piepho
2021-10-13 11:02             ` Oleksij Rempel

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