From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Christoph Hellwig <hch@infradead.org>,
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
Michael Schmitz <schmitzmic@gmail.com>,
Jens Axboe <axboe@kernel.dk>,
linux-ide@vger.kernel.org,
linux-m68k <linux-m68k@lists.linux-m68k.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ata: add Buddha PATA controller driver
Date: Thu, 18 Oct 2018 16:03:19 +0200 [thread overview]
Message-ID: <CAMuHMdVe1KgQWYZ_BfBkSo3zr0c+TenLMEw3T=BLEQNoZ6ex7A@mail.gmail.com> (raw)
In-Reply-To: <20181018131210eucas1p14a11ec7555ca9ef3003387f1985326e6~ethZ7giWB0310803108eucas1p1X@eucas1p1.samsung.com>
Hi Bartlomiej, Christoph,
On Thu, Oct 18, 2018 at 3:12 PM Bartlomiej Zolnierkiewicz
<b.zolnierkie@samsung.com> wrote:
> On 10/18/2018 02:41 PM, Christoph Hellwig wrote:
> >> +static int __init pata_buddha_init_one(void)
> >> +{
> >> + struct zorro_dev *z = NULL;
> >> +
> >> + while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
> >
> > I'm not really an m68k expert, but shouldn't this implement a
> > struct zorro_driver instead? (or maybe two of them as xsurf
> > seems sufficiently different).
>
> I didn't want to introduce too many changes over old IDE's
> driver in the initial version of the libata driver as
> I can't test them myself. Once the new driver is verified
> to work I plan to convert it into proper Zorro_driver.
Unfortunately that conversion cannot happen right now, as zorro8390.c
already binds against the X-Surf zorro device.
I think the proper solution would be to start using MFD for multi-function
Zorro devices, cfr. the work I started years ago, but never completed
https://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git/log/?h=zorro-mfd
Then the Buddha MFD driver can instantiate 2 Buddha IDE cells, the
Catweasel MFD driver can instantiate 3 Buddha IDE cells and a Catweasel
floppy cell, and the X-Surf MFD driver can instantiate 2 Buddha IDE
cells and a zorro8390 cell.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2018-10-18 14:03 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20181018122951eucas1p2be43dc17df8d2c754e771785b3ad7457@eucas1p2.samsung.com>
2018-10-18 12:29 ` [PATCH] ata: add Buddha PATA controller driver Bartlomiej Zolnierkiewicz
2018-10-18 12:32 ` John Paul Adrian Glaubitz
2018-10-18 22:40 ` Michael Schmitz
2018-10-18 12:41 ` Christoph Hellwig
2018-10-18 13:12 ` Bartlomiej Zolnierkiewicz
2018-10-18 14:03 ` Geert Uytterhoeven [this message]
2018-10-18 23:49 ` Michael Schmitz
2018-10-25 19:38 ` John Paul Adrian Glaubitz
2018-10-31 10:06 ` John Paul Adrian Glaubitz
2018-11-01 4:53 ` Michael Schmitz
2018-11-01 7:30 ` John Paul Adrian Glaubitz
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