From: Boris Brezillon <boris.brezillon@collabora.com>
To: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
Tudor Ambarus <tudor.ambarus@microchip.com>,
Richard Weinberger <richard@nod.at>,
Lubomir Rintel <lkundrak@v3.sk>,
linux-mtd@lists.infradead.org,
Miquel Raynal <miquel.raynal@bootlin.com>,
David Woodhouse <dwmw2@infradead.org>
Subject: Re: [PATCH 00/17] mtd: rawnand: cafe: Convert to exec_op() (and more)
Date: Wed, 29 Apr 2020 10:28:41 +0200 [thread overview]
Message-ID: <20200429102841.57acab4e@collabora.com> (raw)
In-Reply-To: <20200429083735.55a80097@windsurf.home>
Hi Thomas,
On Wed, 29 Apr 2020 08:37:35 +0200
Thomas Petazzoni <thomas.petazzoni@bootlin.com> wrote:
> Hello,
>
> +Lubomir Rintel in Cc.
>
> On Mon, 27 Apr 2020 10:20:10 +0200
> Boris Brezillon <boris.brezillon@collabora.com> wrote:
>
> > A bit of context to explain the motivation behind those conversions
> > I've been sending for the last couple of weeks. The raw NAND subsystem
> > carries a lot of history which makes any rework not only painful, but
> > also subject to regressions which we only detect when someone dares to
> > update its kernel on one of those ancient HW. While carrying drivers
> > for old HW is not a problem per se, carrying ancient and unmaintained
> > drivers that are not converted to new APIs is a maintenance burden,
> > hence this massive conversion attempt I'm conducting here.
> >
> > So here it is, a series converting the CAFE NAND controller driver to
> > exec_op(), plus a bunch of minor improvements done along the way.
> > I hope I'll find someone to test those changes, but if there's no one
> > still owning OLPC HW or no interest in keeping it supported in recent
> > kernel versions, we should definitely consider removing the driver
> > instead.
>
> Lubomir Rintel (in Cc) has very recently added defconfigs to Buildroot
> to support the two OLPC platforms (the Intel based one and the Marvell
> MMP based one). I suppose this means he has access to the hardware, so
> hopefully he should be able to test these NAND driver changes.
Oh, that's great news! Thanks a lot for letting me know.
Lubomir, let me know if you'd be okay to test those changes. I can
provide a branch if that's easier.
Regards,
Boris
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next prev parent reply other threads:[~2020-04-29 8:29 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-27 8:20 [PATCH 00/17] mtd: rawnand: cafe: Convert to exec_op() (and more) Boris Brezillon
2020-04-27 8:20 ` [PATCH 01/17] mtd: rawnand: cafe: Get rid of an inaccurate kernel doc header Boris Brezillon
2020-04-27 19:33 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 02/17] mtd: rawnand: cafe: Rename cafe_nand_write_page_lowlevel() Boris Brezillon
2020-04-27 19:33 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 03/17] mtd: rawnand: cafe: Use a correct ECC mode and pass the ECC alg Boris Brezillon
2020-04-27 19:34 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 04/17] mtd: rawnand: cafe: Include linux/io.h instead of asm/io.h Boris Brezillon
2020-04-27 19:35 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 05/17] mtd: rawnand: cafe: Demistify register fields Boris Brezillon
2020-04-27 19:42 ` Miquel Raynal
2020-04-28 6:06 ` Boris Brezillon
2020-04-27 8:20 ` [PATCH 06/17] mtd: rawnand: cafe: Factor out the controller initialization logic Boris Brezillon
2020-04-27 19:45 ` Miquel Raynal
2020-04-28 6:06 ` Boris Brezillon
2020-04-27 8:20 ` [PATCH 07/17] mtd: rawnand: cafe: Get rid of the debug module param Boris Brezillon
2020-04-27 19:46 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 08/17] mtd: rawnand: cafe: Use devm_kzalloc and devm_request_irq() Boris Brezillon
2020-04-27 19:47 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 09/17] mtd: rawnand: cafe: Get rid of a useless label Boris Brezillon
2020-04-27 19:47 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 10/17] mtd: rawnand: cafe: Explicitly inherit from nand_controller Boris Brezillon
2020-04-27 19:49 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 11/17] mtd: rawnand: cafe: Don't leave ECC enabled in the write path Boris Brezillon
2020-04-27 19:51 ` Miquel Raynal
2020-04-28 6:08 ` Boris Brezillon
2020-04-27 8:20 ` [PATCH 12/17] mtd: rawnand: cafe: Don't split things when reading/writing a page Boris Brezillon
2020-04-27 19:53 ` Miquel Raynal
2020-04-28 6:20 ` Boris Brezillon
2020-04-28 7:44 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 13/17] mtd: rawnand: cafe: Add exec_op() support Boris Brezillon
2020-04-27 19:59 ` Miquel Raynal
2020-04-28 6:24 ` Boris Brezillon
[not found] ` <20200502111410.330584-1-lkundrak@v3.sk>
2020-05-02 13:18 ` Boris Brezillon
[not found] ` <20200502191843.GA363829@furthur.local>
2020-05-02 22:34 ` Boris Brezillon
[not found] ` <20200503060610.GA386731@furthur.local>
2020-05-03 7:04 ` Boris Brezillon
2020-05-03 7:26 ` Boris Brezillon
[not found] ` <20200503175537.GA404453@furthur.local>
2020-05-03 19:49 ` Boris Brezillon
[not found] ` <20200503075208.GA387473@furthur.local>
2020-05-03 8:13 ` Boris Brezillon
2020-05-03 8:35 ` Boris Brezillon
2020-05-09 20:10 ` Boris Brezillon
2020-04-27 8:20 ` [PATCH 14/17] mtd: rawnand: cafe: Get rid of the legacy interface implementation Boris Brezillon
2020-04-27 20:00 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 15/17] mtd: rawnand: cafe: Adjust the cafe_{read, write}_buf() prototypes Boris Brezillon
2020-04-27 20:00 ` [PATCH 15/17] mtd: rawnand: cafe: Adjust the cafe_{read,write}_buf() prototypes Miquel Raynal
2020-04-28 6:24 ` Boris Brezillon
2020-04-27 8:20 ` [PATCH 16/17] mtd: rawnand: cafe: Handle non-32bit aligned reads/writes Boris Brezillon
2020-04-27 20:04 ` Miquel Raynal
2020-04-28 6:26 ` Boris Brezillon
2020-04-27 8:20 ` [PATCH 17/17] mtd: rawnand: cafe: s/uint{8,16,32}_t/u{8,16,32}/ Boris Brezillon
2020-04-27 20:05 ` Miquel Raynal
2020-04-27 8:20 ` [PATCH 17/17] mtd: rawnand: s/uint{8,16,32}_t/u{8,16,32}/ Boris Brezillon
2020-04-27 8:25 ` Boris Brezillon
2020-04-29 6:37 ` [PATCH 00/17] mtd: rawnand: cafe: Convert to exec_op() (and more) Thomas Petazzoni
2020-04-29 8:28 ` Boris Brezillon [this message]
[not found] ` <20200501055209.GA44510@furthur.local>
2020-05-01 6:21 ` Boris Brezillon
[not found] ` <20200502112732.330971-1-lkundrak@v3.sk>
2020-05-02 13:15 ` Boris Brezillon
2020-05-08 10:32 ` Miquel Raynal
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