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From: Boris Brezillon <boris.brezillon@collabora.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
	linux-mtd@lists.infradead.org, Lubomir Rintel <lkundrak@v3.sk>
Cc: Richard Weinberger <richard@nod.at>,
	Boris Brezillon <boris.brezillon@collabora.com>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Tudor Ambarus <tudor.ambarus@microchip.com>
Subject: [PATCH v2 00/19] mtd: rawnand: cafe: Convert to exec_op() (and more)
Date: Tue,  5 May 2020 12:13:34 +0200	[thread overview]
Message-ID: <20200505101353.1776394-1-boris.brezillon@collabora.com> (raw)

Hello,

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 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.

No major changes in this v2, apart from fixes for things reported by
Lubomir and Miquel. See the changelog on each patch for more details.

Regards,

Boris

Boris Brezillon (19):
  mtd: rawnand: Propage CS selection to sub operations
  mtd: rawnand: cafe: Get rid of an inaccurate kernel doc header
  mtd: rawnand: cafe: Rename cafe_nand_write_page_lowlevel()
  mtd: rawnand: cafe: Use a correct ECC mode and pass the ECC alg
  mtd: rawnand: cafe: Include linux/io.h instead of asm/io.h
  mtd: rawnand: cafe: Demistify register fields
  mtd: rawnand: cafe: Factor out the controller initialization logic
  mtd: rawnand: cafe: Get rid of the debug module param
  mtd: rawnand: cafe: Use devm_kzalloc and devm_request_irq()
  mtd: rawnand: cafe: Get rid of a useless label
  mtd: rawnand: cafe: Explicitly inherit from nand_controller
  mtd: rawnand: cafe: Don't leave ECC enabled in the write path
  mtd: rawnand: cafe: Don't split things when reading/writing a page
  mtd: rawnand: cafe: Add exec_op() support
  mtd: rawnand: cafe: Get rid of the legacy interface implementation
  mtd: rawnand: cafe: Adjust the cafe_{read,write}_buf() prototypes
  mtd: rawnand: cafe: s/uint{8,16,32}_t/u{8,16,32}/
  mtd: rawnand: cafe: Drop the cafe_{readl,writel}() wrappers
  mtd: rawnand: cafe: Get rid of the last printk()

 drivers/mtd/nand/raw/cafe_nand.c | 798 ++++++++++++++++---------------
 drivers/mtd/nand/raw/nand_base.c |   3 +-
 include/linux/mtd/rawnand.h      |   2 +
 3 files changed, 410 insertions(+), 393 deletions(-)

-- 
2.25.3


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             reply	other threads:[~2020-05-05 10:14 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-05 10:13 Boris Brezillon [this message]
2020-05-05 10:13 ` [PATCH v2 01/19] mtd: rawnand: Propage CS selection to sub operations Boris Brezillon
2020-05-24 19:17   ` Miquel Raynal
2020-05-05 10:13 ` [PATCH v2 02/19] mtd: rawnand: cafe: Get rid of an inaccurate kernel doc header Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 03/19] mtd: rawnand: cafe: Rename cafe_nand_write_page_lowlevel() Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 04/19] mtd: rawnand: cafe: Use a correct ECC mode and pass the ECC alg Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 05/19] mtd: rawnand: cafe: Include linux/io.h instead of asm/io.h Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 06/19] mtd: rawnand: cafe: Demistify register fields Boris Brezillon
     [not found]   ` <20200506204638.GB207924@furthur.local>
2020-05-06 20:53     ` Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 07/19] mtd: rawnand: cafe: Factor out the controller initialization logic Boris Brezillon
2020-05-10 21:49   ` Miquel Raynal
2020-05-05 10:13 ` [PATCH v2 08/19] mtd: rawnand: cafe: Get rid of the debug module param Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 09/19] mtd: rawnand: cafe: Use devm_kzalloc and devm_request_irq() Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 10/19] mtd: rawnand: cafe: Get rid of a useless label Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 11/19] mtd: rawnand: cafe: Explicitly inherit from nand_controller Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 12/19] mtd: rawnand: cafe: Don't leave ECC enabled in the write path Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 13/19] mtd: rawnand: cafe: Don't split things when reading/writing a page Boris Brezillon
2020-05-10 21:49   ` Miquel Raynal
2020-05-05 10:13 ` [PATCH v2 14/19] mtd: rawnand: cafe: Add exec_op() support Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 15/19] mtd: rawnand: cafe: Get rid of the legacy interface implementation Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 16/19] mtd: rawnand: cafe: Adjust the cafe_{read, write}_buf() prototypes Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 17/19] mtd: rawnand: cafe: s/uint{8,16,32}_t/u{8,16,32}/ Boris Brezillon
2020-05-05 10:13 ` [PATCH v2 18/19] mtd: rawnand: cafe: Drop the cafe_{readl, writel}() wrappers Boris Brezillon
2020-05-10 21:45   ` [PATCH v2 18/19] mtd: rawnand: cafe: Drop the cafe_{readl,writel}() wrappers Miquel Raynal
2020-05-05 10:13 ` [PATCH v2 19/19] mtd: rawnand: cafe: Get rid of the last printk() Boris Brezillon
2020-05-10 21:43   ` Miquel Raynal
     [not found] ` <20200505144639.GB1997@furthur.local>
     [not found]   ` <20200505220152.GA157445@furthur.local>
2020-05-06  6:32     ` [PATCH v2 00/19] mtd: rawnand: cafe: Convert to exec_op() (and more) Boris Brezillon
     [not found]       ` <20200506155359.GA183666@furthur.local>
2020-05-06 16:11         ` Boris Brezillon
     [not found]           ` <20200506203635.GA207924@furthur.local>
2020-05-06 20:58             ` Boris Brezillon
2020-05-06 21:35             ` Boris Brezillon
     [not found]               ` <20200507134708.GA303404@furthur.local>
2020-05-07 14:11                 ` Boris Brezillon
2020-05-07 20:12                 ` Boris Brezillon
     [not found]                   ` <20200509193440.GA524772@furthur.local>
2020-05-09 20:01                     ` Boris Brezillon
     [not found]                       ` <20200509202855.GB524772@furthur.local>
2020-05-10  6:31                         ` Boris Brezillon
2020-05-10  6:45                           ` Boris Brezillon
     [not found]                             ` <20200510072108.GA587379@furthur.local>
2020-05-10  7:35                               ` Boris Brezillon
2020-05-11  8:23                                 ` Boris Brezillon
     [not found]                                   ` <20200512164057.GC604838@furthur.local>
2020-05-12 19:50                                     ` Boris Brezillon
2020-05-13 17:10                                     ` Boris Brezillon
     [not found]                                       ` <20200515144703.GA1245784@furthur.local>
     [not found]                                         ` <20200515192540.GB1245784@furthur.local>
     [not found]                                           ` <20200516145650.GA1433661@furthur.local>
2020-05-16 19:08                                             ` Boris Brezillon
2020-05-16 20:18                                               ` Boris Brezillon
     [not found]                                                 ` <20200517164709.GA1651421@furthur.local>
2020-05-18 14:50                                                   ` Boris Brezillon
     [not found]                                                     ` <20200520072331.GJ1695525@furthur.local>
2020-05-20  7:55                                                       ` Boris Brezillon
     [not found]                                                         ` <20200524115246.GC2781@furthur.local>
2020-05-24 14:55                                                           ` Boris Brezillon
2020-05-24 15:05                                                             ` Boris Brezillon
2020-05-24 15:29                                                           ` Boris Brezillon

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