linux-kernel - [PATCH v2 0/6] mtd: spi-nor: spring cleaning

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Date: Fri, 19 Apr 2024 16:12:43 +0200
From: Michael Walle <mwalle@...nel.org>
To: Tudor Ambarus <tudor.ambarus@...aro.org>,
	Pratyush Yadav <pratyush@...nel.org>,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>
Cc: Ricardo Ribalda <ribalda@...nel.org>,
	linux-kernel@...r.kernel.org,
	linux-mtd@...ts.infradead.org,
	Michael Walle <mwalle@...nel.org>
Subject: [PATCH v2 0/6] mtd: spi-nor: spring cleaning

It's time for some spring cleaning. Remove the oddball xilinx
flashes with non-power-of-2 page sizes.
Remove the .setup() callback, only the default callback is ever
used and it is unlikely there is need for a custom setup.

Finally, the last patch is a proposal how to deprecate flashes,
which are just detected by their id. We cannot really find out if
there are boards out there which are using a particular flash. Thus,
as a first step, we can print a warning during kernel startup. As a
second step we might introduce a kernel config option to actually
disable the flashes which has the deprecated flag.

v2:
 - remove convert_addr, I've left page_size in the info, that might
   still come in handy for future flashes as they are getting
   bigger, although let's hope they have SFDP support..
 - simplify the fast read flag handling
 - reword the commit message of the .setup() callback removal patch
 - introduce .deprecation_version and simplify the checking

Michael Walle (6):
  mtd: spi-nor: Remove support for Xilinx S3AN flashes
  mtd: spi-nor: get rid of non-power-of-2 page size handling
  mtd: spi-nor: remove .setup() callback
  mtd: spi-nor: get rid of SPI_NOR_NO_FR
  mtd: spi-nor: simplify spi_nor_get_flash_info()
  mtd: spi-nor: introduce support for displaying deprecation message

 drivers/mtd/spi-nor/Makefile   |   1 -
 drivers/mtd/spi-nor/core.c     | 208 ++++++++++++++-------------------
 drivers/mtd/spi-nor/core.h     |  15 +--
 drivers/mtd/spi-nor/everspin.c |  19 ++-
 drivers/mtd/spi-nor/xilinx.c   | 169 ---------------------------
 5 files changed, 105 insertions(+), 307 deletions(-)
 delete mode 100644 drivers/mtd/spi-nor/xilinx.c

-- 
2.39.2