linux-kernel - [PATCH v4 00/32] mtd: spi-nor: move vendor specific code into vendor modules

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Message-Id: <20220221120809.1531502-1-michael@walle.cc>
Date:   Mon, 21 Feb 2022 13:07:37 +0100
From:   Michael Walle <michael@...le.cc>
To:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Pratyush Yadav <p.yadav@...com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        yaliang.wang@...driver.com, Michael Walle <michael@...le.cc>
Subject: [PATCH v4 00/32] mtd: spi-nor: move vendor specific code into vendor modules

It turns out that most of the special status register handling is
specific for a particular vendor. I.e. Xilinx has some different
opcodes for the status register read, Micron has an additional FSR
register and Spansion has these flags integrated into the SR.

Create a callback to ready() where a flash chip can register its
own function. This will let us move all the vendor specific stuff
out of the core into the vendor modules.

As a preparation step, unify all function and object names in the
vendor modules. For the sake of consistency and better readability
of the code flow, I also converted the setup() callback to be
optional.

Please note that this is only compile-time tested.

Changes since v3:
 - fix spansion.c compilation, messed up the patch export. Sorry
   for the noise

Changes since v2:
 - use family_nor_ instead of just family_ prefix
 - fix function doc

Changes since v1:
 - rename/unify function names inside the vendor modules.
 - make local functions static
 - fix function doc typo
 - use late_init hook to set fsr_ready op
 - Use uppercase and period in comments
 - Add comments for the vendor flags
 - move coding style change in spi_nor_sr_ready() into own patch
 - new patch to add missing parenthesis in S3AN_INFO()
 - add missing function prefix rename patch for the spansion module

Michael Walle (32):
  mtd: spi-nor: atmel: unify function names
  mtd: spi-nor: catalyst: unify function names
  mtd: spi-nor: eon: unify function names
  mtd: spi-nor: esmt: unify function names
  mtd: spi-nor: everspin: unify function names
  mtd: spi-nor: fujitsu: unify function names
  mtd: spi-nor: gigadevice: unify function names
  mtd: spi-nor: intel: unify function names
  mtd: spi-nor: issi: unify function names
  mtd: spi-nor: macronix: unify function names
  mtd: spi-nor: micron-st: unify function names
  mtd: spi-nor: spansion: unify function names
  mtd: spi-nor: sst: unify function names
  mtd: spi-nor: winbond: unify function names
  mtd: spi-nor: xilinx: unify function names
  mtd: spi-nor: xmc: unify function names
  mtd: spi-nor: slightly refactor the spi_nor_setup()
  mtd: spi-nor: allow a flash to define its own ready() function
  mtd: spi-nor: export more function to be used in vendor modules
  mtd: spi-nor: guard _page_size parameter in S3AN_INFO()
  mtd: spi-nor: move all xilinx specifics into xilinx.c
  mtd: spi-nor: xilinx: rename vendor specific functions and defines
  mtd: spi-nor: xilinx: correct the debug message
  mtd: spi-nor: move all micron-st specifics into micron-st.c
  mtd: spi-nor: micron-st: convert USE_FSR to a manufacturer flag
  mtd: spi-nor: micron-st: rename vendor specific functions and defines
  mtd: spi-nor: spansion: slightly rework control flow in late_init()
  mtd: spi-nor: move all spansion specifics into spansion.c
  mtd: spi-nor: spansion: convert USE_CLSR to a manufacturer flag
  mtd: spi-nor: spansion: rename vendor specific functions and defines
  mtd: spi-nor: slightly change code style in spi_nor_sr_ready()
  mtd: spi-nor: renumber flags

 drivers/mtd/spi-nor/atmel.c      |  81 +++++-----
 drivers/mtd/spi-nor/catalyst.c   |   6 +-
 drivers/mtd/spi-nor/core.c       | 265 ++-----------------------------
 drivers/mtd/spi-nor/core.h       |  70 ++++----
 drivers/mtd/spi-nor/eon.c        |   6 +-
 drivers/mtd/spi-nor/esmt.c       |   6 +-
 drivers/mtd/spi-nor/everspin.c   |   6 +-
 drivers/mtd/spi-nor/fujitsu.c    |   6 +-
 drivers/mtd/spi-nor/gigadevice.c |   6 +-
 drivers/mtd/spi-nor/intel.c      |   6 +-
 drivers/mtd/spi-nor/issi.c       |  10 +-
 drivers/mtd/spi-nor/macronix.c   |  14 +-
 drivers/mtd/spi-nor/micron-st.c  | 258 ++++++++++++++++++++++++------
 drivers/mtd/spi-nor/spansion.c   | 168 +++++++++++++++-----
 drivers/mtd/spi-nor/sst.c        |  44 ++---
 drivers/mtd/spi-nor/winbond.c    |  29 ++--
 drivers/mtd/spi-nor/xilinx.c     |  97 +++++++++--
 drivers/mtd/spi-nor/xmc.c        |   6 +-
 include/linux/mtd/spi-nor.h      |  18 ---
 19 files changed, 578 insertions(+), 524 deletions(-)

-- 
2.30.2