linux-kernel - [PATCH v2 0/6] mtd: spi-nor: move manuf out of the core

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Message-ID: <20190824120650.14752-1-tudor.ambarus@microchip.com>
Date:   Sat, 24 Aug 2019 12:07:07 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <boris.brezillon@...labora.com>, <marek.vasut@...il.com>,
        <vigneshr@...com>, <miquel.raynal@...tlin.com>, <richard@....at>,
        <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
CC:     <Tudor.Ambarus@...rochip.com>
Subject: [PATCH v2 0/6] mtd: spi-nor: move manuf out of the core - batch 2

From: Tudor Ambarus <tudor.ambarus@...rochip.com>

Depends on 'mtd: spi-nor: move manuf out of the core - batch 1' series:
https://patchwork.ozlabs.org/project/linux-mtd/list/?series=127121
which depends on:

Depends on 'mtd: spi-nor: move manuf out of the core - batch 0' series:
https://patchwork.ozlabs.org/project/linux-mtd/list/?series=127030

v2:
- addressed all the comments
- all flash parameters and settings are now set in 'struct
  spi_nor_flash_parameter', for a clearer separation between the SPI NOR
  layer and the flash params.

Add post_sfdp() hook to tweak flash config. This series opens doors for 5/
from below.

In the quest of moving the manufacturer code out of the spi-nor core,
we want to impose the following sequence of calls:

    1/ spi-nor core legacy flash parameters init:
            spi_nor_default_init_params()

    2/ MFR-based manufacturer flash parameters init:
            nor->manufacturer->fixups->default_init()

    3/ specific flash_info tweeks done when decisions can not be done just on
       MFR:
            nor->info->fixups->default_init()

    4/ SFDP tables flash parameters init - SFDP knows better:
            spi_nor_sfdp_init_params()

    5/ post SFDP tables flash parameters updates - in case manufacturers get
       the serial flash tables wrong or incomplete.
            nor->info->fixups->post_sfdp()
       The later can be extended to nor->manufacturer->fixups->post_sfdp() if
       needed.

Tested on sst26vf064b with atmel-quadspi SPIMEM driver.

Boris Brezillon (4):
  mtd: spi-nor: Add post_sfdp() hook to tweak flash config
  mtd: spi-nor: Add spansion_post_sfdp_fixups()
  mtd: spi-nor: Add a ->convert_addr() method
  mtd: spi-nor: Add the SPI_NOR_XSR_RDY flag

Tudor Ambarus (2):
  mtd: spi_nor: Add a ->setup() method
  mtd: spi-nor: Add s3an_post_sfdp_fixups()

 drivers/mtd/spi-nor/spi-nor.c | 549 +++++++++++++++++++++++-------------------
 include/linux/mtd/spi-nor.h   |  22 +-
 2 files changed, 322 insertions(+), 249 deletions(-)

-- 
2.9.5