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

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Message-ID: <20190731091145.27374-1-tudor.ambarus@microchip.com>
Date:   Wed, 31 Jul 2019 09:12:06 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <boris.brezillon@...labora.com>, <marek.vasut@...il.com>,
        <vigneshr@...com>
CC:     <dwmw2@...radead.org>, <computersforpeace@...il.com>,
        <miquel.raynal@...tlin.com>, <richard@....at>,
        <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <Tudor.Ambarus@...rochip.com>
Subject: [PATCH 0/6] mtd: spi-nor: move manuf out of the core - batch 2

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

Add post_sfdp() hook to tweak flash config.

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.

This series opens doors for 5/.

Tested on sst26vf064b with atmel-quadspi SPIMEM driver.

Depends on:
https://patchwork.ozlabs.org/project/linux-mtd/list/?series=122420

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 nor->setup() method
  mtd: spi-nor: Add s3an_post_sfdp_fixups()

 drivers/mtd/spi-nor/spi-nor.c | 192 +++++++++++++++++-----------------
 include/linux/mtd/spi-nor.h   | 232 +++++++++++++++++++++++++++---------------
 2 files changed, 245 insertions(+), 179 deletions(-)

-- 
2.9.5