linux-kernel - [PATCH v2 0/4] mtd: spi-nor: Parse BFPT to determine the 4-Byte Address Mode

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Message-ID: <20220309144215.179449-1-tudor.ambarus@microchip.com>
Date:   Wed, 9 Mar 2022 16:42:11 +0200
From:   Tudor Ambarus <tudor.ambarus@...rochip.com>
To:     <p.yadav@...com>, <michael@...le.cc>
CC:     <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <nicolas.ferre@...rochip.com>,
        Tudor Ambarus <tudor.ambarus@...rochip.com>
Subject: [PATCH v2 0/4] mtd: spi-nor: Parse BFPT to determine the 4-Byte Address Mode

Get the 4-Byte Address mode method from BFPT and favor it in the detriment
of the "default" set_4byte_addr_mode method or the methods set by vendors.
This may introduce some regressions if flashes have wrong BFPT data. The
fix is to introduce post_bfpt() hooks and fix where needed. We should let
the core/sfdp do the params initialization, and do vendor specific updates
just where needed.

This patch set depends on:
https://lore.kernel.org/lkml/20220304093011.198173-1-tudor.ambarus@microchip.com/
which depends on:
https://lore.kernel.org/lkml/20220228111712.111737-1-tudor.ambarus@microchip.com/

You can find a branch containing the entire chain at:
git@...hub.com:ambarus/linux-0day.git spi-nor/next-bfpt-4byte-addr

v2: drop quad enable patch

Tudor Ambarus (4):
  mtd: spi-nor: Parse BFPT to determine the 4-Byte Address Mode methods
  mtd: spi-nor: Update name and description of the set_4byte_addr_mode
    BFPT methods
  mtd: spi-nor: Favor the BFPT-parsed set_4byte_addr_mode method
  mtd: spi-nor: sfdp: Keep SFDP definitions private

 drivers/mtd/spi-nor/core.c      |  70 +----------
 drivers/mtd/spi-nor/core.h      |   1 -
 drivers/mtd/spi-nor/macronix.c  |   9 +-
 drivers/mtd/spi-nor/micron-st.c |  32 +----
 drivers/mtd/spi-nor/sfdp.c      | 199 ++++++++++++++++++++++++++++++++
 drivers/mtd/spi-nor/sfdp.h      |  57 +--------
 drivers/mtd/spi-nor/winbond.c   |  18 +--
 7 files changed, 234 insertions(+), 152 deletions(-)

-- 
2.25.1