linux-kernel - [PATCH v4 00/10] add STM32 FMC2 EBI controller driver

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Date:   Wed, 6 May 2020 11:11:09 +0200
From:   Christophe Kerello <christophe.kerello@...com>
To:     <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <robh+dt@...nel.org>, <mark.rutland@....com>,
        <gregkh@...uxfoundation.org>, <boris.brezillon@...labora.com>
CC:     <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <devicetree@...r.kernel.org>, <marex@...x.de>,
        Christophe Kerello <christophe.kerello@...com>
Subject: [PATCH v4 00/10] add STM32 FMC2 EBI controller driver

The FMC2 functional block makes the interface with: synchronous and
asynchronous static devices (such as PSNOR, PSRAM or other memory-mapped
peripherals) and NAND flash memories.
Its main purposes are:
  - to translate AXI transactions into the appropriate external device
    protocol
  - to meet the access time requirements of the external devices
All external devices share the addresses, data and control signals with the
controller. Each external device is accessed by means of a unique Chip
Select. The FMC2 performs only one access at a time to an external device.

Changes in v4:
 - bindings:
   - fix filename: st,stm32-fmc2-ebi.yaml

Changes in v3:
 - NAND:
   - rename labels used on errors
   - add in the commit log the reason to increase FMC2_TIMEOUT_MS (patch 3)
   - add Miquel reviewed-by tag (patches 2/4/5/9)
 - EBI:
   - move in memory folder
   - merge MFD and BUS drivers to avoid a MFD driver
 - bindings:
   - pattern name has been modified
   - vendor properties have been modified
     - s/_/-/
     - add unit suffix (-ns) on timing properties

Christophe Kerello (10):
  mtd: rawnand: stm32_fmc2: manage all errors cases at probe time
  mtd: rawnand: stm32_fmc2: remove useless inline comments
  mtd: rawnand: stm32_fmc2: use FMC2_TIMEOUT_MS for timeouts
  mtd: rawnand: stm32_fmc2: cleanup
  mtd: rawnand: stm32_fmc2: use FIELD_PREP/FIELD_GET macros
  dt-bindings: mtd: update STM32 FMC2 NAND controller documentation
  dt-bindings: memory-controller: add STM32 FMC2 EBI controller
    documentation
  memory: stm32-fmc2-ebi: add STM32 FMC2 EBI controller driver
  mtd: rawnand: stm32_fmc2: use regmap APIs
  mtd: rawnand: stm32_fmc2: get resources from parent node

 .../memory-controllers/st,stm32-fmc2-ebi.yaml      |  261 +++++
 .../bindings/mtd/st,stm32-fmc2-nand.yaml           |   19 +-
 drivers/memory/Kconfig                             |   10 +
 drivers/memory/Makefile                            |    1 +
 drivers/memory/stm32-fmc2-ebi.c                    | 1206 ++++++++++++++++++++
 drivers/mtd/nand/raw/Kconfig                       |    1 +
 drivers/mtd/nand/raw/stm32_fmc2_nand.c             | 1176 ++++++++++---------
 7 files changed, 2061 insertions(+), 613 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml
 create mode 100644 drivers/memory/stm32-fmc2-ebi.c

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