linux-kernel - Re: [PATCH v3 00/10] add STM32 FMC2 EBI controller driver

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Date:   Wed, 6 May 2020 11:16:59 +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>
Subject: Re: [PATCH v3 00/10] add STM32 FMC2 EBI controller driver

Hi,

Please do not spend time to review v3.
V4 has been pushed to fix an issue in YAML bindings.

Regards,
Christophe Kerello.

On 5/5/20 7:10 PM, Christophe Kerello wrote:
> 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 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
>