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Message-ID: <20221218174523.cke7ubh6nycd247c@mobilestation>
Date:   Sun, 18 Dec 2022 20:45:23 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     Sudip Mukherjee <sudip.mukherjee@...ive.com>
Cc:     Mark Brown <broonie@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        jude.onyenegecha@...ive.com, ben.dooks@...ive.com,
        jeegar.lakhani@...ive.com, linux-spi@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/15] Add support for enhanced SPI for Designware SPI
 controllers

Hi Sudip

On Mon, Dec 12, 2022 at 06:07:17PM +0000, Sudip Mukherjee wrote:
> The is v2 of the patch series adding enhanced SPI support. Some Synopsys SSI
> controllers support enhanced SPI which includes Dual mode, Quad mode and
> Octal mode. DWC_ssi includes clock stretching feature in enhanced SPI modes
> which can be used to prevent FIFO underflow and overflow conditions while
> transmitting or receiving the data respectively.
> 
> This is almost a complete rework based on the review from Serge.

Thank you very much for the series. I'll have a look at it on the next
week.

-Serge(y)

> 
> 
> -- 
> Regards
> Sudip
> 
> Sudip Mukherjee (15):
>   spi: dw: Introduce spi_frf and STD_SPI
>   spi: dw: update NDF while using enhanced spi mode
>   spi: dw: update SPI_CTRLR0 register
>   spi: dw: add check for support of enhanced spi
>   spi: dw: Introduce enhanced mem_op
>   spi: dw: Introduce dual/quad/octal spi
>   spi: dw: send cmd and addr to start the spi transfer
>   spi: dw: update irq setup to use multiple handler
>   spi: dw: use irq handler for enhanced spi
>   spi: dw: Calculate Receive FIFO Threshold Level
>   spi: dw: adjust size of mem_op
>   spi: dw: Add retry for enhanced spi mode
>   spi: dw: detect enhanced spi mode
>   spi: dt-bindings: snps,dw-ahb-ssi: Add generic dw-ahb-ssi version
>   spi: dw: initialize dwc-ssi controller
> 
>  .../bindings/spi/snps,dw-apb-ssi.yaml         |   1 +
>  drivers/spi/spi-dw-core.c                     | 347 +++++++++++++++++-
>  drivers/spi/spi-dw-mmio.c                     |   1 +
>  drivers/spi/spi-dw.h                          |  27 ++
>  4 files changed, 364 insertions(+), 12 deletions(-)
> 
> -- 
> 2.30.2
> 

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