linux-kernel - Re: 回信: [RFC PATCH 09/10] spi: mxic: Add support for direct mapping

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Date:   Wed, 13 Oct 2021 15:23:47 +0800
From:   zhengxunli@...c.com.tw
To:     "Miquel Raynal" <miquel.raynal@...tlin.com>
Cc:     Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tudor Ambarus <Tudor.Ambarus@...rochip.com>,
        <linux-mtd@...ts.infradead.org>,
        "Rob Herring" <robh+dt@...nel.org>,
        "Mark Brown" <broonie@...nel.org>,
        "Xiangsheng Hou" <Xiangsheng.Hou@...iatek.com>,
        "Boris Brezillon" <bbrezillon@...nel.org>,
        devicetree@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, jaimeliao@...c.com.tw,
        juliensu@...c.com.tw,
        "Thomas Petazzoni" <thomas.petazzoni@...tlin.com>,
        "Miquel Raynal" <miquel.raynal@...tlin.com>
Subject: Re: 回信: [RFC PATCH 09/10] spi: mxic: Add support for direct mapping

> Implement the ->dirmap_create() and ->dirmap_read/write() hooks to
> provide a fast path for read and write accesses.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
> ---
>  drivers/spi/spi-mxic.c | 171 ++++++++++++++++++++++++++++++++++-------
>  1 file changed, 144 insertions(+), 27 deletions(-)

Hi Miquel,

I verified it by reading, writing, and erasing through normal and quad 
modes
on the Xilinx Zynq PicoZed FPGA board. Except for the need to update the 
SPI
MXIC driver version, it looks good.

Tested-by: Zhengxun Li <zhengxunli@...c.com.tw>
Reviewed-by: Zhengxun Li <zhengxunli@...c.com.tw>

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