linux-kernel - Re: [PATCH v1 2/2] spi: cadence-qspi: Add QSPI support for Intel LGM SoC

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Message-ID: <20190916113255.GA4352@sirena.co.uk>
Date:   Mon, 16 Sep 2019 12:32:55 +0100
From:   Mark Brown <broonie@...nel.org>
To:     "Ramuthevar,Vadivel MuruganX" 
        <vadivel.muruganx.ramuthevar@...ux.intel.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, cheol.yong.kim@...el.com,
        qi-ming.wu@...el.com
Subject: Re: [PATCH v1 2/2] spi: cadence-qspi: Add QSPI support for Intel LGM
 SoC

On Mon, Sep 16, 2019 at 03:38:43PM +0800, Ramuthevar,Vadivel MuruganX wrote:

> Existing cadence drivers do not support SPI-NAND, it only supports to
> SPI-NOR and SPI devices. To state that is the driver for the same IP
> but due to different SPI flash memory(NAND) need to write from scratch.

What makes you say you need to write a separate driver?  It's perfectly
possible to support the normal and flash I/O mechanisms in a single
driver and as well as the maintainence issues obviously someone could
build a system with both flash and non-flash devices on the same SPI
controller.

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