linux-kernel - Re: [PATCH 7/8] spi: lpspi: Add cs-gpio support

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Message-ID: <20190109123307.GB10405@sirena.org.uk>
Date:   Wed, 9 Jan 2019 12:33:07 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Clark Wang <xiaoning.wang@....com>
Cc:     "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 7/8] spi: lpspi: Add cs-gpio support

On Mon, Jan 07, 2019 at 07:47:47AM +0000, Clark Wang wrote:
> Add cs-gpio feature for LPSPI.
> The cs line will be controlled in fsl_lpspi_transfe_one_msg() function.
> 
> Still support using the mode without cs-gpio. It depends on if attribute
> cs-gpio has been configured in dts file.

This is open coding the GPIO - it'd be better to convert to use
transfer_one() so you can use the core GPIO handling but that's not
really directly relevant to this patch so I'm going to apply, just
something it'd be good to work on.

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