linux-kernel - Re: [PATCH v6 1/9] ARM: dts: Reflect change of FSL QSPI driver and remove unused properties

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Date:   Tue, 27 Nov 2018 12:01:34 +0100
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Schrempf Frieder <frieder.schrempf@...tron.de>
Cc:     "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "boris.brezillon@...tlin.com" <boris.brezillon@...tlin.com>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        NXP Linux Team <linux-imx@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Li Yang <leoyang.li@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "yogeshnarayan.gaur@....com" <yogeshnarayan.gaur@....com>,
        "richard@....at" <richard@....at>,
        "prabhakar.kushwaha@....com" <prabhakar.kushwaha@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "marek.vasut@...il.com" <marek.vasut@...il.com>,
        "han.xu@....com" <han.xu@....com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>,
        "david.wolfe@....com" <david.wolfe@....com>,
        "computersforpeace@...il.com" <computersforpeace@...il.com>,
        "dwmw2@...radead.org" <dwmw2@...radead.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v6 1/9] ARM: dts: Reflect change of FSL QSPI driver and
 remove unused properties

Hello,

On Tue, Nov 27, 2018 at 10:24:19AM +0000, Schrempf Frieder wrote:
> The FSL QSPI driver will be moved to the SPI framework and it then
> acts as a SPI controller. Therefore the subnodes need to set
> spi-[rx/tx]-bus-width = <4>, so quad mode is used just as before.
> 
> Also the properties 'bus-num', 'fsl,spi-num-chipselects' and
> 'fsl,spi-flash-chipselects' were never read by the driver and
> can be removed.
> 
> The 'reg' properties are adjusted to reflect what bus and
> chipselect the flash is connected to, as the new driver needs
> this information.
> 
> The property 'fsl,qspi-has-second-chip' is not needed anymore
> and will be removed after the old driver was disabled to avoid
> breaking ls1021a-moxa-uc-8410a.dts.
> 
> Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>

do we need to change the binding document accordingly?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |