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 14:51:07 +0000
From:   Schrempf Frieder <frieder.schrempf@...tron.de>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
CC:     Mark Rutland <mark.rutland@....com>,
        "yogeshnarayan.gaur@....com" <yogeshnarayan.gaur@....com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>,
        "david.wolfe@....com" <david.wolfe@....com>,
        Li Yang <leoyang.li@....com>,
        "richard@....at" <richard@....at>,
        "marek.vasut@...il.com" <marek.vasut@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        "boris.brezillon@...tlin.com" <boris.brezillon@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        "han.xu@....com" <han.xu@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "dwmw2@...radead.org" <dwmw2@...radead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "prabhakar.kushwaha@....com" <prabhakar.kushwaha@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        "computersforpeace@...il.com" <computersforpeace@...il.com>,
        Shawn Guo <shawnguo@...nel.org>
Subject: Re: [PATCH v6 1/9] ARM: dts: Reflect change of FSL QSPI driver and
 remove unused properties

Hi Uwe,

I accidentally replied to the MTD list only, missing the other 
recipients, earlier today. So here comes the reply again.

On 27.11.18 12:01, Uwe Kleine-König wrote:
> 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?

Bindings are changed here: https://patchwork.ozlabs.org/patch/1003761/

Thanks,
Frieder