linux-kernel - Re: [PATCH v2] arm: dts: imx7: add QSPI

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Date:   Wed, 29 Jul 2020 09:58:41 +0200
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     Matthias Schiffer <matthias.schiffer@...tq-group.com>
Cc:     Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: Re: [PATCH v2] arm: dts: imx7: add QSPI

Hi Matthias,

On 20-07-29 09:14, Matthias Schiffer wrote:
> On Wed, 2020-07-29 at 09:11 +0200, Matthias Schiffer wrote:
> > In preparation for an update of the TQ-Systems TQMa7x/MBa7x DTS, add
> > the
> > QSPI controller to imx7s.dtsi.
> > 
> > Based-on-patch-by: Han Xu <han.xu@....com>
> > Signed-off-by: Matthias Schiffer <matthias.schiffer@...tq-group.com>
> > ---
> > 
> > v2:
> > - renamed node and label
> > - reordered properties
> > (as suggested by Marco Felsch)
> 
> Ugh, I neglected to check for compile warnings after adjusting the node
> name. This now gives the following warning:
> 
> arch/arm/boot/dts/imx7s.dtsi:1165.24-1176.6: Warning (spi_bus_bridge): 
> /soc/bus@...00000/qspi@...b0000: node name for SPI buses should be
> 'spi'
> 
> So I guess this should be called spi@ after all?

Unfortunately yes, this would cause a longer discussion but it still
seems wrong to me.

Regards,
  Marco

> > 
> > 
> >  arch/arm/boot/dts/imx7s.dtsi | 13 +++++++++++++
> >  1 file changed, 13 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/imx7s.dtsi
> > b/arch/arm/boot/dts/imx7s.dtsi
> > index 1cfaf410aa43..22e4c38223bd 100644
> > --- a/arch/arm/boot/dts/imx7s.dtsi
> > +++ b/arch/arm/boot/dts/imx7s.dtsi
> > @@ -1162,6 +1162,19 @@
> >  				status = "disabled";
> >  			};
> >  
> > +			qspi: qspi@...b0000 {
> > +				compatible = "fsl,imx7d-qspi";
> > +				reg = <0x30bb0000 0x10000>, <0x60000000
> > 0x10000000>;
> > +				reg-names = "QuadSPI", "QuadSPI-
> > memory";
> > +				#address-cells = <1>;
> > +				#size-cells = <0>;
> > +				interrupts = <GIC_SPI 107
> > IRQ_TYPE_LEVEL_HIGH>;
> > +				clocks = <&clks IMX7D_QSPI_ROOT_CLK>,
> > +					<&clks IMX7D_QSPI_ROOT_CLK>;
> > +				clock-names = "qspi_en", "qspi";
> > +				status = "disabled";
> > +			};
> > +
> >  			sdma: sdma@...d0000 {
> >  				compatible = "fsl,imx7d-sdma",
> > "fsl,imx35-sdma";
> >  				reg = <0x30bd0000 0x10000>;
> 
> 

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