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SubjectRE: [EXT] Re: [PATCH 2/2] arm64: dts: fsl: ls1046a: Add the guts node in dts
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> -----Original Message-----
> From: Sascha Hauer <s.hauer@pengutronix.de>
> Sent: 2019年5月6日 15:41
> To: Chuanhua Han <chuanhua.han@nxp.com>
> Cc: shawnguo@kernel.org; Leo Li <leoyang.li@nxp.com>; robh+dt@kernel.org;
> mark.rutland@arm.com; linux-kernel@vger.kernel.org;
> linux-i2c@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
> devicetree@vger.kernel.org; festevam@gmail.com; dl-linux-imx
> <linux-imx@nxp.com>; wsa+renesas@sang-engineering.com;
> u.kleine-koenig@pengutronix.de; eha@deif.com; linux@rempel-privat.de;
> l.stach@pengutronix.de; peda@axentia.se; Sumit Batra
> <sumit.batra@nxp.com>
> Subject: [EXT] Re: [PATCH 2/2] arm64: dts: fsl: ls1046a: Add the guts node in
> dts
>
> Caution: EXT Email
>
> On Tue, Apr 30, 2019 at 12:47:19PM +0800, Chuanhua Han wrote:
> > For NXP ls1046a SoC, the i2c clock needs to be configured with the
> > appropriate bit of RCW, so we add the guts node (GUTS/DCFG global
> > utilities block) for the driver to read.
> >
> > Signed-off-by: Sumit Batra <sumit.batra@nxp.com>
> > Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
> > ---
> > arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 5 +++++
> > 1 file changed, 5 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
> > b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
> > index 373310e4c0ea..f88599df18bb 100644
> > --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
> > @@ -205,6 +205,11 @@
> > status = "disabled";
> > };
> >
> > + guts: global-utilities@1ee0000 {
> > + compatible = "fsl,qoriq-device-config";
> > + reg = <0x0 0x1ee0000 0x0 0x1000>;
> > + };
>
> According to Documentation/devicetree/bindings/soc/fsl/guts.txt we have the
> following compatibles:
>
> "fsl,qoriq-device-config-1.0"
> "fsl,qoriq-device-config-2.0"
> "fsl,<chip>-device-config"
> "fsl,<chip>-guts"
>
> "fsl,qoriq-device-config" is none of them and I don't think you should give this
> SoC specific thing a generic compatible.
> "fsl,ls1046a-device-config" would be better.
>
Yes, you should be right
> Sascha
>
>
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