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From: Lucas Stach <l.stach@pengutronix.de>
To: "Guido Günther" <agx@sigxcpu.org>,
	"Shawn Guo" <shawnguo@kernel.org>,
	"Sascha Hauer" <s.hauer@pengutronix.de>,
	"Pengutronix Kernel Team" <kernel@pengutronix.de>,
	"Fabio Estevam" <fabio.estevam@nxp.com>,
	"NXP Linux Team" <linux-imx@nxp.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: imx8mq: Add system reset controller
Date: Tue, 15 Jan 2019 12:51:57 +0100	[thread overview]
Message-ID: <1547553117.4339.8.camel@pengutronix.de> (raw)
In-Reply-To: <20190115114641.GA15870@bogon.m.sigxcpu.org>

Am Dienstag, den 15.01.2019, 12:46 +0100 schrieb Guido Günther:
> We can reuse the src from fsl,imx51-src as with other imx SOCs.

That's not true. The SRC is significantly different from the i.MX51
one. See series "[PATCH v4 0/3] Reset controller support for i.MX8MQ".

We generally don't add the DT nodes until at least the binding, better
yet the full driver, is upstream.

Regards,
Lucas

> 
> > Signed-off-by: Guido Günther <agx@sigxcpu.org>
> ---
> I'm mostly interested in the syscon part to be able to use regmap for
> MIPI DSI here.
> 
> Patch is against next-20190114 plus Lucas "arm64: dts: imx8mq: move
> watchdog nodes to correct location" but also applies to
> 
>     https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git/log/?h=imx/dt64
> 
> It will conflict with "arm64: dts: imx8mq: add GPC power domains" which
> is not yet in any tree I've seen.
> 
>  arch/arm64/boot/dts/freescale/imx8mq.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> index 0225eae2216e..7b1e0bdbd932 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> @@ -252,6 +252,13 @@
> >  				              "clk_ext1", "clk_ext2",
> >  				              "clk_ext3", "clk_ext4";
> >  			};
> +
> > > +			src: src@30390000 {
> > +				compatible = "fsl,imx8mq-src", "fsl,imx51-src", "syscon";
> > +				reg = <0x30390000 0x10000>;
> > +				interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> > +				#reset-cells = <1>;
> > +			};
> >  		};
>  
> >  		bus@30400000 { /* AIPS2 */

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  reply	other threads:[~2019-01-15 11:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-15 11:46 [PATCH] arm64: dts: imx8mq: Add system reset controller Guido Günther
2019-01-15 11:51 ` Lucas Stach [this message]
2019-01-15 12:35   ` Guido Günther

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