linux-kernel - Re: [PATCH] arm64: dts: imx8m: add syscon node for display_blk

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Message-ID: <20211101225827.GA9208@tom-desktop>
Date:   Mon, 1 Nov 2021 23:58:27 +0100
From:   Tommaso Merciai <tomm.merciai@...il.com>
To:     Ahmad Fatoum <a.fatoum@...gutronix.de>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        Peng Fan <peng.fan@....com>, Alice Guo <alice.guo@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Joakim Zhang <qiangqing.zhang@....com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        Adam Ford <aford173@...il.com>,
        Lucas Stach <l.stach@...gutronix.de>
Subject: Re: [PATCH] arm64: dts: imx8m: add syscon node for display_blk_ctrl
 module regs

On Mon, Nov 01, 2021 at 11:35:49PM +0100, Ahmad Fatoum wrote:
> Hello Tommaso,
> 
> On 01.11.21 23:28, Tommaso Merciai wrote:
> > Add system controller node for registers of module Display Block Control
> > (DISPLAY_BLK_CTRL, base address: 0x32e28000).
> > The DISPLAY_BLK_CTRL module contains general purpose registers (GPRs),
> > which control varied features of the associated peripherals.
> > Reference: IMX8MMRM Rev. 3, 11/2020, p 3897
> > ---
> >  arch/arm64/boot/dts/freescale/imx8mm.dtsi | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > index 2f632e8ca388..3e496b457e1a 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > @@ -961,6 +961,11 @@ aips4: bus@...00000 {
> >  			#size-cells = <1>;
> >  			ranges = <0x32c00000 0x32c00000 0x400000>;
> >  
> > +			dispmix_gpr: display-gpr@...28000 {
> > +				compatible = "fsl, imx8mm-iomuxc-gpr", "syscon";
> 
> Please read vendor patches before submitting them. The space
> is out-of-place in the compatible and the compatible is wrong:
> This doesn't look like a i.MX8MM pin controller.
> 
> Cheers,
> Ahmad

  Hi Ahmad,
  Thanks for your review. Do you think this is correct?

  compatible = "fsl,imx8mm-dispmix-gpr", "syscon";

  Let me know.

  Thanks,
  Tommaso

> 
> > +				reg = <0x32e28000 0x100>;
> > +			};
> > +
> >  			usbotg1: usb@...40000 {
> >  				compatible = "fsl,imx8mm-usb", "fsl,imx7d-usb";
> >  				reg = <0x32e40000 0x200>;
> > 
> 
> 
> -- 
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