linux-kernel - RE: [EXT] Re: [PATCH] arm64: dts: ls1028a: fix watchdog device node

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Message-ID: <AM6PR04MB435708872A4DBA92561C772597000@AM6PR04MB4357.eurprd04.prod.outlook.com>
Date:   Wed, 22 May 2019 06:26:19 +0000
From:   Chuanhua Han <chuanhua.han@....com>
To:     Leo Li <leoyang.li@....com>, Shawn Guo <shawnguo@...nel.org>
CC:     "mark.rutland@....com" <mark.rutland@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Ying Zhang <ying.zhang22455@....com>
Subject: RE: [EXT] Re: [PATCH] arm64: dts: ls1028a: fix watchdog device node



> -----Original Message-----
> From: Leo Li
> Sent: 2019年5月22日 4:15
> To: Chuanhua Han <chuanhua.han@....com>; Shawn Guo
> <shawnguo@...nel.org>
> Cc: mark.rutland@....com; linux-arm-kernel@...ts.infradead.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; Ying Zhang
> <ying.zhang22455@....com>
> Subject: RE: [EXT] Re: [PATCH] arm64: dts: ls1028a: fix watchdog device node
> 
> 
> 
> > -----Original Message-----
> > From: Chuanhua Han
> > Sent: Tuesday, May 21, 2019 8:00 AM
> > To: Leo Li <leoyang.li@....com>; Shawn Guo <shawnguo@...nel.org>
> > Cc: mark.rutland@....com; linux-arm-kernel@...ts.infradead.org;
> > devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; Ying Zhang
> > <ying.zhang22455@....com>
> > Subject: RE: [EXT] Re: [PATCH] arm64: dts: ls1028a: fix watchdog
> > device node
> >
> >
> >
> > > -----Original Message-----
> > > From: Leo Li
> > > Sent: 2019年5月18日 6:01
> > > To: Chuanhua Han <chuanhua.han@....com>; Shawn Guo
> > > <shawnguo@...nel.org>
> > > Cc: mark.rutland@....com; linux-arm-kernel@...ts.infradead.org;
> > > devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; Ying Zhang
> > > <ying.zhang22455@....com>
> > > Subject: RE: [EXT] Re: [PATCH] arm64: dts: ls1028a: fix watchdog
> > > device node
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Chuanhua Han
> > > > Sent: Friday, May 17, 2019 1:11 AM
> > > > To: Shawn Guo <shawnguo@...nel.org>
> > > > Cc: Leo Li <leoyang.li@....com>; mark.rutland@....com; linux-arm-
> > > > kernel@...ts.infradead.org; devicetree@...r.kernel.org; linux-
> > > > kernel@...r.kernel.org; Ying Zhang <ying.zhang22455@....com>
> > > > Subject: RE: [EXT] Re: [PATCH] arm64: dts: ls1028a: fix watchdog
> > > > device node
> > > >
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Shawn Guo <shawnguo@...nel.org>
> > > > > Sent: 2019年5月17日 10:38
> > > > > To: Chuanhua Han <chuanhua.han@....com>
> > > > > Cc: Leo Li <leoyang.li@....com>; mark.rutland@....com;
> > > > > linux-arm-kernel@...ts.infradead.org;
> > > > > devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; Ying
> > > > > Zhang <ying.zhang22455@....com>
> > > > > Subject: [EXT] Re: [PATCH] arm64: dts: ls1028a: fix watchdog
> > > > > device node
> > > > >
> > > > > Caution: EXT Email
> > > > >
> > > > > On Thu, May 09, 2019 at 03:06:57PM +0800, Chuanhua Han wrote:
> > > > > > ls1028a platform uses sp805 watchdog, and use 1/16 platform
> > > > > > clock as timer clock, this patch fix device tree node.
> > > > > >
> > > > > > Signed-off-by: Zhang Ying-22455 <ying.zhang22455@....com>
> > > > > > Signed-off-by: Chuanhua Han <chuanhua.han@....com>
> > > > > > ---
> > > > > >  .../arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 19
> > > > > > ++++++++++++-------
> > > > > >  1 file changed, 12 insertions(+), 7 deletions(-)
> > > > > >
> > > > > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > > > > > b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > > > > > index b04581249f0b..1510b1858246 100644
> > > > > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > > > > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > > > > > @@ -285,13 +285,18 @@
> > > > > >                       #interrupt-cells = <2>;
> > > > > >               };
> > > > > >
> > > > > > -             wdog0: watchdog@...0000 {
> > > > > > -                     compatible = "fsl,ls1028a-wdt",
> "fsl,imx21-wdt";
> > > > > > -                     reg = <0x0 0x23c0000 0x0 0x10000>;
> > > > > > -                     interrupts = <GIC_SPI 59
> > > IRQ_TYPE_LEVEL_HIGH>;
> > > > > > -                     clocks = <&clockgen 4 1>;
> > > > > > -                     big-endian;
> > > > > > -                     status = "disabled";
> > > > > > +             cluster1_core0_watchdog: wdt@...0000 {
> > > > >
> > > > > Keep 'watchdog' as the node name,
> > > > Thanks for your replay
> > > > Do you mean replace the ‘wdt’ with ‘watchdog’?
> > > > and keep nodes sort in unit-address.
> > > > What does this mean?
> > >
> > > That means order the nodes by the addresses (e.g. c000000, c010000)
> > The current order is correct（The first is c000000, then c000000）.
> 
> But they are added after gpio@...0000 and before sata@...0000.
I changed and made the second version of the patch, but I found the following error
when I executed ./scripts/checkpatch.pl xxx.patch to check the patch:

WARNING: DT compatible string vendor "arm" appears un-documented -- check ./Documentation/devicetree/bindings/vendor-prefixes.txt
#43: FILE: arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi:351:
+ compatible = "arm,sp805", "arm,primecell";

However, there is no vendor-prefixes.txt file in the ./Documentation/devicetree/bindings/ directory, only vendor-prefixes.yaml.
Moreover, there are ‘arm’ vendors in vendor-prefixes.yaml. 
Request help，thanks
> 
> > >
> > > > >
> > > > > Shawn
> > > > >
> > > > > > +                     compatible = "arm,sp805", "arm,primecell";
> > > > > > +                     reg = <0x0 0xc000000 0x0 0x1000>;
> > > > > > +                     clocks = <&clockgen 4 15>, <&clockgen 4
> 15>;
> > > > > > +                     clock-names = "apb_pclk", "wdog_clk";
> > > > > > +             };
> > > > > > +
> > > > > > +             cluster1_core1_watchdog: wdt@...0000 {
> > > > > > +                     compatible = "arm,sp805", "arm,primecell";
> > > > > > +                     reg = <0x0 0xc010000 0x0 0x1000>;
> > > > > > +                     clocks = <&clockgen 4 15>, <&clockgen 4
> 15>;
> > > > > > +                     clock-names = "apb_pclk", "wdog_clk";
> > > > > >               };
> > > > > >
> > > > > >               sata: sata@...0000 {
> > > > > > --
> > > > > > 2.17.1
> > > > > >