linux-kernel - RE: [EXT] Re: [v2 01/11] irqchip: ls-extirq: Add LS1043A, LS1088A external interrupt

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Message-ID: <DB6PR0401MB2438ED1C8F629CA1E1F469768F160@DB6PR0401MB2438.eurprd04.prod.outlook.com>
Date:   Tue, 27 Oct 2020 07:48:17 +0000
From:   Biwen Li <biwen.li@....com>
To:     Rasmus Villemoes <linux@...musvillemoes.dk>,
        "Biwen Li (OSS)" <biwen.li@....nxp.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        Leo Li <leoyang.li@....com>, "Z.q. Hou" <zhiqiang.hou@....com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "jason@...edaemon.net" <jason@...edaemon.net>,
        "maz@...nel.org" <maz@...nel.org>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jiafei Pan <jiafei.pan@....com>,
        Xiaobo Xie <xiaobo.xie@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [EXT] Re: [v2 01/11] irqchip: ls-extirq: Add LS1043A, LS1088A
 external interrupt

> 
> Caution: EXT Email
> 
> On 27/10/2020 05.46, Biwen Li wrote:
> > From: Hou Zhiqiang <Zhiqiang.Hou@....com>
> >
> > Add an new IRQ chip declaration for LS1043A and LS1088A
> > - compatible "fsl,ls1043a-extirq" for LS1043A, LS1046A. SCFG_INTPCR[31:0]
> >   of these SoCs is stored/read as SCFG_INTPCR[0:31] defaultly(bit
> >   reverse)
> 
> s/defaultly/by default/ I suppose. But what does that mean? Is it still
> configurable, just now through some undocumented register? If that register
> still exists, does it now have a reset value of all-ones as opposed to the ls1021
> case? If it's not configurable, then describing the situation as "by default" is
> confusing and wrong, it should just say "On LS1043A, LS1046A, SCFG_INTPCR
> is stored/read bit-reversed."
Okay, got it. Will update it in v3. Thanks.
> 
> 
> > - compatible "fsl,ls1088a-extirq" for LS1088A, LS208xA, LX216xA
> >
> > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> > Signed-off-by: Biwen Li <biwen.li@....com>
> > ---
> > Change in v2:
> >       - add despcription of bit reverse
> >       - update copyright
> >
> >  drivers/irqchip/irq-ls-extirq.c | 10 +++++++++-
> >  1 file changed, 9 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/irqchip/irq-ls-extirq.c
> > b/drivers/irqchip/irq-ls-extirq.c index 4d1179fed77c..9587bc2607fc
> > 100644
> > --- a/drivers/irqchip/irq-ls-extirq.c
> > +++ b/drivers/irqchip/irq-ls-extirq.c
> > @@ -1,5 +1,8 @@
> >  // SPDX-License-Identifier: GPL-2.0
> > -
> > +/*
> > + * Author: Rasmus Villemoes <linux@...musvillemoes.dk>
> 
> If I wanted my name splattered all over the files I touch or add, I'd add it myself,
> TYVM. The git history is plenty fine for recording authorship as far as I'm
> concerned, and I absolutely abhor having to skip over any kind of legalese
> boilerplate when opening a file.
Okay, got it. Will drop it in v3. Thanks.
> 
> Rasmus