linux-kernel - Re: [EXT] Re: [PATCH v7 3/4] dt-bindings: irqchip: imx mu work as msi controller

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Message-ID: <87zgfqvfvv.wl-maz@kernel.org>
Date:   Fri, 26 Aug 2022 22:44:52 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Frank Li <frank.li@....com>
Cc:     Rob Herring <robh@...nel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kw@...ux.com" <kw@...ux.com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Peng Fan <peng.fan@....com>,
        Aisheng Dong <aisheng.dong@....com>,
        "jdmason@...zu.us" <jdmason@...zu.us>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "kishon@...com" <kishon@...com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "ntb@...ts.linux.dev" <ntb@...ts.linux.dev>,
        "lznuaa@...il.com" <lznuaa@...il.com>
Subject: Re: [EXT] Re: [PATCH v7 3/4] dt-bindings: irqchip: imx mu work as msi controller

On Fri, 26 Aug 2022 19:59:44 +0100,
Frank Li <frank.li@....com> wrote:
> 
> > And I stand by my initial request. "a" doesn't convey any sort of
> > useful information. Why not "I" and "II", while we're at it? Or
> > something even funkier?
> 
> MU spec use term "a" and "b",  user have to map "I" an "II" to 
> "a" and "b" when read MU spec and code. it is not straightforward.
> 
> I quote a part of spec. 
> " The MU is connected as a peripheral under the Peripheral bus on both sides-on
> the Processor A-side, the Processor A Peripheral Bus, and on the Processor B side,
> the Processor B Peripheral Bus."
> 
> Rob Herring and Marc Zynginer:
> I can change to any name, which you agree both. 
> 
> Some options:
> 1. "a", "b"
> 2. "a-side", "b-side"
> 3. "a-facing", "b-facing"
> 4. "I", "II"

Use the wording indicated in the spec: "processor-a-side", and
"processor-b-side". This is what I asked the first place.

	M.

-- 
Without deviation from the norm, progress is not possible.