linux-kernel - Re: [PATCH v4 3/3] phy: mediatek: tphy: add debugfs files

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Message-ID: <Y4S/GhUcrxJ9W/gE@lunn.ch>
Date:   Mon, 28 Nov 2022 15:00:58 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Chunfeng Yun (云春峰) 
        <Chunfeng.Yun@...iatek.com>
Cc:     "vkoul@...nel.org" <vkoul@...nel.org>,
        "llvm@...ts.linux.dev" <llvm@...ts.linux.dev>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "nathan@...nel.org" <nathan@...nel.org>,
        "kishon@...com" <kishon@...com>,
        Eddie Hung (洪正鑫) 
        <Eddie.Hung@...iatek.com>,
        Tianping Fang (方天平) 
        <Tianping.Fang@...iatek.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
        "trix@...hat.com" <trix@...hat.com>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "ndesaulniers@...gle.com" <ndesaulniers@...gle.com>
Subject: Re: [PATCH v4 3/3] phy: mediatek: tphy: add debugfs files

On Mon, Nov 28, 2022 at 07:26:02AM +0000, Chunfeng Yun (云春峰) wrote:
> On Thu, 2022-11-24 at 23:17 +0530, Vinod Koul wrote:
> > On 10-11-22, 21:27, Chunfeng Yun wrote:
> > > These debugfs files are mainly used to make eye diagram test
> > > easier,
> > > especially helpful to do HQA test for a new IC without efuse
> > > enabled.

Exporting data for eye diagrams seems like something many PHYs could
use. Please consider adding an official uniform API which any PHY
could use, so we don't end up with lots of incompatible formats in
debugfs.

	Andrew