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Date:   Tue, 25 Oct 2022 14:37:34 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Christian Bach <christian.bach@scs.ch>
Cc:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "regressions@lists.linux.dev" <regressions@lists.linux.dev>,
        "linux@roeck-us.net" <linux@roeck-us.net>,
        "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>
Subject: Re: tcpci module in Kernel 5.15.74 with PTN5110 not working correctly
Message-ID: <Y1fYjmtQZa53dPfR@kroah.com>
References: <ZR0P278MB0773545F02B32FAF648F968AEB319@ZR0P278MB0773.CHEP278.PROD.OUTLOOK.COM>
 <ZR0P278MB0773072DD153BA902AFE635AEB319@ZR0P278MB0773.CHEP278.PROD.OUTLOOK.COM>
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On Tue, Oct 25, 2022 at 12:19:39PM +0000, Christian Bach wrote:
> Hello
> 
> For a few weeks now I am trying to make the PTN5110 chip work with the new Kernel 5.15.74. The same hardware setup was working with the 4.19.72 Kernel. The steps I took so far are as follows:

That is a huge jump.  Why not use 'git bisect'?

Or start with a smaller jump.  Why not go to 5.4.y first, that's only a
year's worth of changes, instead of 4 years of changes.

thanks,

greg k-h