linux-kernel - Re: [PATCH 4.14 069/143] ARM: tegra: Fix ULPI regression on Tegra20

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Message-ID: <1541497955.11252.2.camel@toradex.com>
Date:   Tue, 6 Nov 2018 09:52:37 +0000
From:   Marcel Ziswiler <marcel.ziswiler@...adex.com>
To:     "sashal@...nel.org" <sashal@...nel.org>
CC:     "robh@...nel.org" <robh@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "sudipm.mukherjee@...il.com" <sudipm.mukherjee@...il.com>,
        "digetx@...il.com" <digetx@...il.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "treding@...dia.com" <treding@...dia.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH 4.14 069/143] ARM: tegra: Fix ULPI regression on Tegra20

On Tue, 2018-11-06 at 01:31 -0500, Sasha Levin wrote:
> On Mon, Nov 05, 2018 at 02:05:49PM +0000, Marcel Ziswiler wrote:
> > On Fri, 2018-11-02 at 22:02 -0400, Sasha Levin wrote:
> > > On Fri, Nov 02, 2018 at 07:56:57PM +0000, Sudip Mukherjee wrote:
> > > > Hi Greg,
> > > > 
> > > > On Fri, Nov 2, 2018 at 6:53 PM Greg Kroah-Hartman
> > > > <gregkh@...uxfoundation.org> wrote:
> > > > > 
> > > > > 4.14-stable review patch.  If anyone has any objections,
> > > > > please
> > > > > let me know.
> > > > 
> > > > It seems this has already been reverted upstream:
> > > > 9bf4e370048d ("ARM: dts: tegra20: Revert "Fix ULPI regression
> > > > on
> > > > Tegra20"")
> > > 
> > > The commit log of 9bf4e370048d suggests that this issue was fixed
> > > somewhere else which made 9bf4e370048d unnecessary. Can someone
> > > point
> > > to
> > > that fix?
> > 
> > Yes, sorry. That got fixed properly by Dmitry in 5d797111afe1
> > ("clk:
> > tegra: Add quirk for getting CDEV1/2 clocks on Tegra20").
> 
> Thank you. I've replaced it for 4.14, but for 4.9 it seems there are
> quite a few dependencies to pick 5d797111afe1 so I only removed
> 4c9a27a6c66d. If you have a backport for 4.9 I'll be happy to take
> it.

I believe the particular problem I was seeing did not exhibit itself
before much later than 4.9 or 4.14 and was caused by some re-work of
the clocking stuff which slightly changed order of things being
initialised.

> --
> Thanks,
> Sasha