linux-kernel - Re: [PATCH 5.15 05/32] drm/vc4: hdmi: Make sure the device is powered with CEC

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Date:   Sun, 6 Feb 2022 09:32:42 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Michael Stapelberg <michael+drm@...pelberg.ch>,
        Maxime Ripard <maxime@...no.tech>
Subject: Re: [PATCH 5.15 05/32] drm/vc4: hdmi: Make sure the device is powered
 with CEC

On 2/6/22 04:09, Greg Kroah-Hartman wrote:
> On Sat, Feb 05, 2022 at 10:41:08AM -0800, Guenter Roeck wrote:
>> Hi Greg,
>>
>> On Sat, Feb 05, 2022 at 06:56:51PM +0100, Greg Kroah-Hartman wrote:
>> [ ... ]
>>>
>>> Yeah, something is really wrong here.  I'm going to go revert this for
>>> now and push out a new set of releases with that fixed.
>>
>> If you pull a release for that, can you possibly revert 9de2b9286a6
>> ("ASoC: mediatek: Check for error clk pointer") as well ? It does not
>> realy fix anything but breaks pretty much all Mediatek systems using
>> the mtk-scpsys driver. I sent a revert request
>> 	https://lore.kernel.org/lkml/20220205014755.699603-1-linux@roeck-us.net/
>> but the it looks like the submitter keeps defending their patch. In the
>> current state, pretty much all stable release starting with v4.19.y won't
>> work for affected systems due to this patch.
> 
> I don't see anyone objecting to the revert in that thread (or any
> responses at all.)  I'll queue up a revert for the next round of
> releases until this all gets worked out.
> 

The discussion isn't easy to find, or at least I only found it
after writing the revert. It is at

https://lore.kernel.org/all/trinity-2a727d96-0335-4d03-8f30-e22a0e10112d-1643363480085@3c-app-gmx-bap33/

Guenter