From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: Hui Wang <hui.wang@canonical.com>,
alsa-devel@alsa-project.org, stable@vger.kernel.org
Subject: Re: [PATCH] Revert "ALSA: hda: call runtime_allow() for all hda controllers"
Date: Mon, 3 Aug 2020 12:00:30 -0500 [thread overview]
Message-ID: <6f583ccc-2251-384d-bc20-aa17c83a45b4@linux.intel.com> (raw)
In-Reply-To: <s5hwo2f3cux.wl-tiwai@suse.de>
On 8/3/20 11:36 AM, Takashi Iwai wrote:
> On Mon, 03 Aug 2020 17:27:12 +0200,
> Pierre-Louis Bossart wrote:
>>
>>
>>
>> On 8/3/20 1:46 AM, Hui Wang wrote:
>>> This reverts commit 9a6418487b56 ("ALSA: hda: call runtime_allow()
>>> for all hda controllers").
>>>
>>> The reverted patch already introduced some regressions on some
>>> machines:
>>> - on gemini-lake machines, the error of "azx_get_response timeout"
>>> happens in the hda driver.
>>> - on the machines with alc662 codec, the audio jack detection doesn't
>>> work anymore.
>>>
>>> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=208511
>>> Cc: <stable@vger.kernel.org>
>>> Signed-off-by: Hui Wang <hui.wang@canonical.com>
>>> ---
>>> sound/pci/hda/hda_intel.c | 1 -
>>> 1 file changed, 1 deletion(-)
>>>
>>> diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
>>> index e699873c8293..e34a4d5d047c 100644
>>> --- a/sound/pci/hda/hda_intel.c
>>> +++ b/sound/pci/hda/hda_intel.c
>>> @@ -2352,7 +2352,6 @@ static int azx_probe_continue(struct azx *chip)
>>> if (azx_has_pm_runtime(chip)) {
>>> pm_runtime_use_autosuspend(&pci->dev);
>>> - pm_runtime_allow(&pci->dev);
>>> pm_runtime_put_autosuspend(&pci->dev);
>>> }
>>
>> Do I get this right that this permanently disables pm_runtime on all
>> Intel HDaudio controllers?
>
> It just drops the unconditional enablement of runtime PM.
> It can be enabled via sysfs, and that's the old default (let admin
> enabling it via udev or whatever).
Sorry I am confused now.
Kai seemed to suggest in the Bugzilla comments that this would be
temporary, until these problems with i915 and ALC662 get fixed?
next prev parent reply other threads:[~2020-08-03 17:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-03 6:46 [PATCH] Revert "ALSA: hda: call runtime_allow() for all hda controllers" Hui Wang
2020-08-03 7:30 ` Takashi Iwai
2020-08-03 15:27 ` Pierre-Louis Bossart
2020-08-03 16:36 ` Takashi Iwai
2020-08-03 17:00 ` Pierre-Louis Bossart [this message]
2020-08-03 17:40 ` Takashi Iwai
2020-08-03 17:50 ` Pierre-Louis Bossart
2020-08-04 0:21 ` Hui Wang
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