From: Kai-Heng Feng <kai.heng.feng@canonical.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: bhelgaas@google.com, alsa-devel@alsa-project.org,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org
Subject: Re: [PATCH 1/2] PCI: Add a helper to check Power Resource Requirements _PR3 existence
Date: Wed, 28 Aug 2019 00:58:28 +0800 [thread overview]
Message-ID: <0379E973-651A-442C-AF74-51702388F55D@canonical.com> (raw)
In-Reply-To: <s5hr2567hrd.wl-tiwai@suse.de>
at 23:25, Takashi Iwai <tiwai@suse.de> wrote:
> On Tue, 27 Aug 2019 15:47:55 +0200,
> Kai-Heng Feng wrote:
>> A driver may want to know the existence of _PR3, to choose different
>> runtime suspend behavior. A user will be add in next patch.
>>
>> This is mostly the same as nouveau_pr3_present().
>
> Then it'd be nice to clean up the nouveau part, too?
nouveau_pr3_present() may call pci_d3cold_disable(), and my intention is to
only check the presence of _PR3 (i.e. a dGPU) without touching anything.
Kai-Heng
>
>
> thanks,
>
> Takashi
next prev parent reply other threads:[~2019-08-27 16:58 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-27 13:47 [PATCH 1/2] PCI: Add a helper to check Power Resource Requirements _PR3 existence Kai-Heng Feng
2019-08-27 13:47 ` [PATCH 2/2] ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound Kai-Heng Feng
2019-08-27 14:50 ` Kai-Heng Feng
2019-08-27 15:24 ` Takashi Iwai
2019-08-27 22:31 ` Bjorn Helgaas
2019-08-28 8:25 ` Kai-Heng Feng
2019-08-28 18:01 ` [PATCH v2 " Kai-Heng Feng
2019-09-05 21:35 ` Bjorn Helgaas
2019-09-17 9:36 ` Kai-Heng Feng
2019-09-18 12:42 ` [PATCH v3 2/2] ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound to a driver Kai-Heng Feng
2019-08-27 15:25 ` [PATCH 1/2] PCI: Add a helper to check Power Resource Requirements _PR3 existence Takashi Iwai
2019-08-27 16:58 ` Kai-Heng Feng [this message]
2019-08-27 22:13 ` Bjorn Helgaas
2019-08-27 22:39 ` Peter Wu
2019-09-09 11:41 ` Bjorn Helgaas
2019-09-20 11:23 ` Kai-Heng Feng
2019-09-20 13:26 ` Bjorn Helgaas
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