From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Sathyanarayanan Kuppuswamy
<sathyanarayanan.kuppuswamy@linux.intel.com>,
linux-pci@vger.kernel.org
Subject: Re: [PATCH v2] PCI/portdrv: Do not require an interrupt for all AER capable ports
Date: Thu, 8 Dec 2022 16:12:26 +0200 [thread overview]
Message-ID: <Y5HwyuakOOjwtj83@black.fi.intel.com> (raw)
In-Reply-To: <Y5HtezTzYaU6ZOcM@black.fi.intel.com>
On Thu, Dec 08, 2022 at 03:58:19PM +0200, Mika Westerberg wrote:
> If there is no driver attached to PCI device (this case upstream port)
> it will not enter low power states. It allows GPU to suspend but it
> does not allow the whole topology to enter low power states.
Ah, also in our case they saw the portdv probe fail in the logs.
next prev parent reply other threads:[~2022-12-08 14:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-07 8:41 [PATCH v2] PCI/portdrv: Do not require an interrupt for all AER capable ports Mika Westerberg
2022-12-07 14:31 ` Sathyanarayanan Kuppuswamy
2022-12-07 22:35 ` Bjorn Helgaas
2022-12-08 5:58 ` Mika Westerberg
2022-12-08 12:23 ` Bjorn Helgaas
2022-12-08 13:58 ` Mika Westerberg
2022-12-08 14:12 ` Mika Westerberg [this message]
2022-12-09 17:07 ` Bjorn Helgaas
2022-12-09 21:04 ` Sathyanarayanan Kuppuswamy
2022-12-09 21:48 ` Bjorn Helgaas
2022-12-09 22:13 ` Sathyanarayanan Kuppuswamy
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