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Date:   Sun, 16 Jul 2023 11:26:43 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     "Limonciello, Mario" <mario.limonciello@amd.com>
Cc:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "Pananchikkal, Renjith" <Renjith.Pananchikkal@amd.com>,
        "Gong, Richard" <Richard.Gong@amd.com>
Subject: Re: Mark dGPUs as devices
Message-ID: <2023071635-profusely-latch-8f20@gregkh>
References: <050d87f7-5a77-571d-f5c9-f66f39ba2f2e@amd.com>
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On Wed, Jul 12, 2023 at 04:51:24PM -0500, Limonciello, Mario wrote:
> Hi,
> 
> A problem exists where dGPUs with type-C ports are considered power supplies
> that power the system.
> This leads to poor performance of the dGPU because graphics drivers like
> amdgpu use power_supply_is_system_supplied() to decide how to configure the
> dGPU.
> This has been fixed in 6.5-rc1 by marking dGPUs as "DEVICE".
> 
> The logic to fix what to do when DEVICE is encountered was fixed in 6.4-rc4
> and already backported to stable:
> 95339f40a8b6 ("power: supply: Fix logic checking if system is running from
> battery")
> 
> So to wrap up the fix in stable kernels can you please backport:
> 
> 6.4.y:
> a7fbfd44c020 ("usb: typec: ucsi: Mark dGPUs as DEVICE scope")
> 
> 6.1.y:
> f510b0a3565b ("i2c: nvidia-gpu: Add ACPI property to align with
> device-tree")
> 430b38764fbb ("i2c: nvidia-gpu: Remove ccgx,firmware-build property")
> a7fbfd44c020 ("usb: typec: ucsi: Mark dGPUs as DEVICE scope")

All now qeueud up, thanks.

greg k-h