Re: [Patch] thunderbolt: Add quirk to reset downstream port

On 11/21/2023 11:34 PM, Greg KH wrote:

On Tue, Nov 21, 2023 at 11:17:01PM +0530, Sanath S wrote:

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Boot firmware on AMD's Yellow Carp and Pink Sardine allocates very minimal buses for PCIe downstream ports. This results in failure to extend the daisy chain.

Add quirk to reset the downstream port to help reset the topology created by boot firmware.

Suggested-by: Mario Limonciello mario.limonciello@amd.com Signed-off-by: Sanath S Sanath.S@amd.com

Fixes: e390909ac763("thunderbolt: Add vendor specific NHI quirk for auto-clearing interrupt status")

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Cc: stable@vger.kernel.org

What commit id does this fix?

thanks,

greg k-h