PCI: aardvark: Fix reporting Data Link Layer Link Active

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Add support for reporting PCI_EXP_LNKSTA_DLLLA bit in Link Control register
on emulated bridge via current LTSSM state. Also correctly indicate DLLLA
capability via PCI_EXP_LNKCAP_DLLLARC bit in Link Control Capability
register.

Link: https://lore.kernel.org/r/20211005180952.6812-14-kabel@kernel.org
Fixes: 8a3ebd8de3 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org

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Pali Rohár 2021-10-05 20:09:52 +02:00 • committed by Lorenzo Pieralisi

parent 661c399a65

commit 2b650b7ff2

1 changed files with 28 additions and 1 deletions

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drivers/pci/controller/pci-aardvark.c

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