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[ Upstream commit735f5ae49e] The emulated bridge returns incorrect value for PCI_EXP_RTSTA register during readout in advk_pci_bridge_emul_pcie_conf_read() function: the correct bit is BIT(16), but we are setting BIT(23), because the code does *value = (isr0 & PCIE_MSG_PM_PME_MASK) << 16 where PCIE_MSG_PM_PME_MASK is BIT(7). The code should probably have been something like *value = (!!(isr0 & PCIE_MSG_PM_PME_MASK)) << 16, but we are better of using an if() and using the proper macro for this bit. Link: https://lore.kernel.org/r/20220110015018.26359-15-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> Signed-off-by: Sasha Levin <sashal@kernel.org>