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PCI: rockchip: Fix legacy IRQ generation for RK3399 PCIe endpoint core
Fix legacy IRQ generation for RK3399 PCIe endpoint core according to the technical reference manual (TRM). Assert and deassert legacy interrupt (INTx) through the legacy interrupt control register ("PCIE_CLIENT_LEGACY_INT_CTRL") instead of manually generating a PCIe message. The generation of the legacy interrupt was tested and validated with the PCIe endpoint test driver. Link: https://lore.kernel.org/r/20230418074700.1083505-8-rick.wertenbroek@gmail.com Fixes: cf590b0 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller") Tested-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Rick Wertenbroek <rick.wertenbroek@gmail.com> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Cc: stable@vger.kernel.org
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Rick Wertenbroek
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Lorenzo Pieralisi
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Jun 22, 2023
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