mirror of
https://github.com/raspberrypi/linux.git
synced 2025-12-15 22:41:38 +00:00
4fbfa17f9a
Add support to provide Silicon Debug interface to userspace. This set of debug registers are part of the RAS DES feature present in DesignWare PCIe controllers. Co-developed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Shradha Todi <shradha.t@samsung.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Fan Ni <fan.ni@samsung.com> Tested-by: Hrishikesh Deleep <hrishikesh.d@samsung.com> Link: https://lore.kernel.org/r/20250221131548.59616-4-shradha.t@samsung.com [kwilczynski: commit log, tidy up Kconfig and drop "default y", tidy up code comments, squashed patch that fixes a NULL pointer dereference when debugfs is already unavailable during clean-up from https://lore.kernel.org/linux-pci/20250225171239.19574-2-manivannan.sadhasivam@linaro.org, refactor dwc_pcie_debugfs_init() to not return errors, squashed patch that changes how lack of the RAS DES capability is handled from https://lore.kernel.org/linux-pci/20250304151814.6xu7cbpwpqrvcad5@thinkpad] Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>