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The calls to devm_gpiod_get_optional() have the -gpios at the end of the name but the GPIO core code is already adding the suffix during the lookup. This means the PCIe driver is not finding the necessary reset or power lines to allow initialisation of the PCIe. Drop the redundant '-gpios' when we look up GPIOs from the DT. This bug has not been noticed because if U-Boot has setup the GPIO lines for the hardware when it does the PCIe initialisation (either by booting from PCIe or user command to access PCIe) then the PCIe will work in Linux. The U-Boot as supplied by SiFive does not by default initialise any PCIe component. Link: https://lore.kernel.org/r/20220221210347.1335004-1-ben.dooks@codethink.co.uk Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| pci-dra7xx.c | ||
| pci-exynos.c | ||
| pci-imx6.c | ||
| pci-keystone.c | ||
| pci-layerscape-ep.c | ||
| pci-layerscape.c | ||
| pci-meson.c | ||
| pcie-al.c | ||
| pcie-armada8k.c | ||
| pcie-artpec6.c | ||
| pcie-designware-ep.c | ||
| pcie-designware-host.c | ||
| pcie-designware-plat.c | ||
| pcie-designware.c | ||
| pcie-designware.h | ||
| pcie-dw-rockchip.c | ||
| pcie-fu740.c | ||
| pcie-hisi.c | ||
| pcie-histb.c | ||
| pcie-intel-gw.c | ||
| pcie-keembay.c | ||
| pcie-kirin.c | ||
| pcie-qcom-ep.c | ||
| pcie-qcom.c | ||
| pcie-spear13xx.c | ||
| pcie-tegra194-acpi.c | ||
| pcie-tegra194.c | ||
| pcie-uniphier-ep.c | ||
| pcie-uniphier.c | ||
| pcie-visconti.c | ||