This series of patches adds, - Tegra root port features like Gen2, AER, etc - Power and perf optimizations - Fixes like "power up sequence", "dev_err prints", etc This series of patches are tested on Tegra186 based Jetson-TX2, Tegra210 based Jetson-TX1, T124 based Jetson-TK1, Tegra20 and Tegra30 platforms. Changes from v4 to v5: - Patch [V4, 4/28]: Added blank line before block style comment - Patch [V4, 22/28]: "Access endpoint config only if PCIe link is up" patch is dropped - Patch [V4, 27/28]: * Updated reset gpio toggle logic to reflect active low usage * Replaced kasprintf() with devm_kasprintf() * Updated commit message with more information. Changes from v3 to v4: - Patch [V3,27/29] is dropped - Patch [V3,28/29]: devm_gpiod_get_from_of_node() is directly used in pci-tegra driver instead of of_get_pci* wrapper function defined in Patch [V3,27/29]. Manikanta Maddireddy (27): soc/tegra: pmc: Export tegra_powergate_power_on() PCI: tegra: Handle failure cases in tegra_pcie_power_on() PCI: tegra: Rearrange Tegra PCIe driver functions PCI: tegra: Mask AFI_INTR in runtime suspend PCI: tegra: Fix PCIe host power up sequence PCI: tegra: Add PCIe Gen2 link speed support PCI: tegra: Advertise PCIe Advanced Error Reporting (AER) capability PCI: tegra: Program UPHY electrical settings for Tegra210 PCI: tegra: Enable opportunistic UpdateFC and ACK PCI: tegra: Disable AFI dynamic clock gating PCI: tegra: Process pending DLL transactions before entering L1 or L2 PCI: tegra: Enable PCIe xclk clock clamping PCI: tegra: Increase the deskew retry time PCI: tegra: Add SW fixup for RAW violations PCI: tegra: Update flow control timer frequency in Tegra210 PCI: tegra: Set target speed as Gen1 before starting LTSSM PCI: tegra: Fix PLLE power down issue due to CLKREQ# signal PCI: tegra: Program AFI_CACHE* registers only for Tegra20 PCI: tegra: Change PRSNT_SENSE IRQ log to debug PCI: tegra: Use legacy IRQ for port service drivers PCI: tegra: Add AFI_PEX2_CTRL reg offset as part of soc struct dt-bindings: pci: tegra: Document PCIe DPD pinctrl optional prop arm64: tegra: Add PEX DPD states as pinctrl properties PCI: tegra: Put PEX CLK & BIAS pads in DPD mode PCI: Add DT binding for "reset-gpios" property PCI: tegra: Add support for GPIO based PERST# PCI: tegra: Change link retry log level to debug .../bindings/pci/nvidia,tegra20-pcie.txt | 8 + Documentation/devicetree/bindings/pci/pci.txt | 3 + arch/arm64/boot/dts/nvidia/tegra210.dtsi | 19 + drivers/pci/controller/pci-tegra.c | 582 +++++++++++++++--- drivers/soc/tegra/pmc.c | 1 + 5 files changed, 533 insertions(+), 80 deletions(-) -- 2.17.1
