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path: root/drivers/phy/tegra/phy-tegra194-p2u.c
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2023-07-17phy: Explicitly include correct DT includesRob Herring
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for drivers/phy/phy-can-transceiver.c Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20230714174841.4061919-1-robh@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-10-28phy: tegra: p2u: Set ENABLE_L2_EXIT_RATE_CHANGE in calibrationVidya Sagar
Set ENABLE_L2_EXIT_RATE_CHANGE register bit to request UPHY PLL rate change to Gen1 during initialization. This helps in the below surprise link down cases, - Surprise link down happens at Gen3/Gen4 link speed. - Surprise link down happens and external REFCLK is cut off, which causes UPHY PLL rate to deviate to an invalid rate. Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Link: https://lore.kernel.org/r/20221013183854.21087-9-vidyas@nvidia.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-07-05phy: tegra: Add PCIe PIPE2UPHY support for Tegra234Vidya Sagar
Synopsys DesignWare core based PCIe controllers in Tegra234 SoC interface with Universal PHY (UPHY) module through a PIPE2UPHY (P2U) module. For each PCIe lane of a controller, there is a P2U unit instantiated at hardware level. This driver provides support for the programming required for each P2U that is going to be used for a PCIe controller. Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Link: https://lore.kernel.org/r/20220629060435.25297-9-vidyas@nvidia.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-11-16phy: tegra: convert to devm_platform_ioremap_resource(_byname)Chunfeng Yun
Use devm_platform_ioremap_resource(_byname) to simplify code Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Cc: JC Kuo <jckuo@nvidia.com> Link: https://lore.kernel.org/r/1604642930-29019-16-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-13phy: tegra: Add PCIe PIPE2UPHY supportVidya Sagar
Synopsys DesignWare core based PCIe controllers in Tegra 194 SoC interface with Universal PHY (UPHY) module through a PIPE2UPHY (P2U) module. For each PCIe lane of a controller, there is a P2U unit instantiated at hardware level. This driver provides support for the programming required for each P2U that is going to be used for a PCIe controller. Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Thierry Reding <treding@nvidia.com>