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path: root/drivers/fpga/xilinx-pr-decoupler.c
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2021-03-24fpga: Add support for Xilinx DFX AXI Shutdown managerNava kishore Manne1-5/+32
This patch adds support for Xilinx Dynamic Function eXchange(DFX) AXI shutdown manager IP. It can be used to safely handling the AXI traffic on a Reconfigurable Partition when it is undergoing dynamic reconfiguration and there by preventing system deadlock that may occur if AXI transactions are interrupted during reconfiguration. PR-Decoupler and AXI shutdown manager are completely different IPs. But both the IP registers are compatible and also both belong to the same sub-system (fpga-bridge).So using same driver for both IP's. Signed-off-by: Nava kishore Manne <[email protected]> Reviewed-by: Tom Rix <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2021-03-24fpga: xilinx-pr-decoupler: Simplify code by using dev_err_probe()Michal Simek1-5/+3
Use already prepared dev_err_probe() introduced by commit a787e5400a1c ("driver core: add device probe log helper"). It simplifies EPROBE_DEFER handling. Signed-off-by: Michal Simek <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-01-10fpga: xilinx-pr-decoupler: Remove clk_get error message for probe deferShubhrajyoti Datta1-1/+2
In probe, the driver checks for devm_clk_get return and print error message in the failing case. However for -EPROBE_DEFER this message is confusing so avoid it. Signed-off-by: Shubhrajyoti Datta <[email protected]> Signed-off-by: Michal Simek <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285Thomas Gleixner1-9/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 100 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Alexios Zavras <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2018-10-16fpga: bridge: add devm_fpga_bridge_createAlan Tull1-2/+2
Add devm_fpga_bridge_create() which is the managed version of fpga_bridge_create(). Change current bridge drivers to use devm_fpga_bridge_create(). Signed-off-by: Alan Tull <[email protected]> Suggested-by: Federico Vaga <[email protected]> Acked-by: Moritz Fischer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2018-05-25fpga: bridge: change api, don't use drvdataAlan Tull1-5/+17
Change fpga_bridge_register to not set drvdata. This is to support the case where a PCIe device can have more than one bridge. Add API functions to create/free the fpga bridge struct. Change fpga_bridge_register/unregister to take FPGA bridge struct as the only parameter. struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name, const struct fpga_bridge_ops *br_ops, void *priv); void fpga_bridge_free(struct fpga_bridge *br); int fpga_bridge_register(struct fpga_bridge *br); void fpga_bridge_unregister(struct fpga_bridge *br); Update the drivers that call fpga_bridge_register with the new API. Signed-off-by: Alan Tull <[email protected]> Reported-by: Jiuyue Ma <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2017-10-04fpga: make xlnx_pr_decoupler_br_ops constBhumika Goyal1-1/+1
Make this const as it is only passed to a const argument of the function fpga_bridge_register. Signed-off-by: Bhumika Goyal <[email protected]> Acked-by: Michal Simek <[email protected]> Acked-by: Moritz Fischer <[email protected]> Signed-off-by: Alan Tull <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2017-04-08fpga: Add support for Xilinx LogiCORE PR DecouplerMoritz Fischer1-0/+161
This adds support for the Xilinx LogiCORE PR Decoupler soft-ip that does decoupling of PR regions in the FPGA fabric during partial reconfiguration. Signed-off-by: Moritz Fischer <[email protected]> Signed-off-by: Michal Simek <[email protected]> Cc: Sören Brinkmann <[email protected]> Cc: [email protected] Cc: [email protected] Acked-by: Alan Tull <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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