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path: root/drivers/fpga/xilinx-pr-decoupler.c
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* fpga: Use device_get_match_data()Rob Herring2023-10-131-12/+5
| | | | | | | | | | | | | | | | Use preferred device_get_match_data() instead of of_match_device() to get the driver match data. With this, adjust the includes to explicitly include the correct headers. Also drop of_match_ptr for xlnx_pr_decoupler_of_match, which is not necessary because DT is always used for this driver. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/20231006224633.445035-1-robh@kernel.org [yilun.xu@intel.com: merge the fix 20231012192149.1546368-1-robh@kernel.org] Link: https://lore.kernel.org/r/20231012192149.1546368-1-robh@kernel.org Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
* fpga: xilinx-pr-decoupler: Convert to devm_platform_ioremap_resource()Yangtao Li2023-07-101-3/+1
| | | | | | | | | | Use devm_platform_ioremap_resource() to simplify code. Signed-off-by: Yangtao Li <frank.li@vivo.com> Acked-by: Michal Simek <michal.simek@amd.com> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/20230705094655.44753-5-frank.li@vivo.com Signed-off-by: Xu Yilun <yilun.xu@intel.com>
* fpga: xilinx-pr-decoupler: Use readl wrapper instead of pure readlMichal Simek2023-03-251-1/+1
| | | | | | | | | | | | Driver has IO wrappers but xlnx_pr_decouple_read() is not used and readl is used instead which is just wrong. It is also generating sparse issue that xlnx_pr_decouple_read() is unused. Signed-off-by: Michal Simek <michal.simek@amd.com> Reviewed-by: Tom Rix <trix@redhat.com> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/0381e4e8061c2fee182a104768e84feff3a82d25.1679412800.git.michal.simek@amd.com Signed-off-by: Xu Yilun <yilun.xu@intel.com>
* fpga: bridge: Use standard dev_release for class driverRuss Weight2021-11-281-11/+6
| | | | | | | | | | | | | The FPGA bridge class driver data structure is being treated as a managed resource instead of using the standard dev_release call-back function to release the class data structure. This change removes the managed resource code and combines the create() and register() functions into a single register() function. Signed-off-by: Russ Weight <russell.h.weight@intel.com> Reviewed-by: Xu Yilun <yilun.xu@intel.com> Acked-by: Xu Yilun <yilun.xu@intel.com> Signed-off-by: Moritz Fischer <mdf@kernel.org>
* fpga: xilinx-pr-decoupler: Address warning about unused variableMoritz Fischer2021-07-241-0/+2
| | | | | | | | | | warning: ‘xlnx_pr_decoupler_of_match’ defined but not used [-Wunused-const-variable=] static const struct of_device_id xlnx_pr_decoupler_of_match[] = { Fixes: 7e961c12be42 ("fpga: Add support for Xilinx LogiCORE PR Decoupler") Cc: Tom Rix <trix@redhat.com> Signed-off-by: Moritz Fischer <mdf@kernel.org>
* fpga: Add support for Xilinx DFX AXI Shutdown managerNava kishore Manne2021-03-241-5/+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 <nava.manne@xilinx.com> Reviewed-by: Tom Rix <trix@redhat.com> Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: xilinx-pr-decoupler: Simplify code by using dev_err_probe()Michal Simek2021-03-241-5/+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 <michal.simek@xilinx.com> Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: xilinx-pr-decoupler: Remove clk_get error message for probe deferShubhrajyoti Datta2020-01-101-1/+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 <shubhrajyoti.datta@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Moritz Fischer <mdf@kernel.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285Thomas Gleixner2019-06-051-9/+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 <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.918357685@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: bridge: add devm_fpga_bridge_createAlan Tull2018-10-161-2/+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 <atull@kernel.org> Suggested-by: Federico Vaga <federico.vaga@cern.ch> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: bridge: change api, don't use drvdataAlan Tull2018-05-251-5/+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 <atull@kernel.org> Reported-by: Jiuyue Ma <majiuyue@huawei.com> Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: make xlnx_pr_decoupler_br_ops constBhumika Goyal2017-10-041-1/+1
| | | | | | | | | | | Make this const as it is only passed to a const argument of the function fpga_bridge_register. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: Add support for Xilinx LogiCORE PR DecouplerMoritz Fischer2017-04-081-0/+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 <mdf@kernel.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Cc: Sören Brinkmann <soren.brinkmann@xilinx.com> Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Acked-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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