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path: root/drivers/fpga/altera-freeze-bridge.c
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2018-10-16fpga: bridge: add devm_fpga_bridge_createAlan Tull1-10/+3
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>
2018-05-25fpga: use SPDXAlan Tull1-12/+1
Replace GPLv2 boilerplate with SPDX in FPGA code that came from me or from Altera. Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-25fpga: bridge: change api, don't use drvdataAlan Tull1-3/+19
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>
2017-04-26fpga fr br: update supported version numbersMatthew Gerlach1-11/+19
The value in the version register of the altera freeze bridge controller changed from the beta value of 2 to the value of 0xad000003 in the official release of the IP. This patch supports the old and new version numbers, and the driver's probe function will fail if neither of the supported versions is found. Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Reviewed-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08fpga: altera_freeze_bridge: Constify opsMoritz Fischer1-1/+1
The ops are not changing, make them const. Signed-off-by: Moritz Fischer <mdf@kernel.org> Cc: Alan Tull <atull@kernel.org> Cc: linux-kernel@vger.kernel.org Cc: linux-fpga@vger.kernel.org Acked-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-10fpga: add altera freeze bridge supportAlan Tull1-0/+273
Add a low level driver for Altera Freeze Bridges to the FPGA Bridge framework. A freeze bridge is a bridge that exists in the FPGA fabric to isolate one region of the FPGA from the busses while that one region is being reprogrammed. Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Matthew Gerlach <mgerlach@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>