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* fpga: bridge: Use standard dev_release for class driverRuss Weight2021-11-281-5/+5
| | | | | | | | | | | | | 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: altera-freeze-bridge: Address warning about unused variableMoritz Fischer2021-07-251-0/+2
| | | | | | | | | | | warning: unused variable 'altera_freeze_br_of_match' [-Wunused-const-variable] static const struct of_device_id altera_freeze_br_of_match[] = { Fixes: ca24a648f535 ("fpga: add altera freeze bridge support") Cc: Tom Rix <trix@redhat.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Moritz Fischer <mdf@kernel.org>
* fpga: bridge: add devm_fpga_bridge_createAlan Tull2018-10-161-10/+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>
* fpga: use SPDXAlan Tull2018-05-251-12/+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>
* fpga: bridge: change api, don't use drvdataAlan Tull2018-05-251-3/+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>
* fpga fr br: update supported version numbersMatthew Gerlach2017-04-261-11/+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>
* fpga: altera_freeze_bridge: Constify opsMoritz Fischer2017-04-081-1/+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>
* fpga: add altera freeze bridge supportAlan Tull2016-11-101-0/+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>