summaryrefslogtreecommitdiffstats
path: root/drivers/fpga/altera-ps-spi.c (follow)
Commit message (Collapse)AuthorAgeFilesLines
* fpga: altera: drop driver owner assignmentKrzysztof Kozlowski2024-04-011-1/+0
| | | | | | | | | | Core in spi_register_driver() already sets the .owner, so driver does not need to. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/20240327174909.519796-1-krzysztof.kozlowski@linaro.org Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
* fpga: altera-ps-spi: Use spi_get_device_match_data()Rob Herring2023-10-161-40/+6
| | | | | | | | | | | | | | | Use preferred spi_get_device_match_data() instead of of_match_device() and spi_get_device_id() to get the driver match data. With this, adjust the includes to explicitly include the correct headers. Also drop of_match_ptr for of_ef_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/20231006224624.444857-1-robh@kernel.org [yilun.xu@intel.com: drop of_match_ptr for of_ef_match] Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
* fpga: mgr: Use standard dev_release for class driverRuss Weight2021-11-281-6/+3
| | | | | | | | | | | | | | | | | | | | | | The FPGA manager 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 for the freeing of the class data structure and combines the create() and register() functions into a single register() or register_full() function. The register_full() function accepts an info data structure to provide flexibility in passing optional parameters. The register() function supports the current parameter list for users that don't require the use of optional parameters. The devm_fpga_mgr_register() function is retained, and the devm_fpga_mgr_register_full() function is added. 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: fpga-mgr: altera-ps-spi: Simplify registrationMoritz Fischer2020-12-011-13/+1
| | | | | | | | | Simplify registration by using new devm_fpga_mgr_register() API. Reviewed-by: Tom Rix <trix@redhat.com> Signed-off-by: Moritz Fischer <mdf@kernel.org> Link: https://lore.kernel.org/r/20201115195127.284487-3-mdf@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: altera-ps-spi: Fix getting of optional confd gpioPhil Reid2019-08-191-4/+7
| | | | | | | | | | Currently the driver does not handle EPROBE_DEFER for the confd gpio. Use devm_gpiod_get_optional() instead of devm_gpiod_get() and return error codes from altera_ps_probe(). Fixes: 5692fae0742d ("fpga manager: Add altera-ps-spi driver for Altera FPGAs") Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Moritz Fischer <mdf@kernel.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422Thomas Gleixner2019-06-051-4/+1
| | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 101 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: mgr: altera-ps-spi: make array dummy static, shrinks object sizeColin Ian King2019-01-311-1/+1
| | | | | | | | | | | | | | | | | | | | Don't populate the const array dummy on the stack but instead make it static. Makes the object code smaller by 26 bytes: Before: text data bss dec hex filename 7371 2032 0 9403 24bb drivers/fpga/altera-ps-spi.o After: text data bss dec hex filename 7281 2096 0 9377 24a1 drivers/fpga/altera-ps-spi.o (gcc version 8.2.0 x86_64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: mgr: altera-ps-spi: enable usage on non-dt platformsAnatolij Gustschin2018-11-261-5/+35
| | | | | | | | | | | | | | Driver probing fails on non-dt platforms since of_match_device() always returns NULL here. Add spi ids with device names and matching driver data as an index of a map array with data for supported devices. Add this map array and a function for mapping spi ids to driver data. This allows driver binding to dynamically added PS-SPI devices (e.g. when added via spi_new_device() after hot-plugging). Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: mgr: add devm_fpga_mgr_createAlan Tull2018-10-161-8/+3
| | | | | | | | | | | | | Add devm_fpga_mgr_create() which is the managed version of fpga_mgr_create(). Change current FPGA manager drivers to use devm_fpga_mgr_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: manager: change api, don't use drvdataAlan Tull2018-05-251-3/+17
| | | | | | | | | | | | | | | | | | | | | | | | | Change fpga_mgr_register to not set or use drvdata. This supports the case where a PCIe device has more than one manager. Add fpga_mgr_create/free functions. Change fpga_mgr_register and fpga_mgr_unregister functions to take the mgr struct as their only parameter. struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name, const struct fpga_manager_ops *mops, void *priv); void fpga_mgr_free(struct fpga_manager *mgr); int fpga_mgr_register(struct fpga_manager *mgr); void fpga_mgr_unregister(struct fpga_manager *mgr); Update the drivers that call fpga_mgr_register with the new API. Signed-off-by: Alan Tull <atull@kernel.org> [Moritz: Fixup whitespace issue] 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-manager: altera-ps-spi: preserve nCONFIG stateAnatolij Gustschin2018-04-231-1/+1
| | | | | | | | | | | | | If the driver module is loaded when FPGA is configured, the FPGA is reset because nconfig is pulled low (low-active gpio inited with GPIOD_OUT_HIGH activates the signal which means setting its value to low). Init nconfig with GPIOD_OUT_LOW to prevent this. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Alan Tull <atull@kernel.org> Signed-off-by: Moritz Fischer <mdf@kernel.org> Cc: stable <stable@vger.kernel.org> # 4.14+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga-manager: altera-ps-spi: use bitrev8x4Joshua Clayton2017-07-171-4/+15
| | | | | | | | | Speed up bit reversal by using hardware bit reversal Add extra code to handle less than 4byte remnants, if any Signed-off-by: Joshua Clayton <stillcompiling@gmail.com> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga manager: Add altera-ps-spi driver for Altera FPGAsJoshua Clayton2017-07-171-0/+297
altera-ps-spi loads FPGA firmware over SPI, using the "passive serial" interface on Altera Arria 10, Cyclone V or Stratix V FPGAs. This is one of the simpler ways to set up an FPGA at runtime. The signal interface is close to unidirectional SPI with lsb first. Signed-off-by: Joshua Clayton <stillcompiling@gmail.com> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 12:32:33 +0100