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path: root/drivers/fpga/of-fpga-region.c (follow)
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2019-06-24drivers: Add generic helper to match by of_nodeSuzuki K Poulose1-6/+1
Add a helper to match device by the of_node. This will be later used to provide wrappers to the device iterators for {bus/class/driver}_find_device(). Convert other users to reuse this new helper. Cc: Alan Tull <atull@kernel.org> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: "David S. Miller" <davem@davemloft.net> Cc: devicetree@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Heiner Kallweit <hkallweit1@gmail.com> Cc: Jiri Slaby <jslaby@suse.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: linux-fpga@vger.kernel.org Cc: linux-i2c@vger.kernel.org Cc: linux-spi@vger.kernel.org Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Mark Brown <broonie@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Moritz Fischer <mdf@kernel.org> Cc: Peter Rosin <peda@axentia.se> Cc: Rob Herring <robh+dt@kernel.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Thor Thayer <thor.thayer@linux.intel.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Joe Perches <joe@perches.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-26fpga: of-fpga-region: Use platform_set_drvdataMoritz Fischer1-1/+1
Use platform_set_drvdata rather than dev_set_drvdata to match the platform_get_drvdata in the _remove() function of the platform driver. Signed-off-by: Moritz Fischer <mdf@kernel.org> Acked-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-16fpga: add devm_fpga_region_createAlan Tull1-4/+2
Add devm_fpga_region_create() which is the managed version of fpga_region_create(). Change current region drivers to use devm_fpga_region_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>
2018-09-30fpga: do not access region struct after fpga_region_unregisterAlan Tull1-1/+2
A couple drivers were accessing the region struct after it had been freed. Save off the pointer to the mgr before the region struct gets freed. Signed-off-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-25fpga: use SPDXAlan Tull1-13/+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: region: change api, add fpga_region_create/freeAlan Tull1-8/+5
Add fpga_region_create/free API functions. Change fpga_region_register to take FPGA region struct as the only parameter. Change fpga_region_unregister to return void. struct fpga_region *fpga_region_create(struct device *dev, struct fpga_manager *mgr, int (*get_bridges)(struct fpga_region *)); void fpga_region_free(struct fpga_region *region); int fpga_region_register(struct fpga_region *region); void fpga_region_unregister(struct fpga_region *region); Remove groups storage from struct fpga_region, it's not needed. Callers can just "region->dev.groups = groups;" after calling fpga_region_create. Update the drivers that call fpga_region_register with the new API. Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-25fpga: region: don't use drvdata in common fpga codeAlan Tull1-0/+1
Changes to fpga_region_register function to not set drvdata. Setting drvdata is fine for DT based devices that will have one region per platform device. However PCIe based devices may have multiple FPGA regions under one PCIe device. Without these changes, the PCIe solution has to create an extra device for each child region to hold drvdata. 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>
2017-11-28fpga: region: release of_parse_phandle nodes after useIan Abbott1-3/+10
Both fpga_region_get_manager() and fpga_region_get_bridges() call of_parse_phandle(), but nothing calls of_node_put() on the returned struct device_node pointers. Make sure to do that to stop their reference counters getting out of whack. Fixes: 0fa20cdfcc1f ("fpga: fpga-region: device tree control for FPGA") Cc: <stable@vger.kernel.org> # 4.10+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-28fpga: of-fpga-region: accept overlays that don't program FPGAAlan Tull1-5/+6
The FPGA may already have a static image programmed when Linux boots. In that case a DT overlay may be used to add the devices that already exist. This commit allows that by shuffling the order of some checks. Signed-off-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-28fpga: region: move device tree support to of-fpga-region.cAlan Tull1-0/+496
Create of-fpga-region.c and move the following functions without modification from fpga-region.c. * of_fpga_region_find * of_fpga_region_get_mgr * of_fpga_region_get_bridges * child_regions_with_firmware * of_fpga_region_parse_ov * of_fpga_region_notify_pre_apply * of_fpga_region_notify_post_remove * of_fpga_region_notify * of_fpga_region_probe * of_fpga_region_remove Create two new functions with some code from fpga_region_init/exit. * of_fpga_region_init * of_fpga_region_exit Signed-off-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>