We have helper routines to lookup devices matching a criteria defined by a "match" helper for bus/class/driver. Often the search is based on a generic property of a device, such as of_node, fwnode, device type or device name. In the absense of a common set of match functions, we have drivers writing their own match functions, spilled all over the driver subsystems. This series is an attempt to consolidate the and cleanup the device match functions by providing generic match helpers by device properties listed above. In this attempt, we unify the prototype for the match functions for {bus/driver}_find_device() with that of the class_find_device() and thus further reducing the duplicate functions. The series also adds wrapper functions to lookup the devices by generic attributes, so that people don't miss the generic match functions and continue to write their own.

Also, there are a couple of instances where the drivers use "platform_bus_type" directly reusing the "match" function of the bus. This is cleaned by providing a new helper "platform_find_device_by_driver()" to abstract the details away from the callers.

Applies on 5.2-rc3

Cc: Alan Tull atull@kernel.org Cc: Alessandro Zummo a.zummo@towertech.it Cc: Alexander Aring alex.aring@gmail.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Alexandre Belloni alexandre.belloni@bootlin.com Cc: Andreas Noever andreas.noever@gmail.com Cc: Andrew Lunn andrew@lunn.ch Cc: Arnd Bergmann arnd@arndb.de Cc: Bjorn Helgaas bhelgaas@google.com Cc: Corey Minyard minyard@acm.org Cc: Daniel Vetter daniel@ffwll.ch Cc: Dan Murphy dmurphy@ti.com Cc: David Airlie airlied@linux.ie Cc: David Kershner david.kershner@unisys.com Cc: "David S. Miller" davem@davemloft.net Cc: Doug Ledford dledford@redhat.com Cc: dri-devel@lists.freedesktop.org Cc: Elie Morisse syniurge@gmail.com Cc: Eric Anholt eric@anholt.net Cc: Felipe Balbi balbi@kernel.org Cc: Florian Fainelli f.fainelli@gmail.com Cc: Frank Rowand frowand.list@gmail.com Cc: Grant Likely grant.likely@arm.com Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Grygorii Strashko grygorii.strashko@ti.com Cc: Harald Freudenberger freude@linux.ibm.com Cc: Hartmut Knaack knaack.h@gmx.de Cc: Heikki Krogerus heikki.krogerus@linux.intel.com Cc: Heiko Carstens heiko.carstens@de.ibm.com Cc: "Heiko Stübner" heiko@sntech.de Cc: Heiko Stuebner heiko@sntech.de Cc: Heiner Kallweit hkallweit1@gmail.com Cc: Inki Dae inki.dae@samsung.com Cc: Jacek Anaszewski jacek.anaszewski@gmail.com Cc: "James E.J. Bottomley" jejb@linux.ibm.com Cc: Jason Gunthorpe jgg@ziepe.ca Cc: Jiri Slaby jslaby@suse.com Cc: Joe Perches joe@perches.com Cc: Joerg Roedel joro@8bytes.org Cc: Jonathan Cameron jic23@kernel.org Cc: Jonathan Hunter jonathanh@nvidia.com Cc: Lee Jones lee.jones@linaro.org Cc: Len Brown <lenb@kernel.org Cc: Liam Girdwood lgirdwood@gmail.com Cc: Maarten Lankhorst maarten.lankhorst@linux.intel.com Cc: Mark Brown broonie@kernel.org Cc: "Martin K. Petersen" martin.petersen@oracle.com Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Maxime Coquelin mcoquelin.stm32@gmail.com Cc: Maxime Ripard maxime.ripard@bootlin.com Cc: Michael Jamet michael.jamet@intel.com Cc: Mika Westerberg mika.westerberg@linux.intel.com Cc: Moritz Fischer mdf@kernel.org Cc: Nehal Shah nehal-bakulchandra.shah@amd.com Cc: Oliver Neukum oneukum@suse.com Cc: Pavel Machek pavel@ucw.cz Cc: Peter Oberparleiter oberpar@linux.ibm.com Cc: Peter Rosin peda@axentia.se Cc: "Rafael J. Wysocki" rafael.j.wysocki@intel.com Cc: "Rafael J. Wysocki" rafael@kernel.org Cc: Rafael J. Wysocki" rjw@rjwysocki.net Cc: Rob Herring robh+dt@kernel.org Cc: Robin Murphy robin.murphy@arm.com Cc: Russell King linux@armlinux.org.uk Cc: Sandy Huang hjc@rock-chips.com Cc: Sebastian Andrzej Siewior bigeasy@linutronix.de Cc: Sebastian Ott sebott@linux.ibm.com Cc: Seung-Woo Kim sw0312.kim@samsung.com Cc: Shyam Sundar S K shyam-sundar.s-k@amd.com Cc: Srinivas Kandagatla srinivas.kandagatla@linaro.org Cc: Stefan Schmidt stefan@datenfreihafen.org Cc: Takashi Iwai tiwai@suse.com Cc: Thierry Reding thierry.reding@gmail.com Cc: Thor Thayer thor.thayer@linux.intel.com Cc: Tomas Winkler tomas.winkler@intel.com Cc: Ulf Hansson ulf.hansson@linaro.org Cc: Will Deacon will.deacon@arm.com Cc: Wolfram Sang wsa@the-dreams.de Cc: devicetree@vger.kernel.org Cc: linux-acpi@vger.kernel.org Cc: linux-fpga@vger.kernel.org Cc: linux-i2c@vger.kernel.org Cc: linux-leds@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-rtc@vger.kernel.org Cc: linux-spi@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: linux-wpan@vger.kernel.org

Suzuki K Poulose (57): drivers: s390/cio: Use driver_for_each_device drivers: ipmi: Drop device reference drivers: coresight: Drop device references found via bus_find_device drivers: Add generic match helper to match the device of_node drm: mipi_dsi: Use bus_find_device_by_of_node() helper drivers: i2c: i2c-core: Use bus_find_device_by_of_node helper drivers: nvmem: Use bus_find_device_by_of_node helper drivers: spi: Use bus_find_device_by_of_node helper drivers: sound: rockchip: rk3399: Use bus_find_device_by_of_node helper drivers: coresight: Use bus_find_device_by_of_node helper of: mdio: Use bus_find_device_by_of_node helper of: platform: Use bus_find_device_by_of_node helper drivers: Add generic helper for matching device by fwnode drivers: devcon: Use bus_find_device_by_fwnode helper net: hisilicon: hnfs:Use bus_find_device_by_fwnode helper net: hns_roce: Use bus_find_device_by_fwnode helper drivers: Add generic match by device type helper drivers: intel_th: Use bus_find_device_by_devt helper drivers: usb: core: Use bus_find_device_by_devt helper platform: Add a helper to find device by driver drivers: Add generic match helper by ACPI_COMPANION device drivers: i2c: Use generic helper to match device by acpi_dev drivers: spi: Use bus_find_device_by_acpi_dev match helper drivers: staging: most-core: Use bus_find_device_by_name drivers: Add generic match by name helper drivers: acpi: Clean up acpi_dev_match_cb drivers: Unify the match prototype for bus_find_device with class_find_device drivers: class: Add variants of class_find_device() drivers: stm: Use class_find_device_by_name() helper drivers: leds: Use class_find_device_by_name() helper drivers: rtc: Use class_find_device_by_name() helper drivers: s390-crypto: Use class_device_find_by_name() helper drivers: usb: Use class_find_device_by_name() helper drivers: ieee802154: Use class_find_device_by_name() helper drivers: core: Reuse generic match by device type helper drivers: mei: Use class_find_device_by_devt match helper drivers: s390: zcrypt: Use class_find_device_by_devt helper drivers: fpga: Use generic helpers to match by of_node drivers: mux: Use class_find_device_by_of_node helper drivers: spi: Use class_find_device_by_of_node helper drivers: net: phy: Use class_find_device_by_of_node helper drivers: regulator: Use class_find_device_by_of_node helper drivers: tty : Use class_find_device_by_of_node helper drivers: usb : Use class_find_device_by_fwnode() helper drivers: driver_find_device: Unify the match function driver: Add variants of driver_find_device() drivers: mfd: Use driver_find_device_by_name helper drivers: s390: cio: Use driver_find_by_name() helper drivers: mfd: altera: Use driver_find_device_by_of_node() helper drivers: iommu: arm-smmu: Use driver_find_device_by_fwnode() helper drivers: Add generic helper to match all devices drivers: tegra: Use driver_find_device_by_of_node() helper drivers: Introduce bus_find_next_device() helper drivers: pci: Use bus_find_next_device() helper drivers: scsi: Use bus_find_next_device() helper drivers: Introduce driver_find_next_device() helper drivers: i2c-amd: Use driver_find_next_device() helper

arch/powerpc/platforms/pseries/ibmebus.c | 4 +- drivers/acpi/acpi_lpss.c | 4 +- drivers/acpi/sleep.c | 2 +- drivers/acpi/utils.c | 11 +- drivers/amba/tegra-ahb.c | 11 +- drivers/base/bus.c | 26 +-- drivers/base/core.c | 45 ++++- drivers/base/devcon.c | 8 +- drivers/base/driver.c | 2 +- drivers/base/platform.c | 14 ++ drivers/char/ipmi/ipmi_msghandler.c | 8 +- drivers/char/ipmi/ipmi_si_platform.c | 3 +- drivers/firmware/efi/dev-path-parser.c | 4 +- drivers/fpga/fpga-bridge.c | 8 +- drivers/fpga/fpga-mgr.c | 8 +- drivers/fpga/of-fpga-region.c | 7 +- drivers/gpu/drm/drm_mipi_dsi.c | 7 +- drivers/gpu/drm/exynos/exynos_drm_drv.c | 9 +- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 3 +- drivers/gpu/drm/tegra/dc.c | 4 +- drivers/gpu/drm/vc4/vc4_drv.c | 3 +- drivers/hwtracing/coresight/coresight.c | 10 +- drivers/hwtracing/coresight/of_coresight.c | 11 +- drivers/hwtracing/intel_th/core.c | 11 +- drivers/hwtracing/stm/core.c | 9 +- drivers/i2c/busses/i2c-amd-mp2-pci.c | 8 +- drivers/i2c/i2c-core-acpi.c | 10 +- drivers/i2c/i2c-core-of.c | 9 +- drivers/iio/inkern.c | 2 +- drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 8 +- drivers/iommu/arm-smmu-v3.c | 9 +- drivers/iommu/arm-smmu.c | 9 +- drivers/leds/led-class.c | 9 +- drivers/mfd/altera-sysmgr.c | 14 +- drivers/mfd/syscon.c | 8 +- drivers/misc/mei/main.c | 9 +- drivers/mux/core.c | 8 +- drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 8 +- drivers/net/ethernet/ti/cpsw-phy-sel.c | 4 +- drivers/net/ethernet/ti/davinci_emac.c | 2 +- drivers/net/ethernet/toshiba/tc35815.c | 4 +- drivers/net/phy/mdio_bus.c | 9 +- drivers/nvmem/core.c | 7 +- drivers/of/of_mdio.c | 8 +- drivers/of/platform.c | 7 +- drivers/pci/probe.c | 7 +- drivers/pci/search.c | 4 +- drivers/regulator/of_regulator.c | 7 +- drivers/rtc/interface.c | 11 +- drivers/s390/cio/ccwgroup.c | 28 +-- drivers/s390/cio/chsc_sch.c | 2 +- drivers/s390/cio/css.c | 4 +- drivers/s390/cio/device.c | 21 +-- drivers/s390/crypto/ap_bus.c | 4 +- drivers/s390/crypto/zcrypt_api.c | 23 +-- drivers/scsi/scsi_proc.c | 9 +- drivers/spi/spi.c | 28 +-- drivers/staging/most/core.c | 9 +- drivers/thunderbolt/switch.c | 4 +- drivers/tty/tty_io.c | 8 +- drivers/usb/core/devio.c | 8 +- drivers/usb/core/usb.c | 4 +- drivers/usb/phy/phy-am335x-control.c | 4 +- drivers/usb/phy/phy-isp1301.c | 4 +- drivers/usb/roles/class.c | 16 +- drivers/usb/typec/class.c | 16 +- drivers/visorbus/visorbus_main.c | 4 +- include/linux/device.h | 191 ++++++++++++++++++++- include/linux/platform_device.h | 3 + net/ieee802154/core.c | 7 +- sound/soc/rockchip/rk3399_gru_sound.c | 9 +- 71 files changed, 359 insertions(+), 460 deletions(-)