S: Maintained
F: drivers/gpio/gpio-104-idio-16.c
-ACCES 104-QUAD-8 IIO DRIVER
+ACCES 104-QUAD-8 DRIVER
S: Maintained
+F: Documentation/ABI/testing/sysfs-bus-counter-104-quad-8
F: Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8
-F: drivers/iio/counter/104-quad-8.c
+F: drivers/counter/104-quad-8.c
ACCES PCI-IDIO-16 GPIO DRIVER
S: Maintained
-F: Documentation/hwmon/adm1025
+F: Documentation/hwmon/adm1025.rst
F: drivers/hwmon/adm1025.c
ADM1029 HARDWARE MONITOR DRIVER
S: Maintained
-F: Documentation/hwmon/ads1015
+F: Documentation/hwmon/ads1015.rst
F: drivers/hwmon/ads1015.c
F: include/linux/platform_data/ads1015.h
S: Maintained
-F: Documentation/hwmon/adt7475
+F: Documentation/hwmon/adt7475.rst
F: drivers/hwmon/adt7475.c
ADVANSYS SCSI DRIVER
S: Maintained
F: drivers/gpio/gpio-altera.c
+ALTERA SYSTEM MANAGER DRIVER
+S: Maintained
+F: drivers/mfd/altera-sysmgr.c
+F: include/linux/mfd/altera-sysgmr.h
+
ALTERA SYSTEM RESOURCE DRIVER FOR ARRIA10 DEVKIT
S: Maintained
F: include/linux/altera_uart.h
F: include/linux/altera_jtaguart.h
++AMAZON ANNAPURNA LABS THERMAL MMIO DRIVER
++S: Maintained
++F: Documentation/devicetree/bindings/thermal/amazon,al-thermal.txt
++F: drivers/thermal/thermal_mmio.c
++
AMAZON ETHERNET DRIVERS
F: Documentation/networking/device_drivers/amazon/ena.txt
F: drivers/net/ethernet/amazon/
-AMAZON ANNAPURNA LABS THERMAL MMIO DRIVER
-S: Maintained
-F: Documentation/devicetree/bindings/thermal/amazon,al-thermal.txt
-F: drivers/thermal/thermal_mmio.c
+AMAZON RDMA EFA DRIVER
+Q: https://patchwork.kernel.org/project/linux-rdma/list/
+S: Supported
+F: drivers/infiniband/hw/efa/
+F: include/uapi/rdma/efa-abi.h
AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER
S: Supported
-F: Documentation/hwmon/fam15h_power
+F: Documentation/hwmon/fam15h_power.rst
F: drivers/hwmon/fam15h_power.c
AMD FCH GPIO DRIVER
F: drivers/gpu/drm/amd/include/v9_structs.h
F: include/uapi/linux/kfd_ioctl.h
+AMD MP2 I2C DRIVER
+S: Maintained
+F: drivers/i2c/busses/i2c-amd-mp2*
+
AMD POWERPLAY
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/iio/adc/ad7606.c
-F: Documentation/devicetree/bindings/iio/adc/ad7606.txt
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt
ANALOG DEVICES INC AD7768-1 DRIVER
ANALOG DEVICES INC IIO DRIVERS
W: http://wiki.analog.com/
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
X: drivers/iio/*/adjd*
F: drivers/staging/iio/*/ad*
+ANALOGBITS PLL LIBRARIES
+S: Supported
+F: drivers/clk/analogbits/*
+F: include/linux/clk/analogbits*
+
ANDES ARCHITECTURE
T: git git://linux-arm.org/linux-ld.git for-upstream/mali-dp
F: drivers/gpu/drm/arm/display/include/
F: drivers/gpu/drm/arm/display/komeda/
-F: Documentation/devicetree/bindings/display/arm/arm,komeda.txt
+F: Documentation/devicetree/bindings/display/arm,komeda.txt
F: Documentation/gpu/komeda-kms.rst
ARM MALI-DP DRM DRIVER
F: Documentation/devicetree/bindings/display/arm,malidp.txt
F: Documentation/gpu/afbc.rst
+ARM MALI PANFROST DRM DRIVER
+S: Supported
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: drivers/gpu/drm/panfrost/
+F: include/uapi/drm/panfrost_drm.h
+
ARM MFM AND FLOPPY DRIVERS
S: Maintained
S: Maintained
F: arch/arm64/boot/dts/bitmain/
+F: drivers/pinctrl/pinctrl-bm1880.c
F: Documentation/devicetree/bindings/arm/bitmain.yaml
+F: Documentation/devicetree/bindings/pinctrl/bitmain,bm1880-pinctrl.txt
ARM/CALXEDA HIGHBANK ARCHITECTURE
S: Maintained
-F: Documentation/hwmon/asc7621
+F: Documentation/hwmon/asc7621.rst
F: drivers/hwmon/asc7621.c
ASPEED VIDEO ENGINE DRIVER
F: include/linux/async_tx.h
AT24 EEPROM DRIVER
T: git git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git
S: Maintained
W: https://www.open-mesh.org/
+B: https://www.open-mesh.org/projects/batman-adv/issues
+C: irc://chat.freenode.net/batman
Q: https://patchwork.open-mesh.org/project/batman/list/
+T: git https://git.open-mesh.org/linux-merge.git
S: Maintained
-F: Documentation/ABI/testing/sysfs-class-net-batman-adv
-F: Documentation/ABI/testing/sysfs-class-net-mesh
+F: Documentation/ABI/obsolete/sysfs-class-net-batman-adv
+F: Documentation/ABI/obsolete/sysfs-class-net-mesh
F: Documentation/networking/batman-adv.rst
F: include/uapi/linux/batadv_packet.h
F: include/uapi/linux/batman_adv.h
BT87X AUDIO DRIVER
-T: git git://git.alsa-project.org/alsa-kernel.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
S: Maintained
F: Documentation/sound/cards/bt87x.rst
F: sound/pci/bt87x.c
C-MEDIA CMI8788 DRIVER
-T: git git://git.alsa-project.org/alsa-kernel.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
S: Maintained
F: sound/pci/oxygen/
CHINESE DOCUMENTATION
S: Maintained
F: Documentation/translations/zh_CN/
S: Supported
F: drivers/clk/clk-lochnagar.c
+F: drivers/hwmon/lochnagar-hwmon.c
F: drivers/mfd/lochnagar-i2c.c
F: drivers/pinctrl/cirrus/pinctrl-lochnagar.c
F: drivers/regulator/lochnagar-regulator.c
+F: sound/soc/codecs/lochnagar-sc.c
F: include/dt-bindings/clk/lochnagar.h
F: include/dt-bindings/pinctrl/lochnagar.h
F: include/linux/mfd/lochnagar*
F: Documentation/devicetree/bindings/mfd/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/clock/cirrus,lochnagar.txt
+F: Documentation/devicetree/bindings/hwmon/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/pinctrl/cirrus,lochnagar.txt
F: Documentation/devicetree/bindings/regulator/cirrus,lochnagar.txt
+F: Documentation/devicetree/bindings/sound/cirrus,lochnagar.txt
+F: Documentation/hwmon/lochnagar
CISCO FCOE HBA DRIVER
S: Maintained
-F: Documentation/hwmon/coretemp
+F: Documentation/hwmon/coretemp.rst
F: drivers/hwmon/coretemp.c
COSA/SRP SYNC SERIAL DRIVER
S: Maintained
F: drivers/net/wan/cosa*
+COUNTER SUBSYSTEM
+S: Maintained
+F: Documentation/ABI/testing/sysfs-bus-counter*
+F: Documentation/driver-api/generic-counter.rst
+F: drivers/counter/
+F: include/linux/counter.h
+F: include/linux/counter_enum.h
+
CPMAC ETHERNET DRIVER
F: Documentation/cpu-freq/
F: Documentation/devicetree/bindings/cpufreq/
F: drivers/cpufreq/
+F: kernel/sched/cpufreq*.c
F: include/linux/cpufreq.h
+F: include/linux/sched/cpufreq.h
F: tools/testing/selftests/cpufreq/
CPU FREQUENCY DRIVERS - ARM BIG LITTLE
F: drivers/scsi/cxgbi/cxgb3i
CXGB3 IWARP RNIC DRIVER (IW_CXGB3)
-M: Steve Wise <swise@chelsio.com>
+M: Potnuri Bharat Teja <bharat@chelsio.com>
W: http://www.openfabrics.org
S: Supported
F: include/uapi/rdma/cxgb3-abi.h
CXGB4 CRYPTO DRIVER (chcr)
-M: Harsh Jain <harsh@chelsio.com>
+M: Atul Gupta <atul.gupta@chelsio.com>
W: http://www.chelsio.com
S: Supported
F: drivers/scsi/cxgbi/cxgb4i
CXGB4 IWARP RNIC DRIVER (IW_CXGB4)
-M: Steve Wise <swise@chelsio.com>
+M: Potnuri Bharat Teja <bharat@chelsio.com>
W: http://www.openfabrics.org
S: Supported
CXL (IBM Coherent Accelerator Processor Interface CAPI) DRIVER
-M: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
+M: Andrew Donnellan <ajd@linux.ibm.com>
S: Supported
F: arch/powerpc/platforms/powernv/pci-cxl.c
F: drivers/devfreq/
F: include/linux/devfreq.h
F: Documentation/devicetree/bindings/devfreq/
+F: include/trace/events/devfreq.h
DEVICE FREQUENCY EVENT (DEVFREQ-EVENT)
W: http://www.dialog-semiconductor.com/products
S: Supported
-F: Documentation/hwmon/da90??
+F: Documentation/hwmon/da90??.rst
F: Documentation/devicetree/bindings/mfd/da90*.txt
F: Documentation/devicetree/bindings/input/da90??-onkey.txt
F: Documentation/devicetree/bindings/thermal/da90??-thermal.txt
S: Maintained
-F: Documentation/hwmon/dme1737
+F: Documentation/hwmon/dme1737.rst
F: drivers/hwmon/dme1737.c
DMI/SMBIOS SUPPORT
S: Odd Fixes
F: drivers/gpu/drm/ast/
+DRM DRIVER FOR ASPEED BMC GFX
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Supported
+F: drivers/gpu/drm/aspeed/
+F: Documentation/devicetree/bindings/gpu/aspeed-gfx.txt
+
DRM DRIVER FOR BOCHS VIRTUAL GPU
S: Maintained
F: drivers/gpu/drm/tve200/
+DRM DRIVER FOR FEIYANG FY07024DI26A30-D MIPI-DSI LCD PANELS
+S: Maintained
+F: drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
+F: Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.txt
+
DRM DRIVER FOR ILITEK ILI9225 PANELS
S: Maintained
F: drivers/gpu/drm/r128/
F: include/uapi/drm/r128_drm.h
+DRM DRIVER FOR ROCKTECH JH057N00900 PANELS
+S: Maintained
+F: drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
+F: Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.txt
+
DRM DRIVER FOR SAVAGE VIDEO CARDS
S: Orphan / Obsolete
F: drivers/gpu/drm/savage/
F: drivers/gpu/drm/udl/
T: git git://anongit.freedesktop.org/drm/drm-misc
+DRM DRIVER FOR VIRTUALBOX VIRTUAL GPU
+S: Maintained
+F: drivers/gpu/drm/vboxvideo/
+T: git git://anongit.freedesktop.org/drm/drm-misc
+
DRM DRIVER FOR VIRTUAL KERNEL MODESETTING (VKMS)
F: drivers/gpu/drm/hisilicon/
F: Documentation/devicetree/bindings/display/hisilicon/
+DRM DRIVERS FOR LIMA
+S: Maintained
+F: drivers/gpu/drm/lima/
+F: include/uapi/drm/lima_drm.h
+T: git git://anongit.freedesktop.org/drm/drm-misc
+
DRM DRIVERS FOR MEDIATEK
S: Maintained
F: drivers/edac/ghes_edac.c
+EDAC-I10NM
+S: Maintained
+F: drivers/edac/i10nm_base.c
+
EDAC-I3000
S: Orphan
S: Maintained
-F: drivers/edac/skx_edac.c
+F: drivers/edac/skx_*.c
EDAC-TI
EDIROL UA-101/UA-1000 DRIVER
-T: git git://git.alsa-project.org/alsa-kernel.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
S: Maintained
F: sound/usb/misc/ua101.c
S: Maintained
-F: Documentation/hwmon/f71805f
+F: Documentation/hwmon/f71805f.rst
F: drivers/hwmon/f71805f.c
FADDR2LINE
FIREWIRE AUDIO DRIVERS
-T: git git://git.alsa-project.org/alsa-kernel.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
S: Maintained
F: sound/firewire/
F: drivers/media/radio/radio-gemtek*
GENERIC GPIO I2C DRIVER
-M: Haavard Skinnemoen <hskinnemoen@gmail.com>
+M: Wolfram Sang <wsa+renesas@sang-engineering.com>
S: Supported
F: drivers/i2c/busses/i2c-gpio.c
F: include/linux/platform_data/i2c-gpio.h
S: Maintained
-F: Documentation/acpi/gpio-properties.txt
+F: Documentation/firmware-guide/acpi/gpio-properties.rst
F: drivers/gpio/gpiolib-acpi.c
GPIO IR Transmitter
F: drivers/net/ethernet/ibm/ibmvnic.*
IBM Power Virtual Accelerator Switchboard
-M: Sukadev Bhattiprolu
S: Supported
F: arch/powerpc/platforms/powernv/vas*
F: arch/powerpc/platforms/powernv/copy-paste.h
F: arch/powerpc/include/asm/vas.h
-F: arch/powerpc/include/uapi/asm/vas.h
IBM Power Virtual Ethernet Device Driver
F: drivers/crypto/vmx/ppc-xlate.pl
IBM Power PCI Hotplug Driver for RPA-compliant PPC64 platform
-M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
S: Supported
F: drivers/pci/hotplug/rpaphp*
IBM Power IO DLPAR Driver for RPA-compliant PPC64 platform
-M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
S: Supported
S: Maintained
-F: Documentation/hwmon/ina209
+F: Documentation/hwmon/ina209.rst
F: Documentation/devicetree/bindings/hwmon/ina2xx.txt
F: drivers/hwmon/ina209.c
S: Maintained
-F: Documentation/hwmon/ina2xx
+F: Documentation/hwmon/ina2xx.rst
F: drivers/hwmon/ina2xx.c
F: include/linux/platform_data/ina2xx.h
F: include/uapi/linux/if_infiniband.h
F: include/uapi/rdma/
F: include/rdma/
+F: include/trace/events/ib_mad.h
+F: include/trace/events/ib_umad.h
+F: samples/bpf/ibumad_kern.c
+F: samples/bpf/ibumad_user.c
INGENIC JZ4780 DMA Driver
INTERCONNECT API
S: Maintained
F: Documentation/interconnect/
F: Documentation/devicetree/bindings/interconnect/
S: Maintained
-F: Documentation/hwmon/it87
+F: Documentation/hwmon/it87.rst
F: drivers/hwmon/it87.c
IT913X MEDIA DRIVER
S: Maintained
F: drivers/hwmon/jc42.c
-F: Documentation/hwmon/jc42
+F: Documentation/hwmon/jc42.rst
JFS FILESYSTEM
JOURNALLING FLASH FILE SYSTEM V2 (JFFS2)
W: http://www.linux-mtd.infradead.org/doc/jffs2.html
-S: Maintained
+T: git git://git.infradead.org/ubifs-2.6.git
+S: Odd Fixes
F: fs/jffs2/
F: include/uapi/linux/jffs2.h
S: Maintained
-F: Documentation/hwmon/k10temp
+F: Documentation/hwmon/k10temp.rst
F: drivers/hwmon/k10temp.c
K8TEMP HARDWARE MONITORING DRIVER
S: Maintained
-F: Documentation/hwmon/k8temp
+F: Documentation/hwmon/k8temp.rst
F: drivers/hwmon/k8temp.c
KASAN
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
F: tools/memory-model/
F: Documentation/atomic_bitops.txt
F: Documentation/atomic_t.txt
S: Maintained
-F: Documentation/hwmon/lm78
+F: Documentation/hwmon/lm78.rst
F: drivers/hwmon/lm78.c
LM83 HARDWARE MONITOR DRIVER
S: Maintained
-F: Documentation/hwmon/lm83
+F: Documentation/hwmon/lm83.rst
F: drivers/hwmon/lm83.c
LM90 HARDWARE MONITOR DRIVER
S: Maintained
-F: Documentation/hwmon/lm90
+F: Documentation/hwmon/lm90.rst
F: Documentation/devicetree/bindings/hwmon/lm90.txt
F: drivers/hwmon/lm90.c
F: include/dt-bindings/thermal/lm90.h
S: Maintained
-F: Documentation/hwmon/lm95234
+F: Documentation/hwmon/lm95234.rst
F: drivers/hwmon/lm95234.c
LME2510 MEDIA DRIVER
F: include/linux/rwlock*.h
F: include/linux/mutex*.h
F: include/linux/rwsem*.h
-F: arch/*/include/asm/rwsem.h
F: include/linux/seqlock.h
F: lib/locking*.[ch]
F: kernel/locking/
S: Maintained
-F: Documentation/hwmon/ltc4261
+F: Documentation/hwmon/ltc4261.rst
F: drivers/hwmon/ltc4261.c
LTC4306 I2C MULTIPLEXER DRIVER
S: Maintained
-F: Documentation/hwmon/max16065
+F: Documentation/hwmon/max16065.rst
F: drivers/hwmon/max16065.c
MAX2175 SDR TUNER DRIVER
MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
S: Orphan
-F: Documentation/hwmon/max6650
+F: Documentation/hwmon/max6650.rst
F: drivers/hwmon/max6650.c
MAX6697 HARDWARE MONITOR DRIVER
S: Maintained
-F: Documentation/hwmon/max6697
+F: Documentation/hwmon/max6697.rst
F: Documentation/devicetree/bindings/hwmon/max6697.txt
F: drivers/hwmon/max6697.c
F: include/linux/platform_data/max6697.h
F: Documentation/devicetree/bindings/sound/max9860.txt
F: sound/soc/codecs/max9860.*
+MAXBOTIX ULTRASONIC RANGER IIO DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/iio/proximity/maxbotix,mb1232.txt
+F: drivers/iio/proximity/mb1232.c
+
+MAXIM MAX77650 PMIC MFD DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/*/*max77650.txt
+F: Documentation/devicetree/bindings/*/max77650*.txt
+F: include/linux/mfd/max77650.h
+F: drivers/mfd/max77650.c
+F: drivers/regulator/max77650-regulator.c
+F: drivers/power/supply/max77650-charger.c
+F: drivers/input/misc/max77650-onkey.c
+F: drivers/leds/leds-max77650.c
+F: drivers/gpio/gpio-max77650.c
+
MAXIM MAX77802 PMIC REGULATOR DEVICE DRIVER
F: Documentation/devicetree/bindings/media/mediatek-vcodec.txt
F: Documentation/devicetree/bindings/media/mediatek-vpu.txt
+MEDIATEK MMC/SD/SDIO DRIVER
+S: Maintained
+F: drivers/mmc/host/mtk-sd.c
+F: Documentation/devicetree/bindings/mmc/mtk-sd.txt
+
MEDIATEK MT76 WIRELESS LAN DRIVER
S: Maintained
F: drivers/net/wireless/mediatek/mt76/
F: drivers/net/ethernet/mellanox/mlx5/core/fpga/*
F: include/linux/mlx5/mlx5_ifc_fpga.h
-MELLANOX ETHERNET INNOVA IPSEC DRIVER
-S: Supported
-W: http://www.mellanox.com
-Q: http://patchwork.ozlabs.org/project/netdev/list/
-F: drivers/net/ethernet/mellanox/mlx5/core/en_ipsec/*
-F: drivers/net/ethernet/mellanox/mlx5/core/ipsec*
-
MELLANOX ETHERNET SWITCH DRIVERS
MEMORY TECHNOLOGY DEVICES (MTD)
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
-T: git git://git.infradead.org/linux-mtd.git master
-T: git git://git.infradead.org/linux-mtd.git mtd/next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next
S: Maintained
F: Documentation/devicetree/bindings/mtd/
F: drivers/mtd/
F: drivers/watchdog/menf21bmc_wdt.c
F: drivers/leds/leds-menf21bmc.c
F: drivers/hwmon/menf21bmc_hwmon.c
-F: Documentation/hwmon/menf21bmc
+F: Documentation/hwmon/menf21bmc.rst
MEN Z069 WATCHDOG DRIVER
W: http://linux-meson.com/
S: Supported
F: drivers/media/platform/meson/ao-cec.c
+F: drivers/media/platform/meson/ao-cec-g12a.c
F: Documentation/devicetree/bindings/media/meson-ao-cec.txt
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: drivers/i2c/busses/i2c-at91.c
+F: drivers/i2c/busses/i2c-at91.h
+F: drivers/i2c/busses/i2c-at91-*.c
MICROCHIP ISC DRIVER
MMU GATHER AND TLB INVALIDATION
-M: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD
S: Maintained
-F: Documentation/serial/moxa-smartio
+F: Documentation/serial/moxa-smartio.rst
F: drivers/tty/mxser.*
MR800 AVERMEDIA USB FM RADIO DRIVER
F: drivers/net/ethernet/myricom/myri10ge/
NAND FLASH SUBSYSTEM
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
-T: git git://git.infradead.org/linux-mtd.git nand/fixes
-T: git git://git.infradead.org/linux-mtd.git nand/next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next
S: Maintained
F: drivers/mtd/nand/
F: include/linux/mtd/*nand*.h
S: Maintained
-F: Documentation/hwmon/nct6775
+F: Documentation/hwmon/nct6775.rst
F: drivers/hwmon/nct6775.c
NET_FAILOVER MODULE
F: Documentation/blockdev/nbd.txt
F: drivers/block/nbd.c
+F: include/trace/events/nbd.h
F: include/uapi/linux/nbd.h
NETWORK DROP MONITOR
F: include/linux/nvmem-consumer.h
F: include/linux/nvmem-provider.h
+NXP FXAS21002C DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/iio/gyroscope/fxas21002c.txt
+F: drivers/iio/gyro/fxas21002c_core.c
+F: drivers/iio/gyro/fxas21002c.h
+F: drivers/iio/gyro/fxas21002c_i2c.c
+F: drivers/iio/gyro/fxas21002c_spi.c
+
NXP SGTL5000 DRIVER
F: Documentation/devicetree/bindings/sound/sgtl5000.txt
F: sound/soc/codecs/sgtl5000*
+NXP SJA1105 ETHERNET SWITCH DRIVER
+S: Maintained
+F: drivers/net/dsa/sja1105
+
NXP TDA998X DRM DRIVER
S: Maintained
OCXL (Open Coherent Accelerator Processor Interface OpenCAPI) DRIVER
-M: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
+M: Andrew Donnellan <ajd@linux.ibm.com>
S: Supported
F: arch/powerpc/platforms/powernv/ocxl.c
OPL4 DRIVER
-T: git git://git.alsa-project.org/alsa-kernel.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
S: Maintained
F: sound/drivers/opl4/
ORACLE CLUSTER FILESYSTEM 2 (OCFS2)
W: http://ocfs2.wiki.kernel.org
S: Supported
S: Orphan
F: drivers/i2c/busses/i2c-pasemi.c
+PACKING
+S: Supported
+F: lib/packing.c
+F: include/linux/packing.h
+F: Documentation/packing.txt
+
PADATA PARALLEL EXECUTION MECHANISM
S: Maintained
-F: Documentation/hwmon/pc87360
+F: Documentation/hwmon/pc87360.rst
F: drivers/hwmon/pc87360.c
PC8736x GPIO DRIVER
S: Maintained
-F: Documentation/hwmon/pc87427
+F: Documentation/hwmon/pc87427.rst
F: drivers/hwmon/pc87427.c
PCA9532 LED DRIVER
F: drivers/ntb/hw/mscc/
PCI DRIVER FOR MOBIVEIL PCIE IP
S: Supported
F: Documentation/devicetree/bindings/pci/mobiveil-pcie.txt
S: Supported
F: drivers/pci/controller/
+PCIE DRIVER FOR ANNAPURNA LABS
+S: Maintained
+F: drivers/pci/controller/dwc/pcie-al.c
+
PCIE DRIVER FOR AMLOGIC MESON
F: arch/*/include/asm/perf_event.h
F: arch/*/kernel/perf_callchain.c
F: arch/*/events/*
+F: arch/*/events/*/*
F: tools/perf/
PERSONALITY HANDLING
F: Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt
F: Documentation/devicetree/bindings/hwmon/max31785.txt
F: Documentation/devicetree/bindings/hwmon/ltc2978.txt
-F: Documentation/hwmon/adm1275
-F: Documentation/hwmon/ibm-cffps
-F: Documentation/hwmon/ir35221
-F: Documentation/hwmon/lm25066
-F: Documentation/hwmon/ltc2978
-F: Documentation/hwmon/ltc3815
-F: Documentation/hwmon/max16064
-F: Documentation/hwmon/max20751
-F: Documentation/hwmon/max31785
-F: Documentation/hwmon/max34440
-F: Documentation/hwmon/max8688
-F: Documentation/hwmon/pmbus
-F: Documentation/hwmon/pmbus-core
-F: Documentation/hwmon/tps40422
-F: Documentation/hwmon/ucd9000
-F: Documentation/hwmon/ucd9200
-F: Documentation/hwmon/zl6100
+F: Documentation/hwmon/adm1275.rst
+F: Documentation/hwmon/ibm-cffps.rst
+F: Documentation/hwmon/ir35221.rst
+F: Documentation/hwmon/lm25066.rst
+F: Documentation/hwmon/ltc2978.rst
+F: Documentation/hwmon/ltc3815.rst
+F: Documentation/hwmon/max16064.rst
+F: Documentation/hwmon/max20751.rst
+F: Documentation/hwmon/max31785.rst
+F: Documentation/hwmon/max34440.rst
+F: Documentation/hwmon/max8688.rst
+F: Documentation/hwmon/pmbus.rst
+F: Documentation/hwmon/pmbus-core.rst
+F: Documentation/hwmon/tps40422.rst
+F: Documentation/hwmon/ucd9000.rst
+F: Documentation/hwmon/ucd9200.rst
+F: Documentation/hwmon/zl6100.rst
F: drivers/hwmon/pmbus/
F: include/linux/pmbus.h
S: Maintained
-F: drivers/firmware/psci*.c
+F: drivers/firmware/psci/
F: include/linux/psci.h
F: include/uapi/linux/psci.h
S: Supported
F: Documentation/devicetree/bindings/hwmon/pwm-fan.txt
-F: Documentation/hwmon/pwm-fan
+F: Documentation/hwmon/pwm-fan.rst
F: drivers/hwmon/pwm-fan.c
PWM IR Transmitter
-L: linux-kernel@vger.kernel.org
+L: rcu@vger.kernel.org
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
F: tools/testing/selftests/rcutorture
RDC R-321X SoC
-L: linux-kernel@vger.kernel.org
+L: rcu@vger.kernel.org
W: http://www.rdrop.com/users/paulmck/RCU/
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
F: Documentation/RCU/
X: Documentation/RCU/torture.txt
F: include/linux/rcu*
P: Comtrol Corp.
W: http://www.comtrol.com
S: Maintained
-F: Documentation/serial/rocket.txt
+F: Documentation/serial/rocket.rst
F: drivers/tty/rocket*
ROCKETPORT EXPRESS/INFINITY DRIVER
S: Maintained
F: drivers/net/wireless/realtek/rtlwifi/
+REALTEK WIRELESS DRIVER (rtw88)
+S: Maintained
+F: drivers/net/wireless/realtek/rtw88/
+
RTL8XXXU WIRELESS DRIVER (rtl8xxxu)
W: https://github.com/SELinuxProject
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git
S: Supported
-F: include/linux/selinux*
+F: include/uapi/linux/selinux_netlink.h
F: security/selinux/
F: scripts/selinux/
F: Documentation/admin-guide/LSM/SELinux.rst
-L: linux-kernel@vger.kernel.org
+L: rcu@vger.kernel.org
W: http://www.rdrop.com/users/paulmck/RCU/
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
F: include/linux/srcu*.h
F: kernel/rcu/srcu*.c
S: Maintained
-F: Documentation/hwmon/smm665
+F: Documentation/hwmon/smm665.rst
F: drivers/hwmon/smm665.c
SMSC EMC2103 HARDWARE MONITOR DRIVER
S: Maintained
-F: Documentation/hwmon/emc2103
+F: Documentation/hwmon/emc2103.rst
F: drivers/hwmon/emc2103.c
SMSC SCH5627 HARDWARE MONITOR DRIVER
S: Supported
-F: Documentation/hwmon/sch5627
+F: Documentation/hwmon/sch5627.rst
F: drivers/hwmon/sch5627.c
SMSC UFX6000 and UFX7000 USB to VGA DRIVER
S: Maintained
-F: Documentation/hwmon/smsc47b397
+F: Documentation/hwmon/smsc47b397.rst
F: drivers/hwmon/smsc47b397.c
SMSC911x ETHERNET DRIVER
T: git git://linuxtv.org/media_tree.git
S: Orphan
-F: include/media/soc*
-F: drivers/media/i2c/soc_camera/
-F: drivers/media/platform/soc_camera/
+F: include/media/soc_camera.h
+F: drivers/staging/media/soc_camera/
SOCIONEXT SYNQUACER I2C DRIVER
S: Maintained
F: drivers/media/i2c/imx355.c
-SONY MEMORYSTICK CARD SUPPORT
-W: http://tifmxx.berlios.de/
-S: Maintained
-F: drivers/memstick/host/tifm_ms.c
-
-SONY MEMORYSTICK STANDARD SUPPORT
+SONY MEMORYSTICK SUBSYSTEM
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git
S: Maintained
-F: drivers/memstick/core/ms_block.*
+F: drivers/memstick/
+F: include/linux/memstick.h
SONY VAIO CONTROL DEVICE DRIVER
W: http://www.alsa-project.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
-T: git git://git.alsa-project.org/alsa-kernel.git
Q: http://patchwork.kernel.org/project/alsa-devel/list/
S: Maintained
F: Documentation/sound/
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
-T: git git://git.infradead.org/linux-mtd.git spi-nor/fixes
-T: git git://git.infradead.org/linux-mtd.git spi-nor/next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git spi-nor/next
S: Maintained
F: drivers/mtd/spi-nor/
F: include/linux/mtd/spi-nor.h
F: drivers/iio/imu/st_lsm6dsx/
F: Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
+ST MIPID02 CSI-2 TO PARALLEL BRIDGE DRIVER
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/i2c/st-mipid02.c
+F: Documentation/devicetree/bindings/media/i2c/st,st-mipid02.txt
+
ST STM32 I2C/SMBUS DRIVER
S: Supported
F: drivers/spi/spi-tegra*
+TEGRA XUSB PADCTL DRIVER
+S: Supported
+F: drivers/phy/tegra/xusb*
+
TEHUTI ETHERNET DRIVER
F: drivers/net/ethernet/ti/cpsw*
F: drivers/net/ethernet/ti/davinci*
-TI FLASH MEDIA INTERFACE DRIVER
+TI FLASH MEDIA MEMORYSTICK/MMC DRIVERS
S: Maintained
+W: http://tifmxx.berlios.de/
+F: drivers/memstick/host/tifm_ms.c
F: drivers/misc/tifm*
F: drivers/mmc/host/tifm_sd.c
F: include/linux/tifm.h
S: Maintained
-F: Documentation/hwmon/tmp401
+F: Documentation/hwmon/tmp401.rst
F: drivers/hwmon/tmp401.c
TMPFS (SHMEM FILESYSTEM)
S: Supported
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
F: Documentation/RCU/torture.txt
F: kernel/torture.c
F: kernel/rcu/rcutorture.c
F: include/linux/uwb.h
F: include/linux/uwb/
+UNICODE SUBSYSTEM:
+S: Supported
+F: fs/unicode/
+
UNICORE32 ARCHITECTURE:
W: http://mprc.pku.edu.cn/~guanxuetao/linux
S: Supported
F: drivers/scsi/ufs/*dwc*
+UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER MEDIATEK HOOKS
+S: Maintained
+F: drivers/scsi/ufs/ufs-mediatek*
+
UNSORTED BLOCK IMAGES (UBI)
S: Maintained
F: drivers/usb/roles/intel-xhci-usb-role-switch.c
+USB IP DRIVER FOR HISILICON KIRIN
+S: Maintained
+F: Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
+F: drivers/phy/hisilicon/phy-hi3660-usb3.c
+
USB ISP116X DRIVER
USB MIDI DRIVER
-T: git git://git.alsa-project.org/alsa-kernel.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
S: Maintained
F: sound/usb/midi.*
VFIO DRIVER
T: git git://github.com/awilliam/linux-vfio.git
S: Maintained
S: Maintained
-F: Documentation/hwmon/vt1211
+F: Documentation/hwmon/vt1211.rst
F: drivers/hwmon/vt1211.c
VT8231 HARDWARE MONITOR DRIVER
S: Maintained
-F: Documentation/hwmon/w83791d
+F: Documentation/hwmon/w83791d.rst
F: drivers/hwmon/w83791d.c
W83793 HARDWARE MONITORING DRIVER
S: Maintained
-F: Documentation/hwmon/w83793
+F: Documentation/hwmon/w83793.rst
F: drivers/hwmon/w83793.c
W83795 HARDWARE MONITORING DRIVER
T: git https://github.com/CirrusLogic/linux-drivers.git
W: https://github.com/CirrusLogic/linux-drivers/wiki
S: Supported
-F: Documentation/hwmon/wm83??
+F: Documentation/hwmon/wm83??.rst
F: Documentation/devicetree/bindings/extcon/extcon-arizona.txt
F: Documentation/devicetree/bindings/regulator/arizona-regulator.txt
F: Documentation/devicetree/bindings/mfd/arizona.txt
S: Maintained
-F: arch/x86/kernel/cpu/mcheck/*
+F: arch/x86/kernel/cpu/mce/*
X86 MICROCODE UPDATE SUPPORT
#define MLXREG_FAN_SPEED_MAX (MLXREG_FAN_MAX_STATE * 2)
#define MLXREG_FAN_SPEED_MIN_LEVEL 2 /* 20 percent */
#define MLXREG_FAN_TACHO_SAMPLES_PER_PULSE_DEF 44
-#define MLXREG_FAN_TACHO_DIVIDER_DEF 1132
+#define MLXREG_FAN_TACHO_DIV_MIN 283
+#define MLXREG_FAN_TACHO_DIV_DEF (MLXREG_FAN_TACHO_DIV_MIN * 4)
+#define MLXREG_FAN_TACHO_DIV_SCALE_MAX 64
/*
* FAN datasheet defines the formula for RPM calculations as RPM = 15/t-high.
* The logic in a programmable device measures the time t-high by sampling the
return 0;
}
-static const u32 mlxreg_fan_hwmon_fan_config[] = {
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- HWMON_F_INPUT | HWMON_F_FAULT,
- 0
-};
-
-static const struct hwmon_channel_info mlxreg_fan_hwmon_fan = {
- .type = hwmon_fan,
- .config = mlxreg_fan_hwmon_fan_config,
-};
-
-static const u32 mlxreg_fan_hwmon_pwm_config[] = {
- HWMON_PWM_INPUT,
- 0
-};
-
-static const struct hwmon_channel_info mlxreg_fan_hwmon_pwm = {
- .type = hwmon_pwm,
- .config = mlxreg_fan_hwmon_pwm_config,
-};
-
static const struct hwmon_channel_info *mlxreg_fan_hwmon_info[] = {
- &mlxreg_fan_hwmon_fan,
- &mlxreg_fan_hwmon_pwm,
+ HWMON_CHANNEL_INFO(fan,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_FAULT),
+ HWMON_CHANNEL_INFO(pwm,
+ HWMON_PWM_INPUT),
NULL
};
.set_cur_state = mlxreg_fan_set_cur_state,
};
+static int mlxreg_fan_connect_verify(struct mlxreg_fan *fan,
+ struct mlxreg_core_data *data)
+{
+ u32 regval;
+ int err;
+
+ err = regmap_read(fan->regmap, data->capability, ®val);
+ if (err) {
+ dev_err(fan->dev, "Failed to query capability register 0x%08x\n",
+ data->capability);
+ return err;
+ }
+
+ return !!(regval & data->bit);
+}
+
+static int mlxreg_fan_speed_divider_get(struct mlxreg_fan *fan,
+ struct mlxreg_core_data *data)
+{
+ u32 regval;
+ int err;
+
+ err = regmap_read(fan->regmap, data->capability, ®val);
+ if (err) {
+ dev_err(fan->dev, "Failed to query capability register 0x%08x\n",
+ data->capability);
+ return err;
+ }
+
+ /*
+ * Set divider value according to the capability register, in case it
+ * contains valid value. Otherwise use default value. The purpose of
+ * this validation is to protect against the old hardware, in which
+ * this register can return zero.
+ */
+ if (regval > 0 && regval <= MLXREG_FAN_TACHO_DIV_SCALE_MAX)
+ fan->divider = regval * MLXREG_FAN_TACHO_DIV_MIN;
+
+ return 0;
+}
+
static int mlxreg_fan_config(struct mlxreg_fan *fan,
struct mlxreg_core_platform_data *pdata)
{
struct mlxreg_core_data *data = pdata->data;
bool configured = false;
int tacho_num = 0, i;
+ int err;
fan->samples = MLXREG_FAN_TACHO_SAMPLES_PER_PULSE_DEF;
- fan->divider = MLXREG_FAN_TACHO_DIVIDER_DEF;
+ fan->divider = MLXREG_FAN_TACHO_DIV_DEF;
for (i = 0; i < pdata->counter; i++, data++) {
if (strnstr(data->label, "tacho", sizeof(data->label))) {
if (tacho_num == MLXREG_FAN_MAX_TACHO) {
data->label);
return -EINVAL;
}
+
+ if (data->capability) {
+ err = mlxreg_fan_connect_verify(fan, data);
+ if (err < 0)
+ return err;
+ else if (!err) {
+ tacho_num++;
+ continue;
+ }
+ }
+
fan->tacho[tacho_num].reg = data->reg;
fan->tacho[tacho_num].mask = data->mask;
fan->tacho[tacho_num++].connected = true;
return -EINVAL;
}
/* Validate that conf parameters are not zeros. */
- if (!data->mask || !data->bit) {
+ if (!data->mask && !data->bit && !data->capability) {
dev_err(fan->dev, "invalid conf entry params: %s\n",
data->label);
return -EINVAL;
}
- fan->samples = data->mask;
- fan->divider = data->bit;
+ if (data->capability) {
+ err = mlxreg_fan_speed_divider_get(fan, data);
+ if (err)
+ return err;
+ } else {
+ if (data->mask)
+ fan->samples = data->mask;
+ if (data->bit)
+ fan->divider = data->bit;
+ }
configured = true;
} else {
dev_err(fan->dev, "invalid label: %s\n", data->label);
static int mlxreg_fan_probe(struct platform_device *pdev)
{
struct mlxreg_core_platform_data *pdata;
+ struct device *dev = &pdev->dev;
struct mlxreg_fan *fan;
struct device *hwm;
int err;
- pdata = dev_get_platdata(&pdev->dev);
+ pdata = dev_get_platdata(dev);
if (!pdata) {
- dev_err(&pdev->dev, "Failed to get platform data.\n");
+ dev_err(dev, "Failed to get platform data.\n");
return -EINVAL;
}
- fan = devm_kzalloc(&pdev->dev, sizeof(*fan), GFP_KERNEL);
+ fan = devm_kzalloc(dev, sizeof(*fan), GFP_KERNEL);
if (!fan)
return -ENOMEM;
- fan->dev = &pdev->dev;
+ fan->dev = dev;
fan->regmap = pdata->regmap;
- platform_set_drvdata(pdev, fan);
err = mlxreg_fan_config(fan, pdata);
if (err)
return err;
- hwm = devm_hwmon_device_register_with_info(&pdev->dev, "mlxreg_fan",
+ hwm = devm_hwmon_device_register_with_info(dev, "mlxreg_fan",
fan,
&mlxreg_fan_hwmon_chip_info,
NULL);
if (IS_ERR(hwm)) {
- dev_err(&pdev->dev, "Failed to register hwmon device\n");
+ dev_err(dev, "Failed to register hwmon device\n");
return PTR_ERR(hwm);
}
if (IS_REACHABLE(CONFIG_THERMAL)) {
- fan->cdev = thermal_cooling_device_register("mlxreg_fan", fan,
- &mlxreg_fan_cooling_ops);
+ fan->cdev = devm_thermal_of_cooling_device_register(dev,
+ NULL, "mlxreg_fan", fan, &mlxreg_fan_cooling_ops);
if (IS_ERR(fan->cdev)) {
- dev_err(&pdev->dev, "Failed to register cooling device\n");
+ dev_err(dev, "Failed to register cooling device\n");
return PTR_ERR(fan->cdev);
}
}
return 0;
}
- static int mlxreg_fan_remove(struct platform_device *pdev)
- {
- struct mlxreg_fan *fan = platform_get_drvdata(pdev);
-
- if (IS_REACHABLE(CONFIG_THERMAL))
- thermal_cooling_device_unregister(fan->cdev);
-
- return 0;
- }
-
static struct platform_driver mlxreg_fan_driver = {
.driver = {
.name = "mlxreg-fan",
},
.probe = mlxreg_fan_probe,
- .remove = mlxreg_fan_remove,
};
module_platform_driver(mlxreg_fan_driver);
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/regulator/consumer.h>
#include <linux/sysfs.h>
#include <linux/thermal.h>
+#include <linux/timer.h>
#define MAX_PWM 255
struct mutex lock;
struct pwm_device *pwm;
struct regulator *reg_en;
+
+ int irq;
+ atomic_t pulses;
+ unsigned int rpm;
+ u8 pulses_per_revolution;
+ ktime_t sample_start;
+ struct timer_list rpm_timer;
+
unsigned int pwm_value;
unsigned int pwm_fan_state;
unsigned int pwm_fan_max_state;
struct thermal_cooling_device *cdev;
};
+/* This handler assumes self resetting edge triggered interrupt. */
+static irqreturn_t pulse_handler(int irq, void *dev_id)
+{
+ struct pwm_fan_ctx *ctx = dev_id;
+
+ atomic_inc(&ctx->pulses);
+
+ return IRQ_HANDLED;
+}
+
+static void sample_timer(struct timer_list *t)
+{
+ struct pwm_fan_ctx *ctx = from_timer(ctx, t, rpm_timer);
+ int pulses;
+ u64 tmp;
+
+ pulses = atomic_read(&ctx->pulses);
+ atomic_sub(pulses, &ctx->pulses);
+ tmp = (u64)pulses * ktime_ms_delta(ktime_get(), ctx->sample_start) * 60;
+ do_div(tmp, ctx->pulses_per_revolution * 1000);
+ ctx->rpm = tmp;
+
+ ctx->sample_start = ktime_get();
+ mod_timer(&ctx->rpm_timer, jiffies + HZ);
+}
+
static int __set_pwm(struct pwm_fan_ctx *ctx, unsigned long pwm)
{
unsigned long period;
return sprintf(buf, "%u\n", ctx->pwm_value);
}
+static ssize_t rpm_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pwm_fan_ctx *ctx = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ctx->rpm);
+}
static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0);
+static SENSOR_DEVICE_ATTR_RO(fan1_input, rpm, 0);
static struct attribute *pwm_fan_attrs[] = {
&sensor_dev_attr_pwm1.dev_attr.attr,
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
NULL,
};
-ATTRIBUTE_GROUPS(pwm_fan);
+static umode_t pwm_fan_attrs_visible(struct kobject *kobj, struct attribute *a,
+ int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct pwm_fan_ctx *ctx = dev_get_drvdata(dev);
+
+ /* Hide fan_input in case no interrupt is available */
+ if (n == 1 && ctx->irq <= 0)
+ return 0;
+
+ return a->mode;
+}
+
+static const struct attribute_group pwm_fan_group = {
+ .attrs = pwm_fan_attrs,
+ .is_visible = pwm_fan_attrs_visible,
+};
+
+static const struct attribute_group *pwm_fan_groups[] = {
+ &pwm_fan_group,
+ NULL,
+};
/* thermal cooling device callbacks */
static int pwm_fan_get_max_state(struct thermal_cooling_device *cdev,
return 0;
}
-static void pwm_fan_pwm_disable(void *data)
+ static void pwm_fan_regulator_disable(void *data)
+ {
+ regulator_disable(data);
+ }
+
- pwm_disable(data);
++static void pwm_fan_pwm_disable(void *__ctx)
+ {
++ struct pwm_fan_ctx *ctx = __ctx;
++ pwm_disable(ctx->pwm);
++ del_timer_sync(&ctx->rpm_timer);
+ }
+
static int pwm_fan_probe(struct platform_device *pdev)
{
struct thermal_cooling_device *cdev;
+ struct device *dev = &pdev->dev;
struct pwm_fan_ctx *ctx;
struct device *hwmon;
int ret;
struct pwm_state state = { };
+ u32 ppr = 2;
- ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mutex_init(&ctx->lock);
- ctx->pwm = devm_of_pwm_get(&pdev->dev, pdev->dev.of_node, NULL);
+ ctx->pwm = devm_of_pwm_get(dev, dev->of_node, NULL);
if (IS_ERR(ctx->pwm)) {
ret = PTR_ERR(ctx->pwm);
if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "Could not get PWM: %d\n", ret);
+ dev_err(dev, "Could not get PWM: %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, ctx);
- ctx->reg_en = devm_regulator_get_optional(&pdev->dev, "fan");
+ ctx->irq = platform_get_irq(pdev, 0);
+ if (ctx->irq == -EPROBE_DEFER)
+ return ctx->irq;
+
+ ctx->reg_en = devm_regulator_get_optional(dev, "fan");
if (IS_ERR(ctx->reg_en)) {
if (PTR_ERR(ctx->reg_en) != -ENODEV)
return PTR_ERR(ctx->reg_en);
} else {
ret = regulator_enable(ctx->reg_en);
if (ret) {
- dev_err(&pdev->dev,
- "Failed to enable fan supply: %d\n", ret);
+ dev_err(dev, "Failed to enable fan supply: %d\n", ret);
return ret;
}
+ devm_add_action_or_reset(dev, pwm_fan_regulator_disable,
+ ctx->reg_en);
}
ctx->pwm_value = MAX_PWM;
ret = pwm_apply_state(ctx->pwm, &state);
if (ret) {
- dev_err(&pdev->dev, "Failed to configure PWM: %d\n", ret);
- goto err_reg_disable;
- dev_err(dev, "Failed to configure PWM\n");
++ dev_err(dev, "Failed to configure PWM: %d\n", ret);
+ return ret;
}
-
- devm_add_action_or_reset(dev, pwm_fan_pwm_disable, ctx->pwm);
+ timer_setup(&ctx->rpm_timer, sample_timer, 0);
++ devm_add_action_or_reset(dev, pwm_fan_pwm_disable, ctx);
+
- of_property_read_u32(pdev->dev.of_node, "pulses-per-revolution", &ppr);
++ of_property_read_u32(dev->of_node, "pulses-per-revolution", &ppr);
+ ctx->pulses_per_revolution = ppr;
+ if (!ctx->pulses_per_revolution) {
- dev_err(&pdev->dev, "pulses-per-revolution can't be zero.\n");
- ret = -EINVAL;
- goto err_pwm_disable;
++ dev_err(dev, "pulses-per-revolution can't be zero.\n");
++ return -EINVAL;
+ }
+
+ if (ctx->irq > 0) {
- ret = devm_request_irq(&pdev->dev, ctx->irq, pulse_handler, 0,
++ ret = devm_request_irq(dev, ctx->irq, pulse_handler, 0,
+ pdev->name, ctx);
+ if (ret) {
- dev_err(&pdev->dev,
- "Failed to request interrupt: %d\n", ret);
- goto err_pwm_disable;
++ dev_err(dev, "Failed to request interrupt: %d\n", ret);
++ return ret;
+ }
+ ctx->sample_start = ktime_get();
+ mod_timer(&ctx->rpm_timer, jiffies + HZ);
+ }
- hwmon = devm_hwmon_device_register_with_groups(&pdev->dev, "pwmfan",
+ hwmon = devm_hwmon_device_register_with_groups(dev, "pwmfan",
ctx, pwm_fan_groups);
if (IS_ERR(hwmon)) {
- ret = PTR_ERR(hwmon);
- dev_err(&pdev->dev,
- "Failed to register hwmon device: %d\n", ret);
- goto err_del_timer;
+ dev_err(dev, "Failed to register hwmon device\n");
+ return PTR_ERR(hwmon);
}
- ret = pwm_fan_of_get_cooling_data(&pdev->dev, ctx);
+ ret = pwm_fan_of_get_cooling_data(dev, ctx);
if (ret)
- goto err_del_timer;
+ return ret;
ctx->pwm_fan_state = ctx->pwm_fan_max_state;
if (IS_ENABLED(CONFIG_THERMAL)) {
- cdev = thermal_of_cooling_device_register(pdev->dev.of_node,
- "pwm-fan", ctx,
- &pwm_fan_cooling_ops);
+ cdev = devm_thermal_of_cooling_device_register(dev,
+ dev->of_node, "pwm-fan", ctx, &pwm_fan_cooling_ops);
if (IS_ERR(cdev)) {
- dev_err(&pdev->dev,
+ ret = PTR_ERR(cdev);
- "Failed to register pwm-fan as cooling device");
- return PTR_ERR(cdev);
+ dev_err(dev,
- goto err_del_timer;
+ "Failed to register pwm-fan as cooling device: %d\n",
+ ret);
++ return ret;
}
ctx->cdev = cdev;
thermal_cdev_update(cdev);
}
return 0;
-
- err_del_timer:
- del_timer_sync(&ctx->rpm_timer);
-
- err_pwm_disable:
- state.enabled = false;
- pwm_apply_state(ctx->pwm, &state);
-
- err_reg_disable:
- if (ctx->reg_en)
- regulator_disable(ctx->reg_en);
-
- return ret;
- }
-
- static int pwm_fan_remove(struct platform_device *pdev)
- {
- struct pwm_fan_ctx *ctx = platform_get_drvdata(pdev);
-
- thermal_cooling_device_unregister(ctx->cdev);
- del_timer_sync(&ctx->rpm_timer);
-
- if (ctx->pwm_value)
- pwm_disable(ctx->pwm);
-
- if (ctx->reg_en)
- regulator_disable(ctx->reg_en);
-
- return 0;
}
#ifdef CONFIG_PM_SLEEP
static struct platform_driver pwm_fan_driver = {
.probe = pwm_fan_probe,
- .remove = pwm_fan_remove,
.driver = {
.name = "pwm-fan",
.pm = &pwm_fan_pm,
projects / linux.git / commitdiff