S: Maintained
F: drivers/acpi/arm64
+F: include/linux/acpi_iort.h
ACPI FOR RISC-V (ACPI/riscv)
W: https://wiki.analog.com/resources/tools-software/linux-drivers/iio-adc/ad738x
W: https://ez.analog.com/linux-software-drivers
F: Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml
+F: Documentation/iio/ad7380.rst
F: drivers/iio/adc/ad7380.c
AD7877 TOUCHSCREEN DRIVER
F: drivers/mfd/adp5520.c
F: drivers/video/backlight/adp5520_bl.c
+ADP5585 GPIO EXPANDER, PWM AND KEYPAD CONTROLLER DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/*/adi,adp5585*.yaml
+F: drivers/gpio/gpio-adp5585.c
+F: drivers/mfd/adp5585.c
+F: drivers/pwm/pwm-adp5585.c
+F: include/linux/mfd/adp5585.h
+
ADP5588 QWERTY KEYPAD AND IO EXPANDER DRIVER (ADP5588/ADP5587)
S: Supported
F: drivers/iio/accel/adxl372_i2c.c
F: drivers/iio/accel/adxl372_spi.c
+ADXL380 THREE-AXIS DIGITAL ACCELEROMETER DRIVER
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/iio/accel/adi,adxl380.yaml
+F: drivers/iio/accel/adxl380.c
+F: drivers/iio/accel/adxl380.h
+F: drivers/iio/accel/adxl380_i2c.c
+F: drivers/iio/accel/adxl380_spi.c
+
AF8133J THREE-AXIS MAGNETOMETER DRIVER
S: Maintained
T: git https://gitlab.freedesktop.org/agd5f/linux.git
F: drivers/gpu/drm/amd/display/
+AMD DISPLAY CORE - DML
+S: Supported
+F: drivers/gpu/drm/amd/display/dc/dml/
+F: drivers/gpu/drm/amd/display/dc/dml2/
+
AMD FAM15H PROCESSOR POWER MONITORING DRIVER
S: Maintained
F: drivers/dma/ptdma/
+AMD QDMA DRIVER
+S: Supported
+F: drivers/dma/amd/qdma/
+F: include/linux/platform_data/amd_qdma.h
+
AMD SEATTLE DEVICE TREE SUPPORT
F: arch/arm64/boot/dts/amd/amd-seattle-xgbe*.dtsi
F: drivers/net/ethernet/amd/xgbe/
+AMLOGIC BLUETOOTH DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/net/bluetooth/amlogic,w155s2-bt.yaml
+F: drivers/bluetooth/hci_aml.c
+
AMLOGIC DDR PMU DRIVER
F: Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml
F: drivers/iio/dac/ad3552r.c
+ANALOG DEVICES INC AD4000 DRIVER
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/iio/adc/adi,ad4000.yaml
+F: Documentation/iio/ad4000.rst
+F: drivers/iio/adc/ad4000.c
+
ANALOG DEVICES INC AD4130 DRIVER
F: Documentation/devicetree/bindings/iio/adc/adi,ad4130.yaml
F: drivers/iio/adc/ad4130.c
+ANALOG DEVICES INC AD4695 DRIVER
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/iio/adc/adi,ad4695.yaml
+F: Documentation/iio/ad4695.rst
+F: drivers/iio/adc/ad4695.c
+F: include/dt-bindings/iio/adi,ad4695.h
+
ANALOG DEVICES INC AD7091R DRIVER
F: Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
F: drivers/iio/adc/ad7780.c
+ANALOG DEVICES INC AD9467 DRIVER
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/ABI/testing/debugfs-iio-ad9467
+F: Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml
+F: drivers/iio/adc/ad9467.c
+
ANALOG DEVICES INC AD9739a DRIVER
F: Documentation/devicetree/bindings/perf/apm-xgene-pmu.txt
F: drivers/perf/xgene_pmu.c
+APPLIED MICRO QT2025 PHY DRIVER
+S: Maintained
+F: drivers/net/phy/qt2025.rs
+
APTINA CAMERA SENSOR PLL
F: drivers/power/reset/arm-versatile-reboot.c
F: drivers/soc/versatile/
+ARM INTERCONNECT PMU DRIVERS
+S: Supported
+F: Documentation/admin-guide/perf/arm-cmn.rst
+F: Documentation/admin-guide/perf/arm-ni.rst
+F: Documentation/devicetree/bindings/perf/arm,cmn.yaml
+F: Documentation/devicetree/bindings/perf/arm,ni.yaml
+F: drivers/perf/arm-cmn.c
+F: drivers/perf/arm-ni.c
+F: tools/perf/pmu-events/arch/arm64/arm/cmn/
+
ARM KOMEDA DRM-KMS DRIVER
S: Supported
S: Supported
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
F: Documentation/gpu/panfrost.rst
+F: drivers/gpu/drm/ci/xfails/panfrost*
F: drivers/gpu/drm/panfrost/
F: include/uapi/drm/panfrost_drm.h
F: drivers/iommu/arm/
F: drivers/iommu/io-pgtable-arm*
+ARM SMMU SVA SUPPORT
+F: drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
+
ARM SUB-ARCHITECTURES
S: Maintained
ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE
S: Maintained
F: Documentation/devicetree/bindings/iio/adc/cirrus,ep9301-adc.yaml
ARM/LPC32XX SOC SUPPORT
S: Maintained
T: git git://github.com/vzapolskiy/linux-lpc32xx.git
F: Documentation/devicetree/bindings/i2c/nxp,pnx-i2c.yaml
F: arch/arm/boot/dts/nxp/lpc/lpc32*
F: arch/arm/mach-lpc32xx/
+F: drivers/dma/lpc32xx-dmamux.c
F: drivers/i2c/busses/i2c-pnx.c
F: drivers/net/ethernet/nxp/lpc_eth.c
F: drivers/usb/host/ohci-nxp.c
F: drivers/watchdog/pnx4008_wdt.c
N: lpc32xx
+LPC32XX DMAMUX SUPPORT
+S: Maintained
+F: Documentation/devicetree/bindings/dma/nxp,lpc3220-dmamux.yaml
+
ARM/Marvell Dove/MV78xx0/Orion SOC support
S: Supported
W: http://www.linux4sam.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux.git
-F: arch/arm/boot/dts/microchip/at91*
-F: arch/arm/boot/dts/microchip/sama*
+F: arch/arm/boot/dts/microchip/
F: arch/arm/include/debug/at91.S
F: arch/arm/mach-at91/
F: drivers/memory/atmel*
F: drivers/mfd/ssbi.c
F: drivers/mmc/host/mmci_qcom*
F: drivers/mmc/host/sdhci-msm.c
-F: drivers/pci/controller/dwc/pcie-qcom.c
+F: drivers/pci/controller/dwc/pcie-qcom*
F: drivers/phy/qualcomm/
F: drivers/power/*/msm*
F: drivers/reset/reset-qcom-*
ARM/QUALCOMM SUPPORT
-M: Konrad Dybcio <konrad.dybcio@linaro.org>
+M: Konrad Dybcio <konradybcio@kernel.org>
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git
W: http://linux-atm.sourceforge.net
F: drivers/atm/
F: include/linux/atm*
+F: include/linux/sonet.h
F: include/uapi/linux/atm*
+F: include/uapi/linux/sonet.h
ATMEL MACB ETHERNET DRIVER
F: fs/befs/
BFQ I/O SCHEDULER
-S: Maintained
+S: Odd Fixes
F: Documentation/block/bfq-iosched.rst
F: block/bfq-*
F: lib/sbitmap.c
BLOCK LAYER DEVICE DRIVER API [RUST]
-M: Andreas Hindborg <a.hindborg@samsung.com>
+M: Andreas Hindborg <a.hindborg@kernel.org>
F: drivers/iio/imu/bmi323/
BPF JIT for ARC
S: Maintained
F: arch/arc/net/
F: include/uapi/linux/filter.h
F: kernel/bpf/
F: kernel/trace/bpf_trace.c
+F: lib/buildid.c
F: lib/test_bpf.c
F: net/bpf/
F: net/core/filter.c
S: Maintained
F: kernel/bpf/stackmap.c
F: kernel/trace/bpf_trace.c
+F: lib/buildid.c
BROADCOM ASP 2.0 ETHERNET DRIVER
F: drivers/media/cec/platform/cec-gpio/
CELL BROADBAND ENGINE ARCHITECTURE
-S: Supported
-W: http://www.ibm.com/developerworks/power/cell/
+S: Orphan
F: arch/powerpc/include/asm/cell*.h
F: arch/powerpc/include/asm/spu*.h
F: arch/powerpc/include/uapi/asm/spu*.h
F: Documentation/admin-guide/module-signing.rst
F: certs/
F: scripts/sign-file.c
+F: scripts/ssl-common.h
F: tools/certs/
CFAG12864B LCD DRIVER
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
F: Documentation/admin-guide/cgroup-v1/cpusets.rst
F: include/linux/cpuset.h
+F: kernel/cgroup/cpuset-internal.h
+F: kernel/cgroup/cpuset-v1.c
F: kernel/cgroup/cpuset.c
F: tools/testing/selftests/cgroup/test_cpuset.c
F: tools/testing/selftests/cgroup/test_cpuset_prs.sh
+F: tools/testing/selftests/cgroup/test_cpuset_v1_base.sh
CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)
S: Maintained
F: tools/power/cpupower/
CW1200 WLAN driver
S: Orphan
F: drivers/net/wireless/st/cw1200/
+F: include/linux/platform_data/net-cw1200.h
CX18 VIDEO4LINUX DRIVER
F: include/uapi/linux/devlink.h
F: net/devlink/
+DFROBOT SD2405AL RTC DRIVER
+S: Maintained
+F: drivers/rtc/rtc-sd2405al.c
+
DH ELECTRONICS IMX6 DHCOM/DHCOR BOARD SUPPORT
F: Documentation/devicetree/bindings/regulator/dlg,da9*.yaml
F: Documentation/devicetree/bindings/regulator/dlg,slg51000.yaml
F: Documentation/devicetree/bindings/sound/da[79]*.txt
+F: Documentation/devicetree/bindings/sound/dlg,da7213.yaml
F: Documentation/devicetree/bindings/thermal/dlg,da9062-thermal.yaml
F: Documentation/devicetree/bindings/watchdog/dlg,da9062-watchdog.yaml
F: Documentation/hwmon/da90??.rst
F: drivers/dma-buf/heaps/*
F: include/linux/dma-heap.h
F: include/uapi/linux/dma-heap.h
+F: tools/testing/selftests/dmabuf-heaps/
DMC FREQUENCY DRIVER FOR SAMSUNG EXYNOS5422
S: Maintained
+F: Documentation/dev-tools/
F: Documentation/maintainer/
F: Documentation/process/
S: Maintained
+F: Documentation/admin-guide/bug-bisect.rst
F: Documentation/admin-guide/quickly-build-trimmed-linux.rst
F: Documentation/admin-guide/reporting-issues.rst
F: Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
DRM DRIVER for Qualcomm Adreno GPUs
-R: Konrad Dybcio <konrad.dybcio@linaro.org>
+R: Konrad Dybcio <konradybcio@kernel.org>
DRM DRIVER FOR VIRTUAL KERNEL MODESETTING (VKMS)
S: Maintained
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
DRM DRIVERS
-M: Daniel Vetter <daniel@ffwll.ch>
+M: Simona Vetter <simona@ffwll.ch>
S: Maintained
B: https://gitlab.freedesktop.org/drm
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
F: Documentation/devicetree/bindings/display/bridge/
F: drivers/gpu/drm/bridge/
+F: drivers/gpu/drm/display/drm_bridge_connector.c
F: drivers/gpu/drm/drm_bridge.c
-F: drivers/gpu/drm/drm_bridge_connector.c
F: include/drm/drm_bridge.h
F: include/drm/drm_bridge_connector.h
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git
-F: Documentation/devicetree/bindings/display/exynos/
F: Documentation/devicetree/bindings/display/samsung/
F: drivers/gpu/drm/exynos/
F: include/uapi/drm/exynos_drm.h
F: include/linux/of_net.h
F: include/linux/phy.h
F: include/linux/phy_fixed.h
+F: include/linux/phy_link_topology.h
F: include/linux/phylib_stubs.h
F: include/linux/platform_data/mdio-bcm-unimac.h
F: include/linux/platform_data/mdio-gpio.h
S: Maintained
F: rust/kernel/net/phy.rs
+F: rust/kernel/net/phy/reg.rs
EXEC & BINFMT API, ELF
EXFAT FILE SYSTEM
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat.git
F: tools/bootconfig/*
F: tools/bootconfig/scripts/*
+EXTRON DA HD 4K PLUS CEC DRIVER
+S: Maintained
+T: git git://linuxtv.org/media_tree.git
+F: drivers/media/cec/usb/extron-da-hd-4k-plus/
+
EXYNOS DP DRIVER
S: Supported
F: Documentation/fault-injection/
F: lib/fault-inject.c
+F: tools/testing/fault-injection/
FBTFT Framebuffer drivers
S: Maintained
+T: git https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
F: fs/*
F: include/linux/fs.h
F: include/linux/fs_types.h
F: lib/fortify_kunit.c
F: lib/memcpy_kunit.c
F: lib/test_fortify/*
-F: scripts/test_fortify.sh
K: \b__NO_FORTIFY\b
FPGA DFL DRIVERS
F: arch/x86/math-emu/
FRAMEBUFFER CORE
-M: Daniel Vetter <daniel@ffwll.ch>
+M: Simona Vetter <simona@ffwll.ch>
S: Odd Fixes
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
F: drivers/video/fbdev/core/
FREESCALE DSPI DRIVER
S: Maintained
F: Documentation/devicetree/bindings/spi/fsl,dspi*.yaml
F: drivers/spi/spi-fsl-dspi.c
F: Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
F: drivers/i2c/busses/i2c-imx-lpi2c.c
+FREESCALE IMX LPSPI DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
+F: drivers/spi/spi-fsl-lpspi.c
+
FREESCALE MPC I2C DRIVER
FREESCALE QUAD SPI DRIVER
S: Maintained
F: Documentation/devicetree/bindings/spi/fsl,spi-fsl-qspi.yaml
F: drivers/spi/spi-fsl-qspi.c
S: Maintained
F: Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-scc-qmc.yaml
+F: Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml
F: drivers/soc/fsl/qe/qmc.c
F: include/soc/fsl/qe/qmc.h
S: Maintained
F: Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
+F: Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-tsa.yaml
F: drivers/soc/fsl/qe/tsa.c
F: drivers/soc/fsl/qe/tsa.h
F: include/dt-bindings/soc/cpm1-fsl,tsa.h
+F: include/dt-bindings/soc/qe-fsl,tsa.h
FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
F: drivers/infiniband/hw/hns/
HISILICON SAS Controller
-M: Xiang Chen <chenxiang66@hisilicon.com>
+M: Yihang Li <liyihang9@huawei.com>
S: Supported
W: http://www.hisilicon.com
F: Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
S: Maintained
+F: Documentation/ABI/testing/debugfs-iio-backend
F: drivers/iio/industrialio-backend.c
F: include/linux/iio/backend.h
F: Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
F: Documentation/devicetree/bindings/gpu/img,powervr-sgx.yaml
F: Documentation/gpu/imagination/
+F: drivers/gpu/drm/ci/xfails/powervr*
F: drivers/gpu/drm/imagination/
F: include/uapi/drm/pvr_drm.h
F: Documentation/input/
F: drivers/input/
F: include/dt-bindings/input/
+F: include/linux/gameport.h
+F: include/linux/i8042.h
F: include/linux/input.h
F: include/linux/input/
+F: include/linux/libps2.h
+F: include/linux/serio.h
+F: include/uapi/linux/gameport.h
F: include/uapi/linux/input-event-codes.h
F: include/uapi/linux/input.h
+F: include/uapi/linux/serio.h
+F: include/uapi/linux/uinput.h
INPUT MULTITOUCH (MT) PROTOCOL
F: security/integrity/
F: security/integrity/ima/
+INTEGRITY POLICY ENFORCEMENT (IPE)
+S: Supported
+T: git https://github.com/microsoft/ipe.git
+F: Documentation/admin-guide/LSM/ipe.rst
+F: Documentation/security/ipe.rst
+F: scripts/ipe/
+F: security/ipe/
+
INTEL 810/815 FRAMEBUFFER DRIVER
INTEL ASoC DRIVERS
S: Supported
F: sound/soc/intel/
F: Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update
F: drivers/fpga/intel-m10-bmc-sec-update.c
+INTEL MID (Mobile Internet Device) PLATFORM
+S: Supported
+F: arch/x86/include/asm/intel-mid.h
+F: arch/x86/pci/intel_mid_pci.c
+F: arch/x86/platform/intel-mid/
+F: drivers/extcon/extcon-intel-mrfld.c
+F: drivers/iio/adc/intel_mrfld_adc.c
+F: drivers/mfd/intel_soc_pmic_mrfld.c
+F: drivers/platform/x86/intel/mrfld_pwrbtn.c
+F: drivers/platform/x86/intel_scu_*
+F: drivers/staging/media/atomisp/
+F: drivers/watchdog/intel-mid_wdt.c
+F: include/linux/mfd/intel_soc_pmic_mrfld.h
+F: include/linux/platform_data/x86/intel-mid_wdt.h
+F: include/linux/platform_data/x86/intel_scu_ipc.h
+
INTEL P-Unit IPC DRIVER
INTEL SCU DRIVERS
S: Maintained
-F: arch/x86/include/asm/intel_scu_ipc.h
F: drivers/platform/x86/intel_scu_*
+F: include/linux/platform_data/x86/intel_scu_ipc.h
INTEL SDSI DRIVER
INTEL VENDOR SPECIFIC EXTENDED CAPABILITIES DRIVER
S: Supported
-F: drivers/platform/x86/intel/vsec.*
+F: drivers/platform/x86/intel/vsec.c
+F: include/linux/intel_vsec.h
INTEL VIRTUAL BUTTON DRIVER
F: drivers/iommu/dma-iommu.c
F: drivers/iommu/dma-iommu.h
F: drivers/iommu/iova.c
+F: include/linux/iommu-dma.h
F: include/linux/iova.h
IOMMU SUBSYSTEM
JME NETWORK DRIVER
-S: Maintained
+S: Odd Fixes
F: drivers/net/ethernet/jme.*
JOURNALLING FLASH FILE SYSTEM V2 (JFFS2)
-R: Olga Kornievskaia <kolga@netapp.com>
+R: Olga Kornievskaia <okorniev@redhat.com>
S: Maintained
T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
+F: Documentation/virt/kvm/loongarch/
F: arch/loongarch/include/asm/kvm*
F: arch/loongarch/include/uapi/asm/kvm*
F: arch/loongarch/kvm/
S: Supported
W: https://github.com/linuxppc/wiki/wiki
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
F: Documentation/atomic_bitops.txt
F: Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml
F: drivers/iio/dac/ltc1660.c
+LTC2664 IIO DAC DRIVER
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/devicetree/bindings/iio/dac/adi,ltc2664.yaml
+F: Documentation/devicetree/bindings/iio/dac/adi,ltc2672.yaml
+F: drivers/iio/dac/ltc2664.c
+
LTC2688 IIO DAC DRIVER
F: Documentation/devicetree/bindings/mfd/marvell,88pm886-a1.yaml
F: drivers/input/misc/88pm886-onkey.c
F: drivers/mfd/88pm886.c
-F: drivers/regulators/88pm886-regulator.c
+F: drivers/regulator/88pm886-regulator.c
F: include/linux/mfd/88pm886.h
MARVELL ARMADA 3700 PHY DRIVERS
S: Maintained
F: drivers/net/ethernet/marvell/mv643xx_eth.*
-F: include/linux/mv643xx.h
MARVELL MV88X3310 PHY DRIVER
S: Maintained
+F: Documentation/devicetree/bindings/net/bluetooth/mediatek,bluetooth.txt
F: Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml
-F: Documentation/devicetree/bindings/net/mediatek-bluetooth.txt
F: drivers/bluetooth/btmtkuart.c
MEDIATEK BOARD LEVEL SHUTDOWN DRIVERS
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: https://patchwork.kernel.org/project/netdevbpf/list/
F: drivers/net/ethernet/mellanox/mlx4/en_*
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: https://patchwork.kernel.org/project/netdevbpf/list/
F: drivers/net/ethernet/mellanox/mlx5/core/en_*
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: https://patchwork.kernel.org/project/netdevbpf/list/
F: drivers/net/ethernet/mellanox/mlx5/core/en_accel/*
F: drivers/net/ethernet/mellanox/mlx5/core/fpga/*
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: https://patchwork.kernel.org/project/netdevbpf/list/
F: drivers/net/ethernet/mellanox/mlxsw/
F: tools/testing/selftests/drivers/net/mlxsw/
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: https://patchwork.kernel.org/project/netdevbpf/list/
F: drivers/net/ethernet/mellanox/mlxfw/
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: https://patchwork.kernel.org/project/netdevbpf/list/
F: drivers/net/ethernet/mellanox/mlx4/
F: include/linux/mlx4/
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: http://patchwork.kernel.org/project/linux-rdma/list/
F: drivers/infiniband/hw/mlx4/
F: include/linux/mlx4/
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: https://patchwork.kernel.org/project/netdevbpf/list/
F: Documentation/networking/device_drivers/ethernet/mellanox/
F: drivers/net/ethernet/mellanox/mlx5/core/
S: Supported
-W: http://www.mellanox.com
+W: https://www.nvidia.com/networking/
Q: http://patchwork.kernel.org/project/linux-rdma/list/
F: drivers/infiniband/hw/mlx5/
F: include/linux/mlx5/
S: Supported
+F: Documentation/networking/device_drivers/ethernet/meta/
F: drivers/net/ethernet/meta/
METHODE UDPU SUPPORT
S: Maintained
F: drivers/net/ethernet/microchip/lan743x_*
+MICROCHIP LAN8650/1 10BASE-T1S MACPHY ETHERNET DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/net/microchip,lan8650.yaml
+F: drivers/net/ethernet/microchip/lan865x/lan865x.c
+
MICROCHIP LAN87xx/LAN937x T1 PHY DRIVER
F: drivers/nvmem/microchip-otpc.c
F: include/dt-bindings/nvmem/microchip,sama7g5-otpc.h
+MICROCHIP PAC1921 POWER/CURRENT MONITOR DRIVER
+S: Supported
+F: Documentation/devicetree/bindings/iio/adc/microchip,pac1921.yaml
+F: drivers/iio/adc/pac1921.c
+
MICROCHIP PAC1934 POWER/ENERGY MONITOR DRIVER
F: Documentation/hwmon/surface_fan.rst
F: drivers/hwmon/surface_fan.c
+MICROSOFT SURFACE SENSOR THERMAL DRIVER
+S: Maintained
+F: drivers/hwmon/surface_temp.c
+
MICROSOFT SURFACE GPE LID SUPPORT DRIVER
S: Maintained
F: Documentation/networking/netconsole.rst
F: drivers/net/netconsole.c
+F: tools/testing/selftests/drivers/net/netcons_basic.sh
NETDEVSIM
F: include/dt-bindings/net/
F: include/linux/cn_proc.h
F: include/linux/etherdevice.h
+F: include/linux/ethtool_netlink.h
F: include/linux/fcdevice.h
F: include/linux/fddidevice.h
F: include/linux/hippidevice.h
F: include/linux/if_*
F: include/linux/inetdevice.h
-F: include/linux/netdevice.h
+F: include/linux/netdev*
+F: include/linux/platform_data/wiznet.h
F: include/uapi/linux/cn_proc.h
+F: include/uapi/linux/ethtool_netlink.h
F: include/uapi/linux/if_*
-F: include/uapi/linux/netdevice.h
+F: include/uapi/linux/netdev*
+F: tools/testing/selftests/drivers/net/
+X: Documentation/devicetree/bindings/net/bluetooth/
+X: Documentation/devicetree/bindings/net/wireless/
X: drivers/net/wireless/
NETWORKING DRIVERS (WIRELESS)
F: include/linux/framer/framer.h
F: include/linux/in.h
F: include/linux/indirect_call_wrapper.h
+F: include/linux/inet.h
+F: include/linux/inet_diag.h
F: include/linux/net.h
-F: include/linux/netdevice.h
-F: include/linux/skbuff.h
+F: include/linux/netdev*
+F: include/linux/netlink.h
+F: include/linux/netpoll.h
+F: include/linux/rtnetlink.h
+F: include/linux/seq_file_net.h
+F: include/linux/skbuff*
F: include/net/
+F: include/uapi/linux/genetlink.h
+F: include/uapi/linux/hsr_netlink.h
F: include/uapi/linux/in.h
+F: include/uapi/linux/inet_diag.h
+F: include/uapi/linux/nbd-netlink.h
F: include/uapi/linux/net.h
F: include/uapi/linux/net_namespace.h
-F: include/uapi/linux/netdevice.h
+F: include/uapi/linux/netconf.h
+F: include/uapi/linux/netdev*
+F: include/uapi/linux/netlink.h
+F: include/uapi/linux/netlink_diag.h
+F: include/uapi/linux/rtnetlink.h
F: lib/net_utils.c
F: lib/random32.c
F: net/
S: Maintained
F: Documentation/devicetree/bindings/spi/spi-nxp-fspi.yaml
F: drivers/spi/spi-nxp-fspi.c
S: Maintained
+F: Documentation/devicetree/bindings/media/i2c/ovti,og01a1b.yaml
F: drivers/media/i2c/og01a1b.c
OMNIVISION OV01A10 SENSOR DRIVER
S: Supported
F: drivers/infiniband/ulp/opa_vnic
+OPEN ALLIANCE 10BASE-T1S MACPHY SERIAL INTERFACE FRAMEWORK
+S: Maintained
+F: Documentation/networking/oa-tc6-framework.rst
+F: drivers/net/ethernet/oa_tc6.c
+F: include/linux/oa_tc6.h
+
OPEN FIRMWARE AND FLATTENED DEVICE TREE
OPENCOMPUTE PTP CLOCK DRIVER
-M: Vadim Fedorenko <vadfed@linux.dev>
+M: Vadim Fedorenko <vadim.fedorenko@linux.dev>
S: Maintained
F: drivers/ptp/ptp_ocp.c
S: Supported
-F: Documentation/devicetree/bindings/pci/altera-pcie.txt
+F: Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml
F: drivers/pci/controller/pcie-altera.c
PCI DRIVER FOR APPLIEDMICRO XGENE
S: Maintained
F: drivers/pci/controller/dwc/*layerscape*
S: Maintained
F: Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml
F: Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml
S: Supported
-F: Documentation/devicetree/bindings/pci/altera-pcie-msi.txt
+F: Documentation/devicetree/bindings/pci/altr,msi-controller.yaml
F: drivers/pci/controller/pcie-altera-msi.c
PCI MSI DRIVER FOR APPLIEDMICRO XGENE
PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS
S: Supported
S: Maintained
+F: drivers/pci/controller/dwc/pcie-qcom-common.c
F: drivers/pci/controller/dwc/pcie-qcom.c
PCIE DRIVER FOR ROCKCHIP
S: Maintained
F: Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+F: drivers/pci/controller/dwc/pcie-qcom-common.c
F: drivers/pci/controller/dwc/pcie-qcom-ep.c
PCMCIA SUBSYSTEM
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git
+F: Documentation/driver-api/pwrseq.rst
F: drivers/power/sequencing/
F: include/linux/pwrseq/
PROC SYSCTL
S: Maintained
S: Maintained
F: Documentation/devicetree/bindings/net/pse-pd/
F: drivers/net/pse-pd/
+F: net/ethtool/pse-pd.c
PSTORE FILESYSTEM
QCOM AUDIO (ASoC) DRIVERS
S: Supported
S: Maintained
F: Documentation/admin-guide/media/qcom_camss.rst
-F: Documentation/devicetree/bindings/media/*camss*
+F: Documentation/devicetree/bindings/media/qcom,*camss*
F: drivers/media/platform/qcom/camss/
QUALCOMM CLOCK DRIVERS
QUALCOMM CLOUD AI (QAIC) DRIVER
S: Supported
QUALCOMM CORE POWER REDUCTION (CPR) AVS DRIVER
-M: Konrad Dybcio <konrad.dybcio@linaro.org>
+M: Konrad Dybcio <konradybcio@kernel.org>
S: Maintained
S: Maintained
F: Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
F: drivers/soc/qcom/icc-bwmon.c
+F: drivers/soc/qcom/trace_icc-bwmon.h
QUALCOMM IOMMU
W: https://oss.oracle.com/projects/rds/
F: Documentation/networking/rds.rst
F: net/rds/
+F: tools/testing/selftests/net/rds/
RDT - RESOURCE ALLOCATION
F: drivers/hid/hid-roccat*
F: include/linux/hid-roccat*
+ROCKCHIP CAN-FD DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml
+F: drivers/net/can/rockchip/
+
ROCKCHIP CRYPTO DRIVERS
F: drivers/media/platform/rockchip/rkisp1
F: include/uapi/linux/rkisp1-config.h
+ROCKCHIP RK3568 RANDOM NUMBER GENERATOR SUPPORT
+S: Maintained
+F: Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml
+F: drivers/char/hw_random/rockchip-rng.c
+
ROCKCHIP RASTER 2D GRAPHIC ACCELERATION UNIT DRIVER
F: drivers/power/supply/bd99954-charger.c
F: drivers/power/supply/bd99954-charger.h
+ROHM BH1745 COLOUR SENSOR
+S: Maintained
+F: drivers/iio/light/bh1745.c
+
ROHM BH1750 AMBIENT LIGHT SENSOR DRIVER
S: Maintained
F: Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-de2-rotate.yaml
F: drivers/media/platform/sunxi/sun8i-rotate/
+RPMB SUBSYSTEM
+S: Supported
+F: drivers/misc/rpmb-core.c
+F: include/linux/rpmb.h
+
RPMSG TTY DRIVER
S: Maintained
F: drivers/tty/rpmsg_tty.c
+RTASE ETHERNET DRIVER
+S: Maintained
+F: drivers/net/ethernet/realtek/rtase/
+
RTL2830 MEDIA DRIVER
S: Orphan
RUST
-R: Andreas Hindborg <a.hindborg@samsung.com>
+R: Andreas Hindborg <a.hindborg@kernel.org>
S: Supported
W: https://rust-for-linux.com
F: Documentation/devicetree/bindings/sound/samsung*
F: sound/soc/samsung/
+SAMSUNG EXYNOS850 SoC SUPPORT
+S: Maintained
+F: Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml
+F: arch/arm64/boot/dts/exynos/exynos850*
+F: drivers/clk/samsung/clk-exynos850.c
+F: include/dt-bindings/clock/exynos850.h
+
SAMSUNG EXYNOS PSEUDO RANDOM NUMBER GENERATOR (RNG) DRIVER
F: include/uapi/linux/sched.h
F: kernel/sched/
+SCHEDULER - SCHED_EXT
+S: Maintained
+W: https://github.com/sched-ext/scx
+T: git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git
+F: include/linux/sched/ext.h
+F: kernel/sched/ext.h
+F: kernel/sched/ext.c
+F: tools/sched_ext/
+F: tools/testing/selftests/sched_ext
+
SCIOSENSE ENS160 MULTI-GAS SENSOR DRIVER
S: Maintained
F: drivers/scsi/
F: drivers/ufs/
F: include/scsi/
+F: include/uapi/scsi/
SCSI TAPE DRIVER
F: Documentation/devicetree/bindings/iio/chemical/sensirion,scd4x.yaml
F: drivers/iio/chemical/scd4x.c
+SENSIRION SDP500 DIFFERENTIAL PRESSURE SENSOR DRIVER
+S: Maintained
+F: Documentation/devicetree/bindings/iio/pressure/sensirion,sdp500.yaml
+F: drivers/iio/pressure/sdp500.c
+
SENSIRION SGP40 GAS SENSOR DRIVER
S: Maintained
S: Maintained
F: Documentation/networking/timestamping.rst
+F: include/linux/net_tstamp.h
F: include/uapi/linux/net_tstamp.h
F: tools/testing/selftests/net/so_txtime.c
F: tools/sound/dapm-graph
SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS
S: Supported
W: https://github.com/thesofproject/linux/
SOUNDWIRE SUBSYSTEM
-R: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
+R: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
S: Supported
F: include/trace/events/spmi.h
SPU FILE SYSTEM
-S: Supported
-W: http://www.ibm.com/developerworks/power/cell/
+S: Orphan
F: Documentation/filesystems/spufs/spufs.rst
F: arch/powerpc/platforms/cell/spufs/
S: Maintained
+F: Documentation/ABI/testing/sysfs-class-tee
F: Documentation/driver-api/tee.rst
F: Documentation/tee/
F: Documentation/userspace-api/tee.rst
S: Supported
+F: drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c
F: drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c
F: drivers/iommu/tegra*
F: Documentation/devicetree/bindings/sound/ti,tas2562.yaml
F: Documentation/devicetree/bindings/sound/ti,tas2770.yaml
F: Documentation/devicetree/bindings/sound/ti,tas27xx.yaml
+F: Documentation/devicetree/bindings/sound/ti,tpa6130a2.yaml
F: Documentation/devicetree/bindings/sound/ti,pcm1681.yaml
F: Documentation/devicetree/bindings/sound/ti,pcm3168a.yaml
F: Documentation/devicetree/bindings/sound/ti,tlv320*.yaml
F: Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml
-F: Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
-F: Documentation/devicetree/bindings/sound/tpa6130a2.txt
F: include/sound/tas2*.h
F: include/sound/tlv320*.h
F: include/sound/tpa6130a2-plat.h
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git
F: Documentation/devicetree/bindings/tpm/
F: drivers/char/tpm/
+F: tools/testing/selftests/tpm2/
TPS546D24 DRIVER
S: Supported
W: https://www.tq-group.com/en/products/tq-embedded/
-F: arch/arm/boot/dts/imx*mba*.dts*
-F: arch/arm/boot/dts/imx*tqma*.dts*
-F: arch/arm/boot/dts/mba*.dtsi
+F: arch/arm/boot/dts/nxp/imx/*mba*.dts*
+F: arch/arm/boot/dts/nxp/imx/*tqma*.dts*
F: arch/arm64/boot/dts/freescale/fsl-*tqml*.dts*
F: arch/arm64/boot/dts/freescale/imx*mba*.dts*
F: arch/arm64/boot/dts/freescale/imx*tqma*.dts*
U-BOOT ENVIRONMENT VARIABLES
S: Maintained
-F: Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
+F: Documentation/devicetree/bindings/nvmem/layouts/u-boot,env.yaml
+F: drivers/nvmem/layouts/u-boot-env.c
F: drivers/nvmem/u-boot-env.c
UACCE ACCELERATOR FRAMEWORK
F: include/linux/cdrom.h
F: include/uapi/linux/cdrom.h
+UNION-FIND
+S: Maintained
+F: Documentation/core-api/union_find.rst
+F: Documentation/translations/zh_CN/core-api/union_find.rst
+F: include/linux/union_find.h
+F: lib/union_find.c
+
UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER
F: include/uapi/linux/uvcvideo.h
USB WEBCAM GADGET
-S: Maintained
+S: Orphan
F: drivers/usb/gadget/function/*uvc*
F: drivers/usb/gadget/legacy/webcam.c
F: include/uapi/linux/usb/g_uvc.h
F: include/linux/virtio*.h
F: include/linux/vringh.h
F: include/uapi/linux/virtio_*.h
+F: net/vmw_vsock/virtio*
F: tools/virtio/
F: tools/testing/selftests/drivers/net/virtio_net/
F: net/vmw_vsock/
F: tools/testing/vsock/
+VMA
+S: Maintained
+W: https://www.linux-mm.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
+F: mm/vma.c
+F: mm/vma.h
+F: mm/vma_internal.h
+F: tools/testing/vma/
+
VMALLOC
F: Documentation/arch/x86/
F: Documentation/devicetree/bindings/x86/
F: arch/x86/
+F: tools/testing/selftests/x86
+
+X86 CPUID DATABASE
+S: Maintained
+W: https://x86-cpuid.org
+F: tools/arch/x86/kcpuid/cpuid.csv
X86 ENTRY CODE
F: drivers/spi/spi-xtensa-xtfpga.c
F: sound/soc/xtensa/xtfpga-i2s.c
+XZ EMBEDDED
+S: Maintained
+W: https://tukaani.org/xz/embedded.html
+B: https://github.com/tukaani-project/xz-embedded/issues
+C: irc://irc.libera.chat/tukaani
+F: Documentation/staging/xz.rst
+F: include/linux/decompress/unxz.h
+F: include/linux/xz.h
+F: lib/decompress_unxz.c
+F: lib/xz/
+F: scripts/xz_wrap.sh
+
YAM DRIVER FOR AX.25
YEALINK PHONE DRIVER
S: Maintained
F: Documentation/input/devices/yealink.rst
F: drivers/input/misc/yealink.*
#include <linux/delay.h>
#include <linux/dmaengine.h>
#include <linux/ktime.h>
+ #include <linux/mod_devicetable.h>
- #include <linux/platform_data/dma-ep93xx.h>
#include <linux/soc/cirrus/ep93xx.h>
#define DRV_NAME "ep93xx-ide"
};
struct ep93xx_pata_data {
- const struct platform_device *pdev;
+ struct platform_device *pdev;
void __iomem *ide_base;
struct ata_timing t;
bool iordy;
unsigned long udma_out_phys;
struct dma_chan *dma_rx_channel;
- struct ep93xx_dma_data dma_rx_data;
struct dma_chan *dma_tx_channel;
- struct ep93xx_dma_data dma_tx_data;
};
static void ep93xx_pata_clear_regs(void __iomem *base)
}
}
- static bool ep93xx_pata_dma_filter(struct dma_chan *chan, void *filter_param)
+ static int ep93xx_pata_dma_init(struct ep93xx_pata_data *drv_data)
{
- if (ep93xx_dma_chan_is_m2p(chan))
- return false;
-
- chan->private = filter_param;
- return true;
- }
-
- static void ep93xx_pata_dma_init(struct ep93xx_pata_data *drv_data)
- {
- const struct platform_device *pdev = drv_data->pdev;
+ struct platform_device *pdev = drv_data->pdev;
+ struct device *dev = &pdev->dev;
dma_cap_mask_t mask;
struct dma_slave_config conf;
+ int ret;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
* to request only one channel, and reprogram it's direction at
* start of new transfer.
*/
- drv_data->dma_rx_data.port = EP93XX_DMA_IDE;
- drv_data->dma_rx_data.direction = DMA_DEV_TO_MEM;
- drv_data->dma_rx_data.name = "ep93xx-pata-rx";
- drv_data->dma_rx_channel = dma_request_channel(mask,
- ep93xx_pata_dma_filter, &drv_data->dma_rx_data);
- if (!drv_data->dma_rx_channel)
- return;
-
- drv_data->dma_tx_data.port = EP93XX_DMA_IDE;
- drv_data->dma_tx_data.direction = DMA_MEM_TO_DEV;
- drv_data->dma_tx_data.name = "ep93xx-pata-tx";
- drv_data->dma_tx_channel = dma_request_channel(mask,
- ep93xx_pata_dma_filter, &drv_data->dma_tx_data);
- if (!drv_data->dma_tx_channel) {
- dma_release_channel(drv_data->dma_rx_channel);
- return;
+ drv_data->dma_rx_channel = dma_request_chan(dev, "rx");
+ if (IS_ERR(drv_data->dma_rx_channel))
+ return dev_err_probe(dev, PTR_ERR(drv_data->dma_rx_channel),
+ "rx DMA setup failed\n");
+
+ drv_data->dma_tx_channel = dma_request_chan(&pdev->dev, "tx");
+ if (IS_ERR(drv_data->dma_tx_channel)) {
+ ret = dev_err_probe(dev, PTR_ERR(drv_data->dma_tx_channel),
+ "tx DMA setup failed\n");
+ goto fail_release_rx;
}
/* Configure receive channel direction and source address */
conf.direction = DMA_DEV_TO_MEM;
conf.src_addr = drv_data->udma_in_phys;
conf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
- if (dmaengine_slave_config(drv_data->dma_rx_channel, &conf)) {
- dev_err(&pdev->dev, "failed to configure rx dma channel\n");
- ep93xx_pata_release_dma(drv_data);
- return;
+ ret = dmaengine_slave_config(drv_data->dma_rx_channel, &conf);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to configure rx dma channel");
+ goto fail_release_dma;
}
/* Configure transmit channel direction and destination address */
conf.direction = DMA_MEM_TO_DEV;
conf.dst_addr = drv_data->udma_out_phys;
conf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
- if (dmaengine_slave_config(drv_data->dma_tx_channel, &conf)) {
- dev_err(&pdev->dev, "failed to configure tx dma channel\n");
- ep93xx_pata_release_dma(drv_data);
+ ret = dmaengine_slave_config(drv_data->dma_tx_channel, &conf);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to configure tx dma channel");
+ goto fail_release_dma;
}
+
+ return 0;
+
+ fail_release_rx:
+ dma_release_channel(drv_data->dma_rx_channel);
+ fail_release_dma:
+ ep93xx_pata_release_dma(drv_data);
+
+ return ret;
}
static void ep93xx_pata_dma_start(struct ata_queued_cmd *qc)
static struct ata_port_operations ep93xx_pata_port_ops = {
.inherits = &ata_bmdma_port_ops,
- .qc_prep = ata_noop_qc_prep,
-
.softreset = ep93xx_pata_softreset,
.hardreset = ATA_OP_NULL,
void __iomem *ide_base;
int err;
- err = ep93xx_ide_acquire_gpio(pdev);
- if (err)
- return err;
-
/* INT[3] (IRQ_EP93XX_EXT3) line connected as pull down */
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- err = irq;
- goto err_rel_gpio;
- }
+ if (irq < 0)
+ return irq;
ide_base = devm_platform_get_and_ioremap_resource(pdev, 0, &mem_res);
- if (IS_ERR(ide_base)) {
- err = PTR_ERR(ide_base);
- goto err_rel_gpio;
- }
+ if (IS_ERR(ide_base))
+ return PTR_ERR(ide_base);
drv_data = devm_kzalloc(&pdev->dev, sizeof(*drv_data), GFP_KERNEL);
- if (!drv_data) {
- err = -ENOMEM;
- goto err_rel_gpio;
- }
+ if (!drv_data)
+ return -ENOMEM;
drv_data->pdev = pdev;
drv_data->ide_base = ide_base;
drv_data->udma_in_phys = mem_res->start + IDEUDMADATAIN;
drv_data->udma_out_phys = mem_res->start + IDEUDMADATAOUT;
- ep93xx_pata_dma_init(drv_data);
+ err = ep93xx_pata_dma_init(drv_data);
+ if (err)
+ return err;
/* allocate host */
host = ata_host_alloc(&pdev->dev, 1);
err_rel_dma:
ep93xx_pata_release_dma(drv_data);
- err_rel_gpio:
- ep93xx_ide_release_gpio(pdev);
return err;
}
ata_host_detach(host);
ep93xx_pata_release_dma(drv_data);
ep93xx_pata_clear_regs(drv_data->ide_base);
- ep93xx_ide_release_gpio(pdev);
}
+ static const struct of_device_id ep93xx_pata_of_ids[] = {
+ { .compatible = "cirrus,ep9312-pata" },
+ { /* sentinel */ }
+ };
+ MODULE_DEVICE_TABLE(of, ep93xx_pata_of_ids);
+
static struct platform_driver ep93xx_pata_platform_driver = {
.driver = {
.name = DRV_NAME,
+ .of_match_table = ep93xx_pata_of_ids,
},
.probe = ep93xx_pata_probe,
.remove_new = ep93xx_pata_remove,
#include <linux/clk.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+ #include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
+ #include <linux/of_dma.h>
+ #include <linux/overflow.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
- #include <linux/platform_data/dma-ep93xx.h>
-
#include "dmaengine.h"
/* M2P registers */
#define DMA_MAX_CHAN_BYTES 0xffff
#define DMA_MAX_CHAN_DESCRIPTORS 32
+ /*
+ * M2P channels.
+ *
+ * Note that these values are also directly used for setting the PPALLOC
+ * register.
+ */
+ #define EP93XX_DMA_I2S1 0
+ #define EP93XX_DMA_I2S2 1
+ #define EP93XX_DMA_AAC1 2
+ #define EP93XX_DMA_AAC2 3
+ #define EP93XX_DMA_AAC3 4
+ #define EP93XX_DMA_I2S3 5
+ #define EP93XX_DMA_UART1 6
+ #define EP93XX_DMA_UART2 7
+ #define EP93XX_DMA_UART3 8
+ #define EP93XX_DMA_IRDA 9
+ /* M2M channels */
+ #define EP93XX_DMA_SSP 10
+ #define EP93XX_DMA_IDE 11
+
+ enum ep93xx_dma_type {
+ M2P_DMA,
+ M2M_DMA,
+ };
+
struct ep93xx_dma_engine;
static int ep93xx_dma_slave_config_write(struct dma_chan *chan,
enum dma_transfer_direction dir,
struct list_head node;
};
+ struct ep93xx_dma_chan_cfg {
+ u8 port;
+ enum dma_transfer_direction dir;
+ };
+
/**
* struct ep93xx_dma_chan - an EP93xx DMA M2P/M2M channel
* @chan: dmaengine API channel
* @edma: pointer to the engine device
* @regs: memory mapped registers
+ * @dma_cfg: channel number, direction
* @irq: interrupt number of the channel
* @clk: clock used by this channel
* @tasklet: channel specific tasklet used for callbacks
* descriptor in the chain. When a descriptor is moved to the @active queue,
* the first and chained descriptors are flattened into a single list.
*
- * @chan.private holds pointer to &struct ep93xx_dma_data which contains
- * necessary channel configuration information. For memcpy channels this must
- * be %NULL.
*/
struct ep93xx_dma_chan {
struct dma_chan chan;
const struct ep93xx_dma_engine *edma;
void __iomem *regs;
+ struct ep93xx_dma_chan_cfg dma_cfg;
int irq;
struct clk *clk;
struct tasklet_struct tasklet;
struct ep93xx_dma_chan channels[] __counted_by(num_channels);
};
+ struct ep93xx_edma_data {
+ u32 id;
+ size_t num_channels;
+ };
+
static inline struct device *chan2dev(struct ep93xx_dma_chan *edmac)
{
return &edmac->chan.dev->device;
return container_of(chan, struct ep93xx_dma_chan, chan);
}
+ static inline bool ep93xx_dma_chan_is_m2p(struct dma_chan *chan)
+ {
+ if (device_is_compatible(chan->device->dev, "cirrus,ep9301-dma-m2p"))
+ return true;
+
+ return !strcmp(dev_name(chan->device->dev), "ep93xx-dma-m2p");
+ }
+
+ /*
+ * ep93xx_dma_chan_direction - returns direction the channel can be used
+ *
+ * This function can be used in filter functions to find out whether the
+ * channel supports given DMA direction. Only M2P channels have such
+ * limitation, for M2M channels the direction is configurable.
+ */
+ static inline enum dma_transfer_direction
+ ep93xx_dma_chan_direction(struct dma_chan *chan)
+ {
+ if (!ep93xx_dma_chan_is_m2p(chan))
+ return DMA_TRANS_NONE;
+
+ /* even channels are for TX, odd for RX */
+ return (chan->chan_id % 2 == 0) ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
+ }
+
/**
* ep93xx_dma_set_active - set new active descriptor chain
* @edmac: channel
static int m2p_hw_setup(struct ep93xx_dma_chan *edmac)
{
- struct ep93xx_dma_data *data = edmac->chan.private;
u32 control;
- writel(data->port & 0xf, edmac->regs + M2P_PPALLOC);
+ writel(edmac->dma_cfg.port & 0xf, edmac->regs + M2P_PPALLOC);
control = M2P_CONTROL_CH_ERROR_INT | M2P_CONTROL_ICE
| M2P_CONTROL_ENABLE;
static int m2m_hw_setup(struct ep93xx_dma_chan *edmac)
{
- const struct ep93xx_dma_data *data = edmac->chan.private;
u32 control = 0;
- if (!data) {
+ if (edmac->dma_cfg.dir == DMA_MEM_TO_MEM) {
/* This is memcpy channel, nothing to configure */
writel(control, edmac->regs + M2M_CONTROL);
return 0;
}
- switch (data->port) {
+ switch (edmac->dma_cfg.port) {
case EP93XX_DMA_SSP:
/*
* This was found via experimenting - anything less than 5
control = (5 << M2M_CONTROL_PWSC_SHIFT);
control |= M2M_CONTROL_NO_HDSK;
- if (data->direction == DMA_MEM_TO_DEV) {
+ if (edmac->dma_cfg.dir == DMA_MEM_TO_DEV) {
control |= M2M_CONTROL_DAH;
control |= M2M_CONTROL_TM_TX;
control |= M2M_CONTROL_RSS_SSPTX;
* This IDE part is totally untested. Values below are taken
* from the EP93xx Users's Guide and might not be correct.
*/
- if (data->direction == DMA_MEM_TO_DEV) {
+ if (edmac->dma_cfg.dir == DMA_MEM_TO_DEV) {
/* Worst case from the UG */
control = (3 << M2M_CONTROL_PWSC_SHIFT);
control |= M2M_CONTROL_DAH;
static void m2m_hw_submit(struct ep93xx_dma_chan *edmac)
{
- struct ep93xx_dma_data *data = edmac->chan.private;
u32 control = readl(edmac->regs + M2M_CONTROL);
/*
control |= M2M_CONTROL_ENABLE;
writel(control, edmac->regs + M2M_CONTROL);
- if (!data) {
+ if (edmac->dma_cfg.dir == DMA_MEM_TO_MEM) {
/*
* For memcpy channels the software trigger must be asserted
* in order to start the memcpy operation.
*/
if (ep93xx_dma_advance_active(edmac)) {
m2m_fill_desc(edmac);
- if (done && !edmac->chan.private) {
+ if (done && edmac->dma_cfg.dir == DMA_MEM_TO_MEM) {
/* Software trigger for memcpy channel */
control = readl(edmac->regs + M2M_CONTROL);
control |= M2M_CONTROL_START;
desc = container_of(tx, struct ep93xx_dma_desc, txd);
/*
- * If nothing is currently prosessed, we push this descriptor
+ * If nothing is currently processed, we push this descriptor
* directly to the hardware. Otherwise we put the descriptor
* to the pending queue.
*/
static int ep93xx_dma_alloc_chan_resources(struct dma_chan *chan)
{
struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
- struct ep93xx_dma_data *data = chan->private;
const char *name = dma_chan_name(chan);
int ret, i;
/* Sanity check the channel parameters */
if (!edmac->edma->m2m) {
- if (!data)
- return -EINVAL;
- if (data->port < EP93XX_DMA_I2S1 ||
- data->port > EP93XX_DMA_IRDA)
+ if (edmac->dma_cfg.port < EP93XX_DMA_I2S1 ||
+ edmac->dma_cfg.port > EP93XX_DMA_IRDA)
return -EINVAL;
- if (data->direction != ep93xx_dma_chan_direction(chan))
+ if (edmac->dma_cfg.dir != ep93xx_dma_chan_direction(chan))
return -EINVAL;
} else {
- if (data) {
- switch (data->port) {
+ if (edmac->dma_cfg.dir != DMA_MEM_TO_MEM) {
+ switch (edmac->dma_cfg.port) {
case EP93XX_DMA_SSP:
case EP93XX_DMA_IDE:
- if (!is_slave_direction(data->direction))
+ if (!is_slave_direction(edmac->dma_cfg.dir))
return -EINVAL;
break;
default:
}
}
- if (data && data->name)
- name = data->name;
-
ret = clk_prepare_enable(edmac->clk);
if (ret)
return ret;
* @chan: channel
* @sgl: list of buffers to transfer
* @sg_len: number of entries in @sgl
- * @dir: direction of tha DMA transfer
+ * @dir: direction of the DMA transfer
* @flags: flags for the descriptor
* @context: operation context (ignored)
*
ep93xx_dma_advance_work(to_ep93xx_dma_chan(chan));
}
- static int __init ep93xx_dma_probe(struct platform_device *pdev)
+ static struct ep93xx_dma_engine *ep93xx_dma_of_probe(struct platform_device *pdev)
{
- struct ep93xx_dma_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ const struct ep93xx_edma_data *data;
+ struct device *dev = &pdev->dev;
struct ep93xx_dma_engine *edma;
struct dma_device *dma_dev;
- int ret, i;
+ char dma_clk_name[5];
+ int i;
- edma = kzalloc(struct_size(edma, channels, pdata->num_channels), GFP_KERNEL);
+ data = device_get_match_data(dev);
+ if (!data)
+ return ERR_PTR(dev_err_probe(dev, -ENODEV, "No device match found\n"));
+
+ edma = devm_kzalloc(dev, struct_size(edma, channels, data->num_channels),
+ GFP_KERNEL);
if (!edma)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
+ edma->m2m = data->id;
+ edma->num_channels = data->num_channels;
dma_dev = &edma->dma_dev;
- edma->m2m = platform_get_device_id(pdev)->driver_data;
- edma->num_channels = pdata->num_channels;
INIT_LIST_HEAD(&dma_dev->channels);
- for (i = 0; i < pdata->num_channels; i++) {
- const struct ep93xx_dma_chan_data *cdata = &pdata->channels[i];
+ for (i = 0; i < edma->num_channels; i++) {
struct ep93xx_dma_chan *edmac = &edma->channels[i];
edmac->chan.device = dma_dev;
- edmac->regs = cdata->base;
- edmac->irq = cdata->irq;
+ edmac->regs = devm_platform_ioremap_resource(pdev, i);
+ if (IS_ERR(edmac->regs))
+ return edmac->regs;
+
+ edmac->irq = fwnode_irq_get(dev_fwnode(dev), i);
+ if (edmac->irq < 0)
+ return ERR_PTR(edmac->irq);
+
edmac->edma = edma;
- edmac->clk = clk_get(NULL, cdata->name);
+ if (edma->m2m)
+ snprintf(dma_clk_name, sizeof(dma_clk_name), "m2m%u", i);
+ else
+ snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i);
+
+ edmac->clk = devm_clk_get(dev, dma_clk_name);
if (IS_ERR(edmac->clk)) {
- dev_warn(&pdev->dev, "failed to get clock for %s\n",
- cdata->name);
- continue;
+ dev_err_probe(dev, PTR_ERR(edmac->clk),
+ "no %s clock found\n", dma_clk_name);
+ return ERR_CAST(edmac->clk);
}
spin_lock_init(&edmac->lock);
&dma_dev->channels);
}
+ return edma;
+ }
+
+ static bool ep93xx_m2p_dma_filter(struct dma_chan *chan, void *filter_param)
+ {
+ struct ep93xx_dma_chan *echan = to_ep93xx_dma_chan(chan);
+ struct ep93xx_dma_chan_cfg *cfg = filter_param;
+
+ if (cfg->dir != ep93xx_dma_chan_direction(chan))
+ return false;
+
+ echan->dma_cfg = *cfg;
+ return true;
+ }
+
+ static struct dma_chan *ep93xx_m2p_dma_of_xlate(struct of_phandle_args *dma_spec,
+ struct of_dma *ofdma)
+ {
+ struct ep93xx_dma_engine *edma = ofdma->of_dma_data;
+ dma_cap_mask_t mask = edma->dma_dev.cap_mask;
+ struct ep93xx_dma_chan_cfg dma_cfg;
+ u8 port = dma_spec->args[0];
+ u8 direction = dma_spec->args[1];
+
+ if (port > EP93XX_DMA_IRDA)
+ return NULL;
+
+ if (!is_slave_direction(direction))
+ return NULL;
+
+ dma_cfg.port = port;
+ dma_cfg.dir = direction;
+
+ return __dma_request_channel(&mask, ep93xx_m2p_dma_filter, &dma_cfg, ofdma->of_node);
+ }
+
+ static bool ep93xx_m2m_dma_filter(struct dma_chan *chan, void *filter_param)
+ {
+ struct ep93xx_dma_chan *echan = to_ep93xx_dma_chan(chan);
+ struct ep93xx_dma_chan_cfg *cfg = filter_param;
+
+ echan->dma_cfg = *cfg;
+
+ return true;
+ }
+
+ static struct dma_chan *ep93xx_m2m_dma_of_xlate(struct of_phandle_args *dma_spec,
+ struct of_dma *ofdma)
+ {
+ struct ep93xx_dma_engine *edma = ofdma->of_dma_data;
+ dma_cap_mask_t mask = edma->dma_dev.cap_mask;
+ struct ep93xx_dma_chan_cfg dma_cfg;
+ u8 port = dma_spec->args[0];
+ u8 direction = dma_spec->args[1];
+
+ if (!is_slave_direction(direction))
+ return NULL;
+
+ switch (port) {
+ case EP93XX_DMA_SSP:
+ case EP93XX_DMA_IDE:
+ break;
+ default:
+ return NULL;
+ }
+
+ dma_cfg.port = port;
+ dma_cfg.dir = direction;
+
+ return __dma_request_channel(&mask, ep93xx_m2m_dma_filter, &dma_cfg, ofdma->of_node);
+ }
+
+ static int ep93xx_dma_probe(struct platform_device *pdev)
+ {
+ struct ep93xx_dma_engine *edma;
+ struct dma_device *dma_dev;
+ int ret;
+
+ edma = ep93xx_dma_of_probe(pdev);
+ if (IS_ERR(edma))
+ return PTR_ERR(edma);
+
+ dma_dev = &edma->dma_dev;
+
dma_cap_zero(dma_dev->cap_mask);
dma_cap_set(DMA_SLAVE, dma_dev->cap_mask);
dma_cap_set(DMA_CYCLIC, dma_dev->cap_mask);
}
ret = dma_async_device_register(dma_dev);
- if (unlikely(ret)) {
- for (i = 0; i < edma->num_channels; i++) {
- struct ep93xx_dma_chan *edmac = &edma->channels[i];
- if (!IS_ERR_OR_NULL(edmac->clk))
- clk_put(edmac->clk);
- }
- kfree(edma);
+ if (ret)
+ return ret;
+
+ if (edma->m2m) {
+ ret = of_dma_controller_register(pdev->dev.of_node, ep93xx_m2m_dma_of_xlate,
+ edma);
} else {
- dev_info(dma_dev->dev, "EP93xx M2%s DMA ready\n",
- edma->m2m ? "M" : "P");
+ ret = of_dma_controller_register(pdev->dev.of_node, ep93xx_m2p_dma_of_xlate,
+ edma);
}
+ if (ret)
+ goto err_dma_unregister;
+
+ dev_info(dma_dev->dev, "EP93xx M2%s DMA ready\n", edma->m2m ? "M" : "P");
+
+ return 0;
+
+ err_dma_unregister:
+ dma_async_device_unregister(dma_dev);
return ret;
}
+ static const struct ep93xx_edma_data edma_m2p = {
+ .id = M2P_DMA,
+ .num_channels = 10,
+ };
+
+ static const struct ep93xx_edma_data edma_m2m = {
+ .id = M2M_DMA,
+ .num_channels = 2,
+ };
+
+ static const struct of_device_id ep93xx_dma_of_ids[] = {
+ { .compatible = "cirrus,ep9301-dma-m2p", .data = &edma_m2p },
+ { .compatible = "cirrus,ep9301-dma-m2m", .data = &edma_m2m },
+ { /* sentinel */ }
+ };
+ MODULE_DEVICE_TABLE(of, ep93xx_dma_of_ids);
+
static const struct platform_device_id ep93xx_dma_driver_ids[] = {
{ "ep93xx-dma-m2p", 0 },
{ "ep93xx-dma-m2m", 1 },
static struct platform_driver ep93xx_dma_driver = {
.driver = {
.name = "ep93xx-dma",
+ .of_match_table = ep93xx_dma_of_ids,
},
.id_table = ep93xx_dma_driver_ids,
+ .probe = ep93xx_dma_probe,
};
- static int __init ep93xx_dma_module_init(void)
- {
- return platform_driver_probe(&ep93xx_dma_driver, ep93xx_dma_probe);
- }
- subsys_initcall(ep93xx_dma_module_init);
+ module_platform_driver(ep93xx_dma_driver);
MODULE_DESCRIPTION("EP93xx DMA driver");
projects / J-linux.git / commitdiff