• Linux_5.9

Linux 5.9 has not been released. While this changelog is completed, you can read about this release here:

• LWN's merge windows part 1, part 2

• Phoronix Linux 5.9 feature overview

or take a look at these pull requests:

• tpm updates

• btrfs updates

• fscrypt updates

• fsverity update

• crypto updates

• core block updates

• io_uring updates

• s390 updates

• unicore32 removal

• m68k updates

• arm64 and cross-arch updates

• header cleanup

• RCU updates

• locking updates

• objtool updates

• perf event updates

• scheduler updates

• x86/alternatives update

• x86 asm updates

• x86 boot updates

• x86 build updates

• x86 cleanups

• x86 debug fixlets

• x86 cpu updates

• x86 FPU selftest

• x86 microcode update

• x86 MSR filtering

• x86 mmm update

• x86 platform updates

• x86 timer update

• x86 RAS updates

• x86 platform driver updates

• ARM defconfig updates

• ARM SoC DT updates

• ARM SoC updates

• ARM SoC driver updates

• new ARM SoC support

• EDAC updates

• regulator updates

• spi updates

• regmap updates

• power management updates

• ACPI updates

• pstore update

• gcc plugin updates

• automatic variable initialization updates

• tasklets API update

• uninitialized_var() macro removal

• seccomp updates

• selinux updates

• audit updates

• execve updates

• thread updates

• fork cleanups

• checkpoint-restore updates

• close_range() implementation

• dma-mapping updates

• irq updates

• timer updates

• generic kernel entry/exit code

• x86 conversion to generic entry code

• x86 fsgsbase

• parisc updates

• printk updates

• documentation updates

• kunit updates

• kselftest updates

• block driver updates

• block stacking updates

• char/misc driver updates

• driver core updates

• USB/Thunderbolt updates

• GPIO updates

• Devicetree updates

• hwmon updates

• MMC updates

• hmm updates

• LED updates

• drm updates

• networking updates

• hyperv updates

• Xtensa updates

• arch/csky updates

• ARM updates

• MIPS upates

• smack updates

• livepatching updates

• coccinelle updates

• integrity updates

• sched/fifo updates

• KVM updates

• sound updates

• staging/IIO driver updates

• tty/serial updates

• rdma updates

• SCSI updates

• thermal updates

• cifs updates

• erofs updates

• ext2, udf, reiserfs, quota cleanups and minor fixes

• fsnotify updates

• iomap updates

• dlm updates

• ptrace regset updates

• init and set_fs() cleanups

• RISC-V updates

• m68knommu updates

• powerpc updates

• xen updates

• xfs updates

• misc memory management updates

• dmaengine updates

• mailbox updates

• media updates

• device mapper updates

• more power management updates

• fdpick coredump update

• clk updates

• tracing updates

• PCI updates

• misc vfs updates

• power supply and reset updates

• IPMI updates

• mtd updates

• pin control updates

• regset conversion fix

• NFS server updates

• Kbuild updates

• HID updates

• input updates

• JFFS2, UBI and UBIFS updates

• gfs2 updates

• f2fs updates

• locking updates

• ktest updates

• perf tools updates

• libnvdimm updayes

• rpmsg update

• remoteproc updates

• hwspinlock updates

• backlight updates

• iommu updates

• virtio updates

• zonefs update

• orangefs updates

• chrome platform updates

• more memory management updates

• VFIO updates

• watchdog updates

• more clk updates

• more KVM updates

• more parisc updates

• ceph updates

• RTC updates

• exfat updates

• more btrfs updates

• more s390 updates

• i2c updates

• Kconfig updates

• module updates

• more xen updates

• OpenRISC updates

• more timer updates

• timekeeping updates

• pwm updates

• more SCSI updates

• more memory management updates

• MFD updates

• one more power management update

• more ACPI updates

• NFS client updates

• 9p updates

• more perf tools updates

• arch/sh updates

1. Universal Serial Bus / Thunderbolt

• Add additional Device Classes to debug/usb/devices commit

• serial: console: add support for flow control commit

• serial: cp210x: add support for line-status events commit, commit, commit, commit, commit

• serial: ftdi_sio: add IDs for Xsens Mti USB converter commit

• serial: option: add support for SIM7070/SIM7080/SIM7090 modules commit

• serial: option: support dynamic Quectel USB compositions commit

• serial: qcserial: add EM7305 QDL product ID commit

• typec: intel_pmc_mux: Add support for USB4 commit

• xhci: define IDs for various ASMedia host controllers commit

• PHY: JZ4770: Add support for new Ingenic SoCs commit

• Improves the Thunderbolt/USB4 driver to support tree topologies that are now possible with USB4 devices commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• Thunderbolt: Allow userland to flush the image to hardware at runtime, and then allow authenticating the image at another time commit, commit

• Thunderbolt: Add retimer NVM upgrade support commit, commit, commit, commit, commit, commit

2. Serial Peripheral Interface (SPI)

• Add Renesas RPC-IF driver commit

• lantiq: Add support to Lightning Mountain SoC commit

• mediatek: add spi support for mt8192 IC commit

3. Watchdog

• dw_wdt: Take Baikal-T1 DW WDT peculiarities into account commit, commit, commit, commit, commit, commit, commit

• Support watchdog with longer timeout period commit, commit, commit, commit

• booke_wdt: Add common nowayout parameter driver commit

• softdog: Add module options soft_reboot_cmd and soft_active_on_boot commit

4. Serial

• imx: add imx earlycon driver commit

• 8250_pci: Add Realtek 816a and 816b commit

• stm32: Add RS485 RTS GPIO control commit

5. CPU Frequency scaling

• Allow to specify their CPUfreq governor of choice using the kernel command line (cpufreq.default_governor= parameter), instead of having to wait for the system to fully boot to userspace to switch using the sysfs interface commit, commit

• Add Tegra194 cpufreq driver commit

• brcmstb-avs-cpufreq: Support polling AVS firmware commit

• cpufreq: intel_pstate: Support setting a raw energy performance value in energy_performance_preference; also add an additional attribute energy_efficiency under /sys/devices/system/cpu/intel_pstate/ which allows to enable and disable the "Disable Energy Efficiency Optimization" bit commit, commit

• intel_pstate: Implement passive mode with HWP enabled commit

• make schedutil the default for arm and arm64 commit

6. Device Voltage and Frequency Scaling

• Add the delayed timer to devfreq framework in order to support the periodical polling mode without stop caused by CPU idle state. Can be set by users with "echo delayed > /sys/class/devfreq/10c20000.memory-controller/timer" commit, commit

7. Voltage, current regulators, power capping, power supply

• power: reset: add driver for LinkStation power off commit

• power: supply: bq25150 introduce the bq25150 commit

• power: supply: bq27xxx_battery: Add the BQ27Z561 Battery monitor commit

• power: supply: bq27xxx_battery: Add the BQ28z610 Battery monitor commit

• power: supply: sbs-battery: add PEC support commit

• power: supply: wilco_ec: Add long life charging mode commit

• Add support for voltage regulator on ChromeOS EC commit, commit, commit

• regulator

  • Add support for QCOM PMIC VBUS booster commit

  • qcom_smd: Add MP5496 regulators commit

  • Add support for SY8827N regulator commit

  • pca9450: add pca9450 pmic driver commit

  • fan53880: Add initial support commit

  • qcom: Add labibb driver commit

8. Real Time Clock (RTC)

• pcf2127: add pca2129 device id commit

• pcf2127: add alarm support commit

• Remove fb-puv3 driver commit

9. Pin Controllers (pinctrl)

• intel: Add Intel Emmitsburg pin controller support commit

• Add basic SoC Support for Mediatek MT6779 SoC commit, commit, commit, commit

• ocelot: Add Sparx5 SoC support commit

• qcom: ipq4019: add open drain support commit

• sh-pfc: pfc-r8a77951: Add R8A774E1 PFC support commit

• tigerlake: Add support for Tiger Lake-H commit

10. Multi Media Card (MMC)

• mediatek: add MT6779 MMC driver support commit

• mediatek: command queue support commit

• sdhci-msm: Add interconnect bandwidth scaling support commit

• sdhci_am654: Add Support for SR2.0 commit

11. Memory Technology Devices (MTD)

• spi-nor: intel-spi: Add support for Intel Emmitsburg SPI serial flash commit

• spi-nor: intel-spi: Add support for Intel Tiger Lake-H SPI serial flash commit

• spi-nor: macronix: Add support for MX25R1635F commit

• spi-nor: macronix: Add support for mx66u2g45g commit

• spi-nor: winbond: Add support for w25q64jvm commit

12. Industrial I/O (iio)

• Ingenic JZ47xx: Add touchscreen mode commit

• accel: bma400: add support for bma400 spi commit

• accel: mxc4005: add support for mxc6655 commit

• adc: Add support for PMIC7 ADC commit

• adc: rockchip_saradc: Add support iio buffers commit

• chemical: Add support for SCD30 sensor commit, commit, commit

• imu: new inv_icm42600 driver commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• imu: bmi160: added regulator and mount-matrix support commit, commit

• light: stk3310: add chip id for STK3311-X variant commit

13. Multi Function Devices (MFD)

• Add support for the Khadas System control Microcontroller commit

• da9063: Add support for latest DA silicon revision commit

• intel-lpss: Add Intel Emmitsburg PCH PCI IDs commit

• intel-lpss: Add Intel Tiger Lake PCH-H PCI IDs commit

• smsc-ece1099: Remove driver commit

14. Pulse-Width Modulation (PWM)

• Remove pwm-puv3 driver commit

15. Inter-Integrated Circuit (I2C + I3C)

• i801: Add support for Intel Emmitsburg PCH commit

• i801: Add support for Intel Tiger Lake PCH-H commit

• mediatek: Add apdma sync in i2c driver commit

• Remove i2c-puv3 driver commit

16. Hardware monitoring (hwmon)

• Add Corsair Commander Pro driver commit

• corsair-cpro: add reading pwm values commit

• pmbus/max20730: Add max20710 support commit

• sparx5: Add Sparx5 SoC temperature driver commit

17. General Purpose I/O (gpio)

• pca953x: Add support for the PCAL9535 commit

• pca9570: add GPO driver for PCA9570 commit

• zynq: Add Versal support commit

18. Leds

• Add a multi color LED framework. This framework presents clustered colored LEDs into an array and allows the user space to adjust the brightness of the cluster using a single file write. The individual colored LEDs intensities are controlled via a single file that is an array of LEDs commit, commit, commit, commit, commit, commit, commit

• Initial support for Turris Omnia LEDs commit

19. DMA engines

• Add the Xilinx DisplayPort DMA engine driver commit, commit

• Actions: Add support for S700 DMA engine commit

20. Hardware Random Number Generator (hwrng)

• ba431: add support for BA431 hwrng commit

21. Cryptography hardware acceleration

• ingenic: Add hardware RNG for Ingenic JZ4780 and X1000 commit

• Add driver for TI K3 SA2UL commit, commit, commit, commit

22. PCI

• Add Intel QuickAssist device IDs commit

• Allow P2PDMA on AMD Zen and newer CPUs commit

• cadence: Add MSI-X support to Endpoint driver commit

• j721e: Add TI J721E PCIe driver commit

• qcom: Add ipq8064 rev2 variant commit

• xilinx-cpm: Add Versal CPM Root Port driver commit

23. Clock

• Add support for enabling/disabling clocks from debugfs commit

• Ingenic: Add RTC related clocks for Ingenic SoCs commit

• actions: Add RMU and DMAC/GPIO clock support for Actions Semi S500 SoCs commit, commit, commit, commit, commit, commit

• at91: add sama7g5 clock support commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• bcm63xx-gate: add BCM6318 support commit

• bcm: Add BCM2711 DVP driver commit

• meson: g12a: Add support for NNA CLK source clocks commit

• qcom: Enable GPU for SM8150 and SM8250 commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• qcom: Clock for CPU scaling support for msm8996 commit, commit, commit

• qcom: Add ipq6018 apss clock controller commit

• qcom: lpass: Add support for LPASS clock controller for SC7180 commit

• qcom: Add SMD RPM support for MSM8936 commit, commit, commit, commit, commit, commit, commit

• qcom: smd: Add support for MSM8992/4 rpm clocks commit

• qcom: smd: Add support for SDM660 rpm clocks commit

• renesas: cpg-mssr: Add r8a774e1 support commit

• sparx5: Add Sparx5 SoC DPLL clock driver commit

• vc5: Allow Versaclock driver to support multiple instances commit

• vc5: Enable addition output configurations of the Versaclock commit

• clocksource: Add Low Power STM32 timers driver commit

• clocksource: Add CLINT timer driver commit

• clocksource: timer-atmel-tcb: Add sama5d2 support commit

• clocksource: ingenic: Add support for the Ingenic X1000 OST commit

24. PHY ("physical layer" framework)

• bcm63xx-usbh: Add BCM63xx USBH driver commit

• qcom-qmp: add V4 USB PHYs commit, commit, commit

• qcom-qmp: Add USB QMP PHY support for IPQ8074 commit

• qcom: remove ufs qmp phy driver commit

• qualcomm: add qcom ipq806x dwc usb phy driver commit

• samsung-ufs: add UFS PHY driver for samsung SoC commit

• zynqmp: Add PHY driver for the Xilinx ZynqMP Gigabit Transceiver commit

25. Memory Controller Drivers

• Add Renesas RPC-IF driver commit

• mtk-smi: Add basic support for MT6779 commit

• samsung: exynos5422-dmc: Add module param to control IRQ mode commit

• stm32-fmc2-ebi: add STM32 FMC2 EBI controller driver commit

• tegra: Add EMC scaling sequence code for Tegra210 commit

• tegra: Add EMC scaling support code for Tegra210 commit

26. Firmware Drivers

• arm_scmi: SCMI Notifications Core Support commit, commit, commit, commit, commit, commit, commit, commit, commit

• Extend svc and rsu drivers for new RSU features commit, commit, commit, commit

• smccc: Add ARCH_SOC_ID support commit

• tegra: Add support for in-band debug commit

• turris-mox-rwtm: support ECDSA signatures via debugfs commit

27. Remote Processors

• Add character device interface to remoteproc commit, commit

• Add coredump debugfs entry commit

• k3-dsp: Add a remoteproc driver of K3 C66x DSPs commit

• k3-dsp: Add support for C71x DSPs commit

• k3-dsp: Add support for L2RAM loading on C66x DSPs commit

• k3: Add TI-SCI processor control helper functions commit

• Add modem debug features commit, commit

28. Various

• bus: fsl-mc: Add ACPI support for fsl-mc commit

• counter: Add microchip TCB capture counter commit

• fpga: Add interrupt support to FPGA DFL drivers commit, commit, commit, commit, commit, commit, commit

• fpga: dfl: pci: add device id for Intel FPGA PAC N3000 commit

• iommu: NVIDIA ARM SMMU Implementation commit, commit, commit, commit, commit

• iommu/mediatek: Add mt6779 basic support commit

• iommu/renesas: Add support for r8a77961 commit

• irqchip/imx-intmux: Implement intmux runtime power management commit

• misc: mei: add device kind to sysfs commit

• misc: rtsx: Add support new chip rts5228 mmc: rtsx: Add support MMC_CAP2_NO_MMC commit

• nvmem: enables blowing of fuses on Qualcomm SoCs commit, commit, commit, commit

• nvmem: sc27xx: add sc2730 efuse support commit

• ocxl: control via sysfs whether the FPGA is reloaded on a link reset commit

• optee: register drivers on optee bus commit, commit, commit

• vdpasim: support batch updating commit

29. List of Pull Requests

30. Other news sites