• Linux_6.15

Linux 6.15 changelog.

1. Prominent features

2. Core (various)

2.1. Audio

• usb-audio: enable support for Presonus Studio 1824c within 1810c file commit

• usb-audio: Add second USB ID for Jabra Evolve 65 headset commit

• Intel: avs: Add support for MalibouLake configuration (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• hda/realtek: Support mute LED on HP Laptop 15s-du3xxx commit

• hda/realtek: Add support for various HP Laptops using CS35L41 HDA commit

• ASoC:

  • amd: Add DMI quirk for ACP6X mic support commit

  • tegra: Add interconnect support commit

  • tas27{64,70}: improve support for Apple codec variants (cover), commit, commit, commit, commit, commit, commit, commit

  • rt712-sdca: Add FU05 playback switch control commit

  • Enable dmic for genio 700/510 evk (cover), commit, commit, commit, commit, commit, commit, commit, commit

  • hdmi-codec: add ELD information to procfs (cover), commit, commit

  • dmic: add regulator support (cover), commit, commit

  • dmic: Add DSD big endian format support commit

  • codecs: wsa883x: Implement temperature reading and hwmon commit, (cover)

  • cpcap: Implement jack headset detection (cover), commit, commit, commit

• codecs: Add aw88166 amplifier driver (cover), commit, commit

  • wm8904: Add DMIC and DRC support (cover), commit, commit, commit, commit, commit

  • amd: Add support for ACP7.0 & ACP7.1 platforms (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • SOF: ipc4: Add support for split firmware releases commit

  • SOF: Intel: Add support for ACE3+ mic privacy (cover), commit, commit, commit, commit, commit, commit, commit, commit

  • Refactor imx drivers and introduce support for imx95 (cover), commit, commit, commit, commit, commit, commit, commit

  • Some minor sdca preparation (cover), commit, commit, commit, commit, commit, commit

  • Add sdca register map support (cover), commit, commit, commit, commit

  • Add sdca disco parsing support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • Intel: boards: updates for 6.15 (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit

  • Intel: boards: updates for 6.14 (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • Intel: soc-acpi-intel-ptl-match: Add cs42l43 support commit

  • Intel: avs: Mute and multi-channel controls support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• soundwire:

  • Add static channel mapping between soundwire master and slave (cover), commit, commit, commit, commit

  • SoundWire/ASoC: add SDW BPT/BRA support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • amd: code improvements and new platform support (cover), commit, commit, commit, commit, commit, commit

2.2. Tablets, touch screens, keyboards, mouses

• Add goodix berlin-a series support (cover), commit, commit

• Add support for maxim integrated max77705 pmic (cover), commit, commit, commit, commit, commit, commit, commit

• Driver for apple z2 touchscreens. (cover), commit, commit, commit, commit

• HID

  • Sync with udev-hid-bpf (cover), commit, commit, commit, commit, commit, commit, commit

  • Touch bar driver for apple macs with t2 security chip (cover), commit, commit, commit, commit

  • hid-lg-g15: Use standard multicolor LED API commit

  • Hid_have_special_driver fixes for playstation driver (cover), commit, commit

  • Upgrade the generic pidff driver and add hid-universal-pidff (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

  • pidff: Compatibility update and new devices (cover), commit, commit, commit, commit, commit, commit

2.3. TV tuners, webcams, video capturers

• Add sdm670 camera subsystem (cover), commit, commit

• tc358746: improve calculation of the D-PHY timing registers commit, (cover)

• qcom: camss: Add sm8550 support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• rcar: Minor cleanups and improvements (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• cx23885: Add analog support for AVerMedia H789-C PCIe card commit

• rc: add keymap for Siemens Gigaset RC20 remote commit

• Added support for new mgb4 gmsl modules (cover), commit, commit

• vivid: Make CONFIG_FB optional (cover), commit, commit

• dw9719: Add DW9761 support commit

• uvcvideo: Implement UVC v1.5 ROI (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• Qualcomm iris video decoder driver (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• Add support for the edid eeodb (cover), commit, commit

• i2c: imx214: Miscellaneous cleanups and improvements (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

2.4. Universal Serial Bus

• Add eUSB2 descriptor and parsing in USB core commit

• Backport mctp over usb binding (cover), commit, commit

• Introduce dwc3 support for exynos7870 (cover), commit, commit

• dwc3: Avoid using reserved EPs (cover), commit, commit, commit, commit

• misc: onboard_dev: add vdda support for Microchip USB2514 commit

• serial: ftdi_sio: add support for Abacus Electrics Optical Probe commit

• serial: option: add Sierra Wireless EM9291 commit

• serial: simple: add OWON HDS200 series oscilloscope support commit

• typec: Add new driver for Parade PS8830 Type-C Retimer (cover), commit, commit

• typec: ucsi: Enable UCSI commands in debugfs commit

2.5. Serial Peripheral Interface (SPI)

• axi-spi-engine: add offload support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• mt65xx: add PM QoS support commit

• sophgo: add Sophgo SPI NOR controller driver (cover), commit, commit

• Add qpic spi nand driver (cover), commit, commit

• Add stm32mp25 spi nor support (cover), commit, commit

• stm32: Add OSPI driver commit

2.6. Watchdog

• lenovo_se30_wdt: Watchdog driver for Lenovo SE30 platform commit

2.7. Serial

• 8250: add driver for NI UARTs commit

• Add support for tegra uart trace controller (utc) client (cover), commit, commit

• amba-pl011: Implement nbcon console commit

• tty Cleanup no. 99 (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

2.8. CPU Frequency scaling

• Simplify boost handling (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• Add support for aarch64 amuv1-based average freq (cover), commit, commit, commit, commit

• ppc_cbe: Remove powerpc Cell driver commit

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

• power: Add support for maxim integrated max77705 pmic (cover), commit, commit, commit, commit, commit, commit, commit

• power: Enable power modes support for sama7d65 soc (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• regulator: Support runtime configuration of emergency hw_protection action (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• regulator: Introduce support for exynos7870's s2mpu05 pmic and its regulators (cover), commit, commit, commit

• regulator: Add new pmic pf9453 support (cover), commit, commit

2.10. Real Time Clock (RTC)

• Add support for max31331 rtc (cover), commit, commit

• pcf50633: Remove commit

2.11. Pin Controllers (pinctrl)

• samsung: add exynos2200 SoC pinctrl configuration (cover), commit, commit, commit

• sophgo: Add pinctrl support for SG2042 (cover), commit, commit, commit, commit, commit, commit, commit

• Add amlogic pinctrl driver (cover), commit, commit, commit, commit

• sunxi: Add Allwinner A523 support (cover), commit, commit, commit, commit, commit, commit, commit, commit

• ingenic: add support for x1600 SoC and MII and I2S for jz4730 (cover), commit, commit, commit, commit

• Add initial support for rk3528 (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• Add eint support for multiple addresses (cover), commit

• Introduce pin controller support for exynos7870 (cover), commit, commit, commit

2.12. Multi Media Card (MMC)

• Add rz/g3e sdhi support (cover), commit, commit

• Introduce dw mmc support for exynos7870 (cover), commit, commit, commit

2.13. Memory Technology Devices (MTD)

• mtd: spinand: Add read retry support commit

• spinand: add OTP support (cover), commit, commit, commit, commit, commit, commit

• spi-nor: winbond: Add support for flashes with several dies (cover), commit, commit

• spi-nor: macronix: add support for mx66{l2, u1}g45g commit

2.14. Industrial I/O (iio)

• magnetometer: add support for Si7210 (cover), commit, commit

• light: add al3000a als support (cover), commit, commit, commit

• imu: bmi270: add temperature channel commit

• Add support for avago/broadcom apds9160 (cover), commit, commit

• Adf4371 refin mode and doubler support (cover), commit, commit, commit

• Add support for adis16550 (cover), commit, commit, commit, commit, commit, commit

• axi-spi-engine: add offload support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• ad3552r-hs: add support for ad3541/42r (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit

• Add support for ad485x das family (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit

• accel: mc3230: add mount matrix, of match and mc3510c support (cover), commit, commit, commit, commit, commit

• ad7380: add SPI offload support (cover), commit, commit

• Support for ti ads7128 and ads7138 adcs (cover), commit, commit

• adc: ad4695: add oversampling support (cover), commit, commit

• adc: ad7173: add ad4111 openwire detection support (cover), commit, commit

• adc: ad4030: new driver for AD4030 and similar ADCs (cover), commit, commit, commit, commit, commit, commit

• Add adaq4381-4 support (cover), commit, commit, commit

• Add support for ad7191 (cover), commit, commit, commit

• Bmi270 data ready interrupt support (cover), commit, commit, commit

• adc: ad{4130,7124,7173}: A few fixes and ad7124 calibration (cover), commit, commit, commit, commit, commit, commit, commit, commit

• adc: ad7380: add alert support (cover), commit, commit, commit, commit, commit

2.15. Multi Function Devices (MFD)

• pcf50633: Remove remaining PCF50633 support commit

• pcf50633-adc: Remove unused driver commit

• cgbc-core: Add support for conga-SA8 commit

• Add support for maxim integrated max77705 pmic (cover), commit, commit, commit, commit, commit, commit, commit

• pcF50633-gpio: Remove unused driver commit

• cgbc: Add support for HWMON commit

• Add STM32MP25 timers support: MFD, PWM, IIO and counter drivers (cover), commit, commit, commit, commit

• Introduce support for exynos7870's s2mpu05 pmic and its regulators (cover), commit, commit, commit

• Add ti tps65214 & tps65215 mfd & regulator support (cover), commit, commit, commit, commit

• Remove sta2x11 core driver commit

2.16. Pulse-Width Modulation (PWM)

• Add pwm driver for sophgo sg2042 (cover), commit, commit, commit

2.17. Inter-Integrated Circuit (I2C + I3C)

• Add support for nuvoton npcm845 i3c controller (cover), commit, commit, commit, commit, commit

• Add support for setting mux for i2c lines (cover), commit, commit

• spacemit: add i2c support to K1 SoC (cover), commit, commit

2.18. Hardware monitoring (hwmon)

• lm90: Add support for NCT7716, NCT7717 and NCT7718 (cover), commit, commit

• Add support for ltm4673 μmodule regulator (cover), commit, commit

• k10temp: add support for cyan skillfish commit

• asus-ec-sensors: add prime x670e-pro wifi commit

• Enable sensors support for the congatec board controller (cover), commit

• Add support for lt7170 and lt7171 regulator (cover), commit, commit

• Add driver for htu31 (cover), commit, commit

• Add support for ina233 (cover), commit, commit

• Add of support for microchip emc2305 fan controller (cover), commit, commit, commit

• nct6683: add customer id for amd bc-250 commit

• dell-smm: increment the number of fans commit

• ltc2978: add support for lt717x commit

2.19. General Purpose I/O (gpio)

• Add synchronous fake device creation utility for gpio drivers (cover), commit, commit, commit

• pcf857x: add support for reset-gpios on (most) PCA967x (cover), commit, commit

• gpio: virtio: support multiple virtio-gpio controller instances commit

2.20. Leds

• Add support for maxim integrated max77705 pmic (cover), commit, commit, commit, commit, commit, commit, commit

• pca955x: Add HW blink support (cover), commit, commit, commit, commit

2.21. Hardware Random Number Generator (hwrng)

• Rk3588 hardware random number generator driver (cover), commit, commit, commit, commit, commit, commit, commit

2.22. Cryptography hardware acceleration

• Acomp - add virtual address and folio support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• eip93: Add Inside Secure SafeXcel EIP-93 crypto engine support commit

• ccp: Add support for PCI device 0x1134 commit

2.23. PCI

• Add pcie support for bcm2712 (cover), commit, commit, commit, commit, commit

• dwc: Add debugfs based Silicon Debug support for DWC commit

• dwc: Add debugfs based Error Injection support for DWC commit

• dwc: Add debugfs property to provide LTSSM status of the PCIe link commit

• perf/dwc_pcie: Add support for Rockchip SoCs commit

• Add support for the pci host bridge device-tree node creation. (cover), commit, commit, commit, commit

• qcom-ep: Enable EP mode support for SAR2130P commit

• Add pcie root port support for agilex family of chips (cover), commit, commit

• PCI/pwrctrl: Rework pwrctrl driver integration and add driver for PCI slot (cover), commit, commit, commit, commit, commit

• Add support for logging flit mode tlps (pcie6) (cover), commit, commit

• pci_endpoint_test: Add support for PCITEST_IRQ_TYPE_AUTO (cover), commit, commit, commit, commit, commit, commit

• PCI/DOE: Expose DOE features via sysfs commit

• Add support for amd mdb ip as root port (cover), commit, commit, commit

• Add support for versal net cpm5n root port controller (cover), commit, commit, commit

2.24. Non-Transparent Bridge (NTB)

• ntb_hw_amd: Add NTB PCI ID for new gen CPU commit

2.25. Clock

• Add nss clock controller support for ipq9574 (cover), commit, commit, commit, commit, commit

• Add rk3562 clock support (cover), commit, commit

• Add rpm clocks for sdm429 (cover), commit, commit

• Add smi larbs reset for mediatek mt8188 soc (cover), commit, commit

• Add support for gpucc, camcc and videocc on qualcomm qcs8300 platform (cover), commit, commit, commit, commit, commit

• Introduce support for exynos7870 clocks (cover), commit, commit

• Support clock and reset unit of rockchip rk3528 (cover), commit, commit, commit, commit, commit

• Update lpass audio clock driver for qcm6490 board (cover), commit, commit

• davinci: remove support for da830 commit

• qcom: Add support for multiple power-domains for a clock controller. (cover), commit, commit, commit, commit

• samsung: introduce Exynos2200 clock driver (cover), commit, commit, commit

• sunxi-ng: add A523 clock support (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

2.26. PHY ("physical layer" framework)

• Support exynosautov920 ufs phy driver (cover), commit, commit, commit

• phy-rockchip-samsung-hdptx: Add support for RK3576 commit

• rockchip: Add rk3562 naneng-combophy compatible commit, commit

• Mipi dsi phy for rk3588 (cover), commit, commit

• Add edp mode support for rockchip samsung hdptx phy (cover), commit, commit, commit, commit

• qcom: qmp-pcie: Add X1P42100 Gen4x4 PHY commit

2.27. EDAC (Error Detection And Correction)

• Add a error check scrub control feature commit

• Add a memory repair control feature commit

• Add edac support for intel raptor lake-s socs (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• Scrub: introduce generic EDAC RAS control feature driver + CXL/ACPI-RAS2 drivers (cover), commit, commit, commit, commit, commit, commit, commit, commit

2.28. Accel

• qaic: Initial AIC200 support (cover), commit, commit, commit, commit, commit, commit, commit

• amdxdna: Refactor hardware context destroy routine commit

• ivpu: Changes for 6.15 (cover), commit, commit, commit, commit, commit, commit

• ivpu: Changes for 6.15 2025-02-04 (cover), commit, commit, commit, commit, commit, commit

• ivpu: Expose NPU frequency into userspace (cover), commit, commit

2.29. Various

• mhi: host: pci_generic: Add support for SA8775P endpoint commit

• acpi/hmat / cxl: Add exclusive caching enumeration and RAS support (cover), commit, commit, commit, commit

• counter: Introduce the compare component (cover), commit, commit

• ti-eqep: add direction support (cover), commit, commit, commit, commit

• cxl/pci: Support Global Persistent Flush (GPF) commit

• Remove cxl driver (cover), commit

• cxl/pmem: Export dirty shutdown count via sysfs commit

• Add cxl feature commands support via fwctl (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit

• pull-request: can-next 2025-02-19 (cover), commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit, commit

• Dirty shutdown followups (cover), commit, commit

• microchip-tcb-capture: Add Capture, Compare, Overflow etc. events (cover), commit, commit

• Introduce fwctl subystem commit, commit, commit, commit, commit, commit, commit, commit

• me: add panther lake H DID commit

• mtk-smi: Add ostd setting for mt8192 commit

• mlxbf-bootctl: Support sysfs entries for RTC battery status commit

• Fwctl for amd/pensando core devices (cover), commit, commit, commit, commit, commit, commit

• Add sdca register map support (cover), commit, commit, commit, commit

• Fix rk3588 power domain problems (cover), commit, commit, commit, commit, commit, commit, commit, commit

• Add support to run/stall dsp via reset api (cover), commit, commit, commit, commit, commit, commit, commit

• Modem support for msm8226 (cover), commit, commit, commit, commit, commit, commit

• Add support for intel pps generator (cover), commit, commit, commit, commit

• Add sdca register map support (cover), commit, commit, commit, commit

• remoteproc: qcom: pas: Add SM8750 MPSS commit

• reset: imx: Add SCU reset driver for i.MX8QXP and i.MX8QM commit

• pmdomain: TH1520 SoC: Add AON firmware & power-domain support (cover), commit, commit, commit, commit

• imx8: add camera support (cover), commit, commit, commit

3. List of pull requests

• vfs mount API updates

• misc vfs updates

• vfs eventpoll updates

• vfs mount updates

• vfs pipe updates

• vfs pidfs updates

• vfs iomap updates

• vfs overlayfs updates

• vfs async dir updates

• vfs sysv removal

• vfs nsfs updates

• vfs mount namespace updates

• vfs pagesize updates

• vfs ceph updates

• vfs initramfs updates

• vfs afs updates

• vfs orangefs updates

• vfs file handling updates

• vfs rust updates

• tasklist_lock optimizations

• execve updates

• lib kunit selftest move

• hardening updates

• seccomp updates

• tiny pstore update

• slab updates

• workqueue update

• cgroup updates

• sched_ext updates

• nolibc updates

• kernel memory model updates

• stop-machine update

• documentation updates

• bitmap updates

• RCU updates

• locking updates

• objtool updates

• scheduler updates

• performance events updates

• core x86 updates

• x86 build updates

• x86 boot code updates

• x86/fpu updates

• x86 cleanups

• x86 SEV updates

• x86 platform updates

• irq updates

• MSI irq updates

• irq driver updates

• futex update

• timer core updates

• timer cleanups

• VDSO infrastructure updates

• arm64 updates

• x86 speculation mitigation updates

• x86 resource control updates

• EDAC updates

• RAS update

• m68k updates

• kvm updates

• xen updates

• hyperv updates

• ACPI updates

• power management updates

• thermal control updates

• lsm updates

• selinux updates

• smack updates

• fsverity updates

• fscrypt updates

• CRC updates

• regulator updates

• spi updates

• pwm updates

• hwmon updates

• gpio updates

• MMC updates

• pmdomain updates

• chrome platform updates

• auxdisplay updates

• media updates

• sound updates

• x86 platform drivers updates

• HID updates

• mtd updates

• MSI irq fix

• clocksource/event updates

• io_uring updates

• block updates

• ata updates

• SCSI updates

• iommu updates

• sysctl updates

• zstd updates

• networking updates

• SoC devicetree updates

• SoC driver updates

• SoC defconfig updates

• SoC arm platform updates

• asm-generic updates

• gfs2 updates

• erofs updates

• btrfs updates

• f2fs updates

• dlm updates

• xfs updates

• orangefs update

• jfs updates

• bcachefs updates

• ext4 updates

• tracing / sorttable updates

• ftrace updates

• latency tracing updates

• tracing updates

• tracing tooling updates

• ktest update

• Kselftest updates

• kunit updates

• printk updates

• livepatching updates

• probes updates

• powerpc updates

• m68knommu updates

• ipe update

• ima updates

• capabilities update

• landlock updates

• tpm updates

• io_uring zero-copy receive support

• io_uring epoll support

• more io_uring updates

• fbdev updates

• drm updates

• pci updates

• crypto updates

• fwctl subsystem

• rdma updates

• devicetree updates

• EFI updates

• s390 updates

• MIPS updates

• parisc updates

• regmap updates

• MFD updates

• LED updates

• backlight updates

• pin control updates

• hwspinlock updates

• remoteproc updates

• clk updates

• power supply and reset updates

• HSI update

• mailbox updates

• bpf updates

• bpf relisient spinlock support

• bpf try_alloc_pages() support

• misc locking fixes and updates

• misc x86 fixes and updates

• modules updates

• Rust updates

• perf tools updates

• ring-buffer updates

• nfsd updates

• smb client updates

• smb server updates

• exfat updates

• ext2, udf, and isofs updates

• more bcachefs updates

• MM updates

• non-MM updates

• driver core updatesk

• char / misc / IIO driver updates

• soundwire updates

• phy updates

• dmaengine updates

• i2c updates

• watchdog updates

• i3c updates

• more thermal control updates

• iommufd updates

• virtio updates

• VFIO updates

• kgdb updates

• more printk updates

• x86 TDX updates

• LoongArch updates

• UML updates

• more powerpc updates

• more ACPI updates

• ntfs3 updates

• fuse updates

• NFS client updates

• staging driver updates

• tty/serial driver updates

• USB / Thunderbolt updates

• Compute Express Link (CXL) updates

• libnvdimm updates

• device mapper updates

• firewire update

• more MM updates

• more non-MM updates

• ARM and clkdev updates

• RTC updates

• 9p updates

• more bcachefs updates

• more io_uring updates

• more block updates

• ring-buffer updates

• more SoC driver updates

• RISC-V updates

• more smb client updates

• more s390 updates

• input updates

• Kbuild updates

• sh updates

• more irq updates

• timer cleanups

• turbostat updates

4. Other news sites

• LWN's merge window part 1, part 2

• Phoronix Linux 6.15 features