Linux 6.1内核在ARM、RISC-V等处理器的更新一览

Arm updates in Linux 6.1

Allwinner
- A100 – DMA
- H6 – DMIC and GPU Devfreq
- New boards and devices – None this time around
Rockchip
- Power domain – Added Rockchip RK3588 and RV1126 drivers
- Pin control – Add driver for Rockchip RV1126
- MFD
  - Add support for Rockchip RV1126 and RK3588 to Syscon
  - Add support for Rockchip RK817 Battery Charger to RK808
- PHY – Rockchip rk3568 inno dsidphy, Rockchip rk356x csi-dphya
- SPI – Added support for Rockchip RK3128 and RK3588
- Networking – Rockchip RV1126 Gigabit Ethernet support
Amlogic
- ARM64 DT changes for Linux 6.1:
  - Add Bindings & DT for Beelink GT1 Ultimate (Amlogic S912) TV box
  - Remove invalid ‘enable-active-low’ on SM1 & G12A boards
  - Add Bindings & DT for the new JetHub D1p (Amlogic A113X) home automation controller
Samsung
- SoC drivers – Convert Samsung Exynos G-Scaler bindings to DT schema.
- Pinctrl
  - Minor fix in order of initializing pinctrl driver – GPIOs should be configured before registering gpiolib.
  - Final steps to deprecated bindings headers with register constants.
- Clock driver
  - Exynos7885: add FSYS, TREX and MFC clock controllers.
  - Exynos850: add IS and AUD (audio) clock controllers with bindings.
  - ExynosAutov9: correct clock IDs in bindings of Peric 0 and 1 clock controllers, due to duplicated entries; add few missing Peric 0/1 gates; correct register offsets of few Peric 0/1 clocks.
  - Minor code improvements
- DTS ARM changes
  - Fix polarity of pins:
    - enable GPIO of NFC chip in Exynos5433 TM2 boards,
    - vbus GPIO of EHCI in Exynos4412 Origen board.
  - Correct name of pin configuration nodes – redundant “pins” in the name (no functional impact).
- DTS ARM64 changes for Linux 6.1:
  - Add binding headers for several Exynos850 and ExynosAutov9 clocks.
  - ExynosAutov9: Add FSYS clock controller nodes, Document serial compatible (used in DTS).
  - Exynos850: Add Audio, IS, MFC clock controllers. Add IOMMU nodes.
  - Fix polarity of pins:
    - enable GPIO of NFC chip in Exynos5433 TM2 boards,
    - vbus GPIO of EHCI in Exynos4412 Origen board.
  - Correct name of pin configuration nodes – redundant “pins” in the name (no functional impact).
Qualcomm
- A new driver for Qualcomm LLCC/DDR bandwidth measurement
- Pinctrl
  - Qualcomm SM8450 and SC8280XP LPASS (low power audio subsystem) pin control support
  - Massive Qualcomm device tree binding cleanup, with more to come
- PHY – Qualcomm SC8280XP eDP & DP and USB3 UNI phy, Qualcomm SM6375 usb snps-femto-v2 bindings
- PCIe controller driver
  - Add support for SC8280XP and SA8540P host controllers and SM8450 endpoint controller.
  - Disable Master AXI clock on endpoint controllers to save power when link is idle or in L1.x.
  - Expose link state transition counts via debugfs to help debug issues with low-power states.
  - Add auto-loading module support.
- Clock driver
  - Added Display clks for Qualcomm SM6115, SM8450
  - Added GPU clks for Qualcomm SC8280XP
  - Added Qualcomm MSM8909 and SM6375 global and SMD RPM clk drivers
  - Qualcomm SM6115 and QCM2260 are moved to reuse PLL configuration
  - Qualcomm SDM660 SDCC1 moved to floor clk ops
  - Support for the APCS PLLs for Qualcomm IPQ8064, IPQ8074 and IPQ6018 was added/fixed
  - The Qualcomm MSM8996 CPU clocks are updated with support for ACD
  - Support for Qualcomm SDM670 GCC and RPMh clks was added
- Soundwire – Qualcomm driver updates to handle device0 status
- DMA engine – Added Qualcomm SM6350 GPI dma controller
- Power supply – Added Qualcomm PMK8350 PON support
- Added support for Qualcomm IPQ8064-v2.0, IPQ8062 and IPQ8065 are all variants of the IPQ8064 chip, with minimally different features.
- Arm DTS update:
  - Extends IPQ8064 support with the two variants IPQ8062 and IPQ8065.
  - MSM8974 and APQ8084 gained RPM stats support.
  - The Audio DSP remoteproc was added to MSM8226 and enabled for ASUS ZenWatch 2 and LG G Watch R.
  - MSM8660 gained one I2C and one SPI bus
  - APQ8060 Dragonboard got the TMA340 Touchscreen described.
  - A wide range of improvements is done throughout the DTS files to align with bindings, fix issues, and improve the structure of things.
- Arm64 DTS updates for Linux 6.1:
  - Samsung Galaxy S4 Mini Value Edition gains magnetometer support.
  - MSM8996-based Xiaomi devices gains descriptions of the LPG-based LEDs.
  - SA8295P – ADP problems arising from regulators being switched into low-power mode is worked around by removing this ability, for now.
  - SC7180 Trogdor – The onboard USB Hub on SC7180 is finally described and a few ADC- related updates are introduced.
  - SC7280 – Support for the CPU and LLC bwmon instances are introduced. Soundwire, audio codecs and sound introduced for a variety of boards. The onboard USB Hub Herobrine is described.
  - SC8280XP – The USB controllers are marked as wakeup-sources, to keep them powered during suspend. The CRD has HID devices marked as wakeup sources to enable resuming the system. The alternative touchpad is introduced on the Lenovo ThinkPad X13s.
  - SDM845 – Gains RPMh stats support and the LLCC BWMON is added.
  - SM6350 – Interconnect providers and GPI DMA is introduced.
  - A description of the PM7280b PMIC is added to Fairphone FP4 on SM7225.
  - Multi-MSI support added in the PCIe controller, meaning SM8250 gets all its MSI interrupts added.
  - UFS ICE and the second SDHCI controller are introduced on SM8450.
  - TCSR mutex syscon is replaced with the MMIO-based binding. TCSR nodes gained proper compatibles and halt syscon nodes are split out from the mutex ranges.
  - Added a range of fixes to align with DT bindings
- Arm defconfig updates
  - Enables command-db, ocmem, rpmh and rpmhpd drivers in the multi_v7_defconfig, used on SDX55, SDX65 and MSM8974.
  - For qcom_defconfig, rmtfs-mem, rpmpd, socinfo and qcom-stats are enables as they are used across MSM8974, MSM8226, MSM8916 and APQ8084.
- Arm64 defconfig updates
  - Core providers needed to boot SC8180X
  - Sound drivers for SC7180 and SC7280
  - Qualcomm EDP PHY, last-level cache controller driver, on-chip memory driver and the SPM driver.
MediaTek
- Clock driver
  - New clock drivers for MediaTek Helio X10 (MT6795)
  - Add resets for MediaTek MT8195 PCIe and USB
  - Changes to support GPU DVFS on MT8183, MT8192, MT8195
  - Shrink MT8192 clock driver by deduplicating clock parent lists
- MFD – Add support for MediaTek MT6370 subPMIC
- Add support for MediaTek MT6370 backlight and flashlight
- Memory controller – Add support for the mt8188 SMI memory controller
- Mediatek MT8188 SoC pin control support
- Added Mediatek MT8186 Chromebook/Tablet type SoC with two Cortex-A76 and six Cortex-A55 cores.

RISC-V modifications for Linux 6.1

Some of the changes for the RISC-V architecture include:

Improvements to the CPU topology subsystem, which fix some issues where RISC-V would report bad topology information.
The default NR_CPUS has increased to XLEN, and the maximum configurable value is 512.
The CD-ROM filesystems have been enabled in the defconfig.
Support for THP_SWAP has been added for rv64 systems.
A fix to correct the handling of write-only mappings
m{vetndor,arcd,imp}id is now in /proc/cpuinfo
Handful of cleanups and fixes throughout the tree
Allwinner – Added SRAM support to the D1 processor
Microchip – DT updates for the PolarFire SOC
SiFive
- A fix to add the missing PWM LEDs into the SiFive HiFive Unleashed device tree
- L2 cache controller support has been refactored to also support L3 caches
StarFive – Pinctrl – Create a subdirectory for StarFive drivers, rename “pinctrl-starfive” to “pinctrl-starfive-jh7100”