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authorLinus Torvalds <torvalds@linux-foundation.org>2024-07-16 11:35:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-07-16 11:35:27 -0700
commitcc0f7c3f97bc6e888bf4be28a9da9dbd3735d2b4 (patch)
treeec328d17e2b9ddff11579e8759b9922b4e7a7f48 /Documentation/ABI
parent99298eb615debd41c1fccff05b163d0a29091904 (diff)
parent49e24c80d3c81c43e2a56101449e1eea32fcf292 (diff)
Merge tag 'soc-drivers-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann: "The updates to the mediatek, allwinner, ti, tegra, microchip, stm32, samsung, imx, zynq and amlogic platoforms are fairly small maintenance changes, either addressing minor mistakes or enabling additional hardware. The qualcomm platform changes add a number of features and are larger than the other ones combined, introducing the use of linux/cleanup.h across several drivers, adding support for Snapdragon X1E and other SoCs in platform drivers, a new "protection domain mapper" driver, and a "shared memory bridge" driver. The cznic "turris omnia" router based on Marvell Armada gets a platform driver that talks to the board specific microcontroller. The reset and cache subsystems get a few minor updates to SoC specific drivers, while the ff-a, scmi and optee firmware drivers get some code refactoring and new features" * tag 'soc-drivers-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (122 commits) firmware: turris-mox-rwtm: Initialize completion before mailbox firmware: turris-mox-rwtm: Fix checking return value of wait_for_completion_timeout() firmware: turris-mox-rwtm: Do not complete if there are no waiters MAINTAINERS: drop riscv list from cache controllers platform: cznic: turris-omnia-mcu: fix Kconfig dependencies bus: sunxi-rsb: Constify struct regmap_bus soc: sunxi: sram: Constify struct regmap_config platform: cznic: turris-omnia-mcu: Depend on WATCHDOG platform: cznic: turris-omnia-mcu: Depend on OF soc: samsung: exynos-pmu: add support for PMU_ALIVE non atomic registers arm64: stm32: enable scmi regulator for stm32 firmware: qcom: tzmem: blacklist more platforms for SHM Bridge soc: qcom: wcnss: simplify with cleanup.h soc: qcom: pdr: simplify with cleanup.h soc: qcom: ocmem: simplify with cleanup.h soc: qcom: mdt_loader: simplify with cleanup.h soc: qcom: llcc: simplify with cleanup.h firmware: qcom: tzmem: simplify returning pointer without cleanup soc: qcom: socinfo: Add PM6350 PMIC arm64: dts: renesas: rz-smarc: Replace fixed regulator for USB VBUS ...
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu113
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diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu b/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
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index 000000000000..307a55f599cb
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
@@ -0,0 +1,113 @@
+What: /sys/bus/i2c/devices/<mcu_device>/board_revision
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains board revision number.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %u.
+
+What: /sys/bus/i2c/devices/<mcu_device>/first_mac_address
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains device first MAC address. Each Turris Omnia is
+ allocated 3 MAC addresses. The two additional addresses are
+ computed from the first one by incrementing it.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %pM.
+
+What: /sys/bus/i2c/devices/<mcu_device>/front_button_mode
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RW) The front button on the Turris Omnia router can be
+ configured either to change the intensity of all the LEDs on the
+ front panel, or to send the press event to the CPU as an
+ interrupt.
+
+ This file switches between these two modes:
+ - "mcu" makes the button press event be handled by the MCU to
+ change the LEDs panel intensity.
+ - "cpu" makes the button press event be handled by the CPU.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/front_button_poweron
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RW) Newer versions of the microcontroller firmware of the
+ Turris Omnia router support powering off the router into true
+ low power mode. The router can be powered on by pressing the
+ front button.
+
+ This file configures whether front button power on is enabled.
+
+ This file is present only if the power off feature is supported
+ by the firmware.
+
+ Format: %i.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_features
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Newer versions of the microcontroller firmware report the
+ features they support. These can be read from this file. If the
+ MCU firmware is too old, this file reads 0x0.
+
+ Format: 0x%x.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_version_hash_application
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the version hash (commit hash) of the application
+ part of the microcontroller firmware.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_version_hash_bootloader
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the version hash (commit hash) of the bootloader
+ part of the microcontroller firmware.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/mcu_type
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the microcontroller type (STM32, GD32, MKL).
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/reset_selector
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the selected factory reset level, determined by
+ how long the rear reset button was held by the user during board
+ reset.
+
+ Format: %i.
+
+What: /sys/bus/i2c/devices/<mcu_device>/serial_number
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the 64-bit board serial number in hexadecimal
+ format.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %016X.