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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-08 22:46:10 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-08 22:46:10 +0300 |
commit | dab334c98bf3563f57dc694242192f9e1cc95f96 (patch) | |
tree | 6fa3ca1961d790c226e7054408317b0c84ccaebb /Documentation | |
parent | 206825f50f908771934e1fba2bfc2e1f1138b36a (diff) | |
parent | c6f49acb52c79f8e84af2eda4fc002a2068a6c9e (diff) | |
download | linux-dab334c98bf3563f57dc694242192f9e1cc95f96.tar.xz |
Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- big refactoring of the PASEMI driver to support the Apple M1
- huge improvements to the XIIC in terms of locking and SMP safety
- refactoring and clean ups for the i801 driver
... and the usual bunch of small driver updates
* 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (43 commits)
i2c: amd-mp2-plat: ACPI: Use ACPI_COMPANION() directly
i2c: i801: Add support for Intel Ice Lake PCH-N
i2c: virtio: update the maintainer to Conghui
i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()'
i2c: qup: move to use request_irq by IRQF_NO_AUTOEN flag
i2c: qup: fix a trivial typo
i2c: tegra: Ensure that device is suspended before driver is removed
i2c: i801: Fix incorrect and needless software PEC disabling
i2c: mediatek: Dump i2c/dma register when a timeout occurs
i2c: mediatek: Reset the handshake signal between i2c and dma
i2c: mlxcpld: Allow flexible polling time setting for I2C transactions
i2c: pasemi: Set enable bit for Apple variant
i2c: pasemi: Add Apple platform driver
i2c: pasemi: Refactor _probe to use devm_*
i2c: pasemi: Allow to configure bus frequency
i2c: pasemi: Move common reset code to own function
i2c: pasemi: Split pci driver to its own file
i2c: pasemi: Split off common probing code
i2c: pasemi: Remove usage of pci_dev
i2c: pasemi: Use dev_name instead of port number
...
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/eeprom/at24.yaml | 6 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/i2c/apple,i2c.yaml | 61 |
2 files changed, 67 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/eeprom/at24.yaml b/Documentation/devicetree/bindings/eeprom/at24.yaml index 914a423ec449..4c5396a9744f 100644 --- a/Documentation/devicetree/bindings/eeprom/at24.yaml +++ b/Documentation/devicetree/bindings/eeprom/at24.yaml @@ -98,6 +98,12 @@ properties: - const: nxp,se97b - const: atmel,24c02 - items: + - const: onnn,cat24c04 + - const: atmel,24c04 + - items: + - const: onnn,cat24c05 + - const: atmel,24c04 + - items: - const: renesas,r1ex24002 - const: atmel,24c02 - items: diff --git a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml new file mode 100644 index 000000000000..22fc8483256f --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/i2c/apple,i2c.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Apple/PASemi I2C controller + +maintainers: + - Sven Peter <sven@svenpeter.dev> + +description: | + Apple SoCs such as the M1 come with a I2C controller based on the one found + in machines with P. A. Semi's PWRficient processors. + The bus is used to communicate with e.g. USB PD chips or the speaker + amp. + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + enum: + - apple,t8103-i2c + - apple,i2c + + reg: + maxItems: 1 + + clocks: + items: + - description: I2C bus reference clock + + interrupts: + maxItems: 1 + + clock-frequency: + description: | + Desired I2C bus clock frequency in Hz. If not specified, 100 kHz will be + used. This frequency is generated by dividing the reference clock. + Allowed values are between ref_clk/(16*4) and ref_clk/(16*255). + +required: + - compatible + - reg + - clocks + - interrupts + +unevaluatedProperties: false + +examples: + - | + i2c@35010000 { + compatible = "apple,t8103-i2c"; + reg = <0x35010000 0x4000>; + interrupt-parent = <&aic>; + interrupts = <0 627 4>; + clocks = <&ref_clk>; + #address-cells = <1>; + #size-cells = <0>; + }; |