| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/i2c/st,sti-i2c.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: I2C controller embedded in STMicroelectronics STi platform |
| 8 | |
| 9 | maintainers: |
| 10 | - Patrice Chotard <patrice.chotard@foss.st.com> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: /schemas/i2c/i2c-controller.yaml# |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | enum: |
| 18 | - st,comms-ssc-i2c |
| 19 | - st,comms-ssc4-i2c |
| 20 | |
| 21 | reg: |
| 22 | maxItems: 1 |
| 23 | |
| 24 | interrupts: |
| 25 | maxItems: 1 |
| 26 | |
| 27 | clocks: |
| 28 | maxItems: 1 |
| 29 | |
| 30 | clock-names: |
| 31 | maxItems: 1 |
| 32 | |
| 33 | clock-frequency: |
| 34 | enum: [ 100000, 400000 ] |
| 35 | default: 100000 |
| 36 | |
| 37 | st,i2c-min-scl-pulse-width-us: |
| 38 | description: |
| 39 | The minimum valid SCL pulse width that is allowed through the |
| 40 | deglitch circuit. In units of us. |
| 41 | |
| 42 | st,i2c-min-sda-pulse-width-us: |
| 43 | description: |
| 44 | The minimum valid SDA pulse width that is allowed through the |
| 45 | deglitch circuit. In units of us. |
| 46 | |
| 47 | required: |
| 48 | - compatible |
| 49 | - reg |
| 50 | - interrupts |
| 51 | - clocks |
| 52 | - clock-names |
| 53 | |
| 54 | unevaluatedProperties: false |
| 55 | |
| 56 | examples: |
| 57 | - | |
| 58 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 59 | #include <dt-bindings/clock/stih407-clks.h> |
| 60 | i2c@fed40000 { |
| 61 | compatible = "st,comms-ssc4-i2c"; |
| 62 | reg = <0xfed40000 0x110>; |
| 63 | interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>; |
| 64 | clocks = <&clk_s_a0_ls CLK_ICN_REG>; |
| 65 | clock-names = "ssc"; |
| 66 | clock-frequency = <400000>; |
| 67 | pinctrl-names = "default"; |
| 68 | pinctrl-0 = <&pinctrl_i2c0_default>; |
| 69 | st,i2c-min-scl-pulse-width-us = <0>; |
| 70 | st,i2c-min-sda-pulse-width-us = <5>; |
| 71 | }; |