diff options
Diffstat (limited to 'dts/Bindings/i2c/st,stm32-i2c.yaml')
| -rw-r--r-- | dts/Bindings/i2c/st,stm32-i2c.yaml | 86 |
1 files changed, 67 insertions, 19 deletions
diff --git a/dts/Bindings/i2c/st,stm32-i2c.yaml b/dts/Bindings/i2c/st,stm32-i2c.yaml index 900ec1ab6a..1b31b87c18 100644 --- a/dts/Bindings/i2c/st,stm32-i2c.yaml +++ b/dts/Bindings/i2c/st,stm32-i2c.yaml @@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml# title: I2C controller embedded in STMicroelectronics STM32 I2C platform maintainers: - - Pierre-Yves MORDRET <pierre-yves.mordret@st.com> + - Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com> allOf: - $ref: /schemas/i2c/i2c-controller.yaml# @@ -17,6 +17,9 @@ allOf: contains: enum: - st,stm32f7-i2c + - st,stm32mp13-i2c + - st,stm32mp15-i2c + - st,stm32mp25-i2c then: properties: i2c-scl-rising-time-ns: @@ -24,17 +27,9 @@ allOf: i2c-scl-falling-time-ns: default: 10 - - st,syscfg-fmp: - description: Use to set Fast Mode Plus bit within SYSCFG when - Fast Mode Plus speed is selected by slave. - Format is phandle to syscfg / register offset within - syscfg / register bitmask for FMP bit. - allOf: - - $ref: "/schemas/types.yaml#/definitions/phandle-array" - - items: - minItems: 3 - maxItems: 3 + else: + properties: + st,syscfg-fmp: false - if: properties: @@ -47,11 +42,38 @@ allOf: clock-frequency: enum: [100000, 400000] + - if: + properties: + compatible: + contains: + enum: + - st,stm32f4-i2c + - st,stm32f7-i2c + - st,stm32mp13-i2c + - st,stm32mp15-i2c + then: + properties: + interrupts: + minItems: 2 + + interrupt-names: + minItems: 2 + else: + properties: + interrupts: + maxItems: 1 + + interrupt-names: + maxItems: 1 + properties: compatible: enum: - st,stm32f4-i2c - st,stm32f7-i2c + - st,stm32mp13-i2c + - st,stm32mp15-i2c + - st,stm32mp25-i2c reg: maxItems: 1 @@ -60,6 +82,13 @@ properties: items: - description: interrupt ID for I2C event - description: interrupt ID for I2C error + minItems: 1 + + interrupt-names: + items: + - const: event + - const: error + minItems: 1 resets: maxItems: 1 @@ -80,11 +109,23 @@ properties: clock-frequency: description: Desired I2C bus clock frequency in Hz. If not specified, the default 100 kHz frequency will be used. - For STM32F7, STM32H7 and STM32MP1 SoCs, Standard-mode, - Fast-mode and Fast-mode Plus are supported, possible - values are 100000, 400000 and 1000000. + For STM32F7, STM32H7 and STM32MP1 SoCs, if timing parameters + match, the bus clock frequency can be from 1Hz to 1MHz. default: 100000 - enum: [100000, 400000, 1000000] + minimum: 1 + maximum: 1000000 + + st,syscfg-fmp: + description: Use to set Fast Mode Plus bit within SYSCFG when Fast Mode + Plus speed is selected by slave. + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: phandle to syscfg + - description: register offset within syscfg + - description: register bitmask for FMP bit + + wakeup-source: true required: - compatible @@ -93,6 +134,8 @@ required: - resets - clocks +unevaluatedProperties: false + examples: - | #include <dt-bindings/mfd/stm32f7-rcc.h> @@ -109,6 +152,9 @@ examples: clocks = <&rcc 0 149>; }; + - | + #include <dt-bindings/mfd/stm32f7-rcc.h> + #include <dt-bindings/clock/stm32fx-clock.h> //Example 2 (with st,stm32f7-i2c compatible) i2c@40005800 { compatible = "st,stm32f7-i2c"; @@ -121,12 +167,15 @@ examples: clocks = <&rcc 1 CLK_I2C1>; }; - //Example 3 (with st,stm32f7-i2c compatible on stm32mp) + - | + #include <dt-bindings/mfd/stm32f7-rcc.h> + #include <dt-bindings/clock/stm32fx-clock.h> + //Example 3 (with st,stm32mp15-i2c compatible on stm32mp) #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/clock/stm32mp1-clks.h> #include <dt-bindings/reset/stm32mp1-resets.h> i2c@40013000 { - compatible = "st,stm32f7-i2c"; + compatible = "st,stm32mp15-i2c"; #address-cells = <1>; #size-cells = <0>; reg = <0x40013000 0x400>; @@ -138,4 +187,3 @@ examples: i2c-scl-falling-time-ns = <20>; st,syscfg-fmp = <&syscfg 0x4 0x2>; }; -... |