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- ST SSC binding, for I2C mode operation
- Required properties :
- - compatible : Must be "st,comms-ssc-i2c" or "st,comms-ssc4-i2c"
- - reg : Offset and length of the register set for the device
- - interrupts : the interrupt specifier
- - clock-names: Must contain "ssc".
- - clocks: Must contain an entry for each name in clock-names. See the common
- clock bindings.
- - A pinctrl state named "default" must be defined to set pins in mode of
- operation for I2C transfer.
- Optional properties :
- - clock-frequency : Desired I2C bus clock frequency in Hz. If not specified,
- the default 100 kHz frequency will be used. As only Normal and Fast modes
- are supported, possible values are 100000 and 400000.
- - st,i2c-min-scl-pulse-width-us : The minimum valid SCL pulse width that is
- allowed through the deglitch circuit. In units of us.
- - st,i2c-min-sda-pulse-width-us : The minimum valid SDA pulse width that is
- allowed through the deglitch circuit. In units of us.
- - A pinctrl state named "idle" could be defined to set pins in idle state
- when I2C instance is not performing a transfer.
- - A pinctrl state named "sleep" could be defined to set pins in sleep state
- when driver enters in suspend.
- Example :
- i2c0: i2c@fed40000 {
- compatible = "st,comms-ssc4-i2c";
- reg = <0xfed40000 0x110>;
- interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clk_s_a0_ls CLK_ICN_REG>;
- clock-names = "ssc";
- clock-frequency = <400000>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_i2c0_default>;
- st,i2c-min-scl-pulse-width-us = <0>;
- st,i2c-min-sda-pulse-width-us = <5>;
- };
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