| 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>; |
| }; |
