1* Samsung's High Speed I2C controller 2 3The Samsung's High Speed I2C controller is used to interface with I2C devices 4at various speeds ranging from 100khz to 3.4Mhz. 5 6Required properties: 7 - compatible: value should be. 8 -> "samsung,exynos5-hsi2c", (DEPRECATED) 9 for i2c compatible with HSI2C available 10 on Exynos5250 and Exynos5420 SoCs. 11 -> "samsung,exynos5250-hsi2c", for i2c compatible with HSI2C available 12 on Exynos5250 and Exynos5420 SoCs. 13 -> "samsung,exynos5260-hsi2c", for i2c compatible with HSI2C available 14 on Exynos5260 SoCs. 15 -> "samsung,exynos7-hsi2c", for i2c compatible with HSI2C available 16 on Exynos7 SoCs. 17 18 - reg: physical base address of the controller and length of memory mapped 19 region. 20 - interrupts: interrupt number to the cpu. 21 - #address-cells: always 1 (for i2c addresses) 22 - #size-cells: always 0 23 24 - Pinctrl: 25 - pinctrl-0: Pin control group to be used for this controller. 26 - pinctrl-names: Should contain only one value - "default". 27 28Optional properties: 29 - clock-frequency: Desired operating frequency in Hz of the bus. 30 -> If not specified, the bus operates in fast-speed mode at 31 at 100khz. 32 -> If specified, the bus operates in high-speed mode only if the 33 clock-frequency is >= 1Mhz. 34 35Example: 36 37hsi2c@12ca0000 { 38 compatible = "samsung,exynos5250-hsi2c"; 39 reg = <0x12ca0000 0x100>; 40 interrupts = <56>; 41 clock-frequency = <100000>; 42 43 pinctrl-0 = <&i2c4_bus>; 44 pinctrl-names = "default"; 45 46 #address-cells = <1>; 47 #size-cells = <0>; 48 49 s2mps11_pmic@66 { 50 compatible = "samsung,s2mps11-pmic"; 51 reg = <0x66>; 52 }; 53}; 54