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53 lines
1.6 KiB
53 lines
1.6 KiB
* Samsung's High Speed I2C controller |
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The Samsung's High Speed I2C controller is used to interface with I2C devices |
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at various speeds ranging from 100khz to 3.4Mhz. |
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Required properties: |
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- compatible: value should be. |
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-> "samsung,exynos5-hsi2c", (DEPRECATED) |
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for i2c compatible with HSI2C available |
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on Exynos5250 and Exynos5420 SoCs. |
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-> "samsung,exynos5250-hsi2c", for i2c compatible with HSI2C available |
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on Exynos5250 and Exynos5420 SoCs. |
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-> "samsung,exynos5260-hsi2c", for i2c compatible with HSI2C available |
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on Exynos5260 SoCs. |
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-> "samsung,exynos7-hsi2c", for i2c compatible with HSI2C available |
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on Exynos7 SoCs. |
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- reg: physical base address of the controller and length of memory mapped |
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region. |
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- interrupts: interrupt number to the cpu. |
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- #address-cells: always 1 (for i2c addresses) |
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- #size-cells: always 0 |
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- Pinctrl: |
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- pinctrl-0: Pin control group to be used for this controller. |
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- pinctrl-names: Should contain only one value - "default". |
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Optional properties: |
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- clock-frequency: Desired operating frequency in Hz of the bus. |
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-> If not specified, the bus operates in fast-speed mode at |
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at 100khz. |
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-> If specified, the bus operates in high-speed mode only if the |
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clock-frequency is >= 1Mhz. |
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Example: |
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hsi2c@12ca0000 { |
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compatible = "samsung,exynos5250-hsi2c"; |
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reg = <0x12ca0000 0x100>; |
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interrupts = <56>; |
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clock-frequency = <100000>; |
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pinctrl-0 = <&i2c4_bus>; |
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pinctrl-names = "default"; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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s2mps11_pmic@66 { |
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compatible = "samsung,s2mps11-pmic"; |
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reg = <0x66>; |
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}; |
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};
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