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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt new file mode 100644 index 000000000..7f0194fdd --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt @@ -0,0 +1,49 @@ +* MediaTek's I2C controller + +The MediaTek's I2C controller is used to interface with I2C devices. + +Required properties: + - compatible: value should be either of the following. + "mediatek,mt2701-i2c", "mediatek,mt6577-i2c": for MediaTek MT2701 + "mediatek,mt2712-i2c": for MediaTek MT2712 + "mediatek,mt6577-i2c": for MediaTek MT6577 + "mediatek,mt6589-i2c": for MediaTek MT6589 + "mediatek,mt6797-i2c", "mediatek,mt6577-i2c": for MediaTek MT6797 + "mediatek,mt7622-i2c": for MediaTek MT7622 + "mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for MediaTek MT7623 + "mediatek,mt7629-i2c", "mediatek,mt2712-i2c": for MediaTek MT7629 + "mediatek,mt8173-i2c": for MediaTek MT8173 + "mediatek,mt8183-i2c": for MediaTek MT8183 + "mediatek,mt8192-i2c": for MediaTek MT8192 + "mediatek,mt8516-i2c", "mediatek,mt2712-i2c": for MediaTek MT8516 + - reg: physical base address of the controller and dma base, length of memory + mapped region. + - interrupts: interrupt number to the cpu. + - clock-div: the fixed value for frequency divider of clock source in i2c + module. Each IC may be different. + - clocks: clock name from clock manager + - clock-names: Must include "main" and "dma", "arb" is for multi-master that + one bus has more than two i2c controllers, if enable have-pmic need include + "pmic" extra. + +Optional properties: + - clock-frequency: Frequency in Hz of the bus when transfer, the default value + is 100000. + - mediatek,have-pmic: platform can control i2c form special pmic side. + Only mt6589 and mt8135 support this feature. + - mediatek,use-push-pull: IO config use push-pull mode. + +Example: + + i2c0: i2c@1100d000 { + compatible = "mediatek,mt6577-i2c"; + reg = <0x1100d000 0x70>, + <0x11000300 0x80>; + interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>; + clock-frequency = <400000>; + mediatek,have-pmic; + clock-div = <16>; + clocks = <&i2c0_ck>, <&ap_dma_ck>; + clock-names = "main", "dma"; + }; + |