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arm: dts: mt7622: add i2c support

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Add both hardware and software i2c support for mt7622.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
This commit is contained in:
Weijie Gao 2022-09-09 19:59:50 +08:00 committed by Tom Rini
parent 9ad71f6340
commit 663e6262c5
2 changed files with 42 additions and 0 deletions
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18
arch/arm/dts/mt7622-rfb.dts
View File

@ -159,6 +159,14 @@
};
};
i2c1_pins_default: i2c1-default {
mux {
function = "i2c";
groups = "i2c1_0";
};
};
};
&snfi {
@ -242,3 +250,13 @@
&u3phy {
status = "okay";
};
&soft_i2c {
status = "disabled";
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins_default>;
status = "okay";
};

24
arch/arm/dts/mt7622.dtsi
View File

@ -424,4 +424,28 @@
status = "disabled";
};
soft_i2c: soft_i2c@0 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "i2c-gpio";
gpios = <&gpio 56 GPIO_ACTIVE_HIGH>, /* SDA */
<&gpio 55 GPIO_ACTIVE_HIGH>; /* CLK */
i2c-gpio,delay-us = <5>;
status = "disabled";
};
i2c1: i2c@11008000 {
compatible = "mediatek,mt7622-i2c";
reg = <0x11008000 0x90>,
<0x11000180 0x80>;
interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_LOW>;
clock-div = <16>;
clocks = <&pericfg CLK_PERI_I2C1_PD>,
<&pericfg CLK_PERI_AP_DMA_PD>;
clock-names = "main", "dma";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
};
};